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About this Manual

We’ve added this manual to the Agilent website in an effort to help you support

your product. This manual is the best copy we could find; it may be incomplete

or contain dated information. If we find a more recent copy in the future, we will

add it to the Agilent website.

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current name/number is now Agilent XXXX. For example, model number

HP8648A is now model number Agilent 8648A.

Summary of content (268 pages)

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About this Manual We’ve added this manual to the Agilent website in an effort to help you support your product. This manual is the best copy we could find; it may be incomplete or contain dated information. If we find a more recent copy in the future, we will add it to the Agilent website. Support for Your Product Agilent no longer sells or supports this product. Our service centers may be able to perform calibration if no repair parts are needed, but no other support from Agilent is available.
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North American FM Tests HP 11807A,E Option 001 Reference Guide for the HP 8920A,B,D HP Part No. 11807-90116 Printed in U. S. A.
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Copyright © Hewlett-Packard Company 1995 RESTRICTED Use, duplication or disclosure by the U. S. Government is subject to restrictions as RIGHTS LEGEND set forth in subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause in DFARS 252.227-7013. Hewlett-Packard Company 3000 Hanover Street Palo Alto, CA 94304. U.S.A. Rights for non-DOD U.S. Government Departments and Agencies are as set forth in FAR 52.227-19 (c) (1,2).
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Table of Contents Contents 1 Product Description HP 11807A,E Software 16 Finding the Information You Need 20 Additional Services Available 21 3
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Contents 2 Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.
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Contents 3 Using the Software/HP 8920A FW Rev. Below A.14.
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Contents 4 Test, Parameter, and Pass/Fail Limit Descriptions Introduction 90 TEST_01. TX and RX Stand-by Current Drain 91 TEST_02. TX Frequency Error 92 TEST_03. TX Output Power 93 TEST_04. TX Modulation Limiting 94 TEST_05. TX Audio Frequency Response 95 TEST_06. TX Audio Distortion 96 TEST_07. TX Microphone Sensitivity 97 TEST_08. TX FM Hum and Noise 98 TEST_09. TX Residual AM Hum and Noise 99 TEST_10. TX CTCSS/CDCSS Deviation, Freq/Code 100 TEST_11. RX Hum and Noise 101 TEST_12.
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Contents TEST_19. RX Variation of Sens with Freq 109 TEST_20. RX Quick Test 110 TEST_21.
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Contents Parameter 17, RX Tolerance for Setting Volume 129 Parameter 18, RX Usable Sens Set and Measure 130 Parameter 19, RX Usable Sensitivity SINAD Level 131 Parameter 20, TX Audio Distn % Full Rated System Dev 132 Parameters 21-23, TX Audio Freq Response Start, Step, and Stop Frequency 133 Parameter 24, TX CD/CTCSS Available 134 Parameter 25, TX CD/CTCSS Control 135 Parameter 26, TX CD/CTCSS Filter 1 Opt 136 Parameter 27, TX De-emphasis 137 Parameter 28, TX Dekey Between TX Tests 138 Parameter 29, TX Mi
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Contents Pass/Fail Limit 4, RX Audio Frequency Response Roll <0.5 kHz 148 Pass/Fail Limit 5, TX Audio Frequency Response Roll >2.
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Contents Pass/Fail Limit 22, TX Audio Frequency Response Roll >2.3 kHz for 896-940M 166 Pass/Fail Limit 23, TX Audio Response Roll >2.5 kHz 167 Pass/Fail Limit 24, TX Audio Frequency Response Roll >2.
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Contents 5 Reference (Alphabetical) Conventions Used 186 Copying Files 187 Data Collection (Saving and Retrieving Test Results) 189 Disks 198 Exiting a Program 200 HP-IB Control Annunciators 201 Memory Cards 202 Parameters 209 Pass/Fail Limits (specifications) 210 Pausing or Stopping a TEST 211 Printing 212 Procedures 225 RAM 230 Saving Tests Results 232 Serial Port 233 Test Execution Conditions 234 USER Keys 236 11
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Contents 6 Problem Solving If you have a problem testing your radio 240 If the test procedure doesn’t run on an test set 241 If the HP 11807A,E program was incorrectly loaded 242 If the printer does not print the test results 243 If the FM radio fails the audio tests 245 If radio volume can’t be set on the test set’s meter screen 246 If your radio fails CTCSS/CDCSS tests or the tests don’t run 247 If you can’t get the data-collection function to work 251 12
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Contents Glossary 253 13
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Contents Index 257 14
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1 Chapter 1 Product Description Product Description 15
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Chapter 1, Product Description HP 11807A,E Software HP 11807A,E Software The HP 11807A,E Option 001 Software performs fast, accurate, automated tests that determine the RF and audio performance of FM radios. The measurement methods and specifications used for these tests are based on methods and values derived from the following industry standards: EIA/TIA-603 EIA/TIA-204-D (TEST_19) Materials Included in This Package This package contains the following materials.
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Chapter 1, Product Description HP 11807A,E Software Recommended Equipment • HP 8920 Option 001: High-Stability Timebase • HP 8920 Option 004: Tone/Digital Signaling • HP 8920A Option 010: 400 Hz High-Pass Filter • HP 8920A Option 013: C MESSAGE Weighting Filter • External power supply An external power supply for the FM radio can be configured to the HP 8920A in one of three ways: 1. A power supply or battery can be connected directly to the FM radio. 2.
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Chapter 1, Product Description HP 11807A,E Software Ordering Upgrades If your test set does not contain all of the required options you must update your instrument accordingly. Order the necessary upgrade kit(s) from your local Hewlett-Packard sales office. Regional sales offices are listed at the front of this manual.
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Chapter 1, Product Description HP 11807A,E Software • RX usable sensitivity • RX audio squelch sensitivity • RX squelch blocking • RX CTCSS/CDCSS opening • RX audio sensitivity • RX variation of sensitivity with frequency • RX quick test • TX quick test For test, parameter, and specification descriptions, see chapter 4, "Test, Parameter, and Pass/Fail Limit Descriptions" on page 89.
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Chapter 1, Product Description Finding the Information You Need Finding the Information You Need This manual describes the setup and use of the HP 11807A,E Software with the HP 8920A,B,D Test Set. The book is arranged in self-contained chapters to provide the following information: 4 5 6 20 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\product.
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Chapter 1, Product Description Additional Services Available Additional Services Available Consult the HP 8920 User’s Guide or call the HP 8920 Hotline 1-800-922-8920 (in the USA and Canada only) and give your software model number. S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\product.
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Chapter 1, Product Description Additional Services Available 22 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\product.
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2 Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Chapter 2 Using the Software Above FW Rev. A.14.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 NOTE: The firmware revision A.14.00 in the HP 8920A,D had several enhancements, which are standard in the HP 8920B. This chapter applies to users with: • HP 8920A test sets with firmware revision above A.14.00 • All HP 8920B test sets. The test set’s firmware revision is displayed on the top right corner of the configuration screen. • Press SHIFT CONFIG to display the configuration screen and read the firmware revision.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 The software can be run on the factory default settings or customized to your individual needs and specific requirements. This chapter provides detailed information on how to load, run, and customize the software. The test set has two methods of accessing on-line help. In each of the screens in the test environment, k4 (Help) accesses specific information about how to set up/use the current screen.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Testing Overview Testing Overview Pressing TESTS will display what is called the TESTS (Main Menu) screen. To begin testing, you must first load the software and make connections.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Testing Overview Setting Up the Test Set and Making Connections Before you begin testing, you must set up the test set and make the appropriate hardware connections. 28 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\softav14.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Testing Overview Making a Connection 29 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\softav14.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Testing Overview Selecting a Test Procedure To load the software, you must first select the location to load from (in this case, it will be Card) and a procedure filename. Your card comes pre-programmed with at least one procedure. The actual software program does not get loaded into the test set’s memory until k1 (Run Test) is selected.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Customizing Testing Customizing Testing Because of the diversity of individual testing needs, the software has been designed so that changes may be easily made from the test set’s front panel. You may store these changes on a memory card so that you may skip these steps in the future. See "Saving a Test Procedure" on page 50. Because your needs change, the software allows changes to its default settings whenever you need to make them.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Customizing Testing Changing the Order of Tests You may define the order of tests to include all, some, or just one of the tests available. When the first test is finished, the next will run. The test sequence will remain in the test set’s battery backed-up memory until another test sequence is loaded or set up. For information on saving a customized test sequence, see "Saving a Test Procedure" on page 50.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Customizing Testing Specifying Channel Information For each channel that you wish to specify, you must enter the following information into the Channel Information screen: • • NOTE: Enter a −1 in the RX or TX test frequency fields to have all subsequent frequencies ignored when testing is started. • • 38 RX Freq (MHz) • Enter the receive frequency of your radio in (MHz).
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Customizing Testing • • Test? (yes/no) specifies whether you want to test the UUT at this channel. If set to “No” then the UUT will not be tested at that channel, but you may retain the channel information in the table for later use. If set to “Yes” then the channel will be used as defined by settings of Prime? and All Chans? fields. Prime? (yes/no) specifies which channels are “prime”.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Customizing Testing Below is an example of how the software would run if you had a procedure set up as follows: Table 1 Chan # Test? Prime? Chan 01 Yes Yes Chan 02 Yes No Chan 03 No No Table 2 Test Number All Chan? Setting Test 01 No Test 02 Yes Test 03 Yes Test 04 No The result would be: 40 • Chan 01 is used in Test 01, Test 02, Test 03, and Test 04. • Chan 02 is used in Test 02, and Test 03 only.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Customizing Testing The following table 3 shows how to properly configure these settings according to your testing needs.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Customizing Testing Changing Pass/Fail Limits Pass/Fail limits define the values a measurement’s result is compared against to determine if the UUT meets its specified standards. Default values are set in the test software. These default values may be changed to suit your particular requirements. The following describes how to change the pass/fail (upper and lower) limits.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Customizing Testing Changing the Test Parameters The software uses parameters to optimize the test environment and conditions for your testing situation. Many of the test parameters are determined by examining your test needs. The software comes with default settings for test parameters. Review the defaults for your particular needs. See "Test Parameter Descriptions," in chapter 4, on page 112 for descriptions of each test parameter.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Customizing Testing Saving a Test Procedure A Test Procedure is a collection of channel information, test parameters, testing order, and pass/fail limits saved in a file that customizes the test software to a specific application. You may save the file to a memory card or disk.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Customizing Testing Changing Test Execution Conditions Test Execution Conditions define where and when test output occurs. You may decide to: • NOTE: Display output on CRT only, or display on CRT and print hardcopy (Output Results To). If printing test results is desired, after selecting Printer, additional steps are necessary to connect and configure the printer. See "Printing," in chapter 5, on page 212.
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Chapter 2, Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00 Customizing Testing How to Change Test Execution Conditions Printing and Saving Test Results Printing and saving test results are features of the software which require additional equipment and configuration. See "Printing," in chapter 5, on page 212 for detailed descriptions and instructions for these features. 55 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\softav14.
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3 Using the Software/HP 8920A FW Rev. Below A.14.00 Chapter 3 Using the Software Below FW Rev. A.14.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 NOTE: The firmware revision A.14.00 in the HP 8920A,D had several enhancements, which are standard in the HP 8920B. This chapter applies to users with: • HP 8920A test sets with firmware revision below A.14.00 The test set’s firmware revision is displayed on the top right corner of the configuration screen. • Press SHIFT CONFIG to display the configuration screen and read the firmware revision.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 The HP 11807A software can be run on the factory default settings or customized to your individual needs and the specific requirements. This chapter provides detailed information on how to load, run, and customize the software. 59 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\softbw14.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 Testing Overview Testing Overview Pressing TESTS will display what is called the TESTS screen. To begin testing, you must first load the software and make connections.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 Testing Overview Setting Up the Test Set and Making Connections Before you begin testing, you must set up the test set and make the appropriate hardware connections. 62 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\softbw14.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 Testing Overview Making a Connection 63 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\softbw14.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 Testing Overview Selecting a Test Procedure To load the software, you must first select the location to load from (in this case, it will be Card) and a procedure filename. Your card comes pre-programmed with at least one procedure. The actual software program does not get loaded into the test set’s memory until k1 (Run Test) is selected. It will take approximately 2 minutes to load the software in an HP 8920A,D.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 Customizing Testing Customizing Testing Because of the diversity of individual testing needs, the software has been designed so that changes may be easily made from the test set’s front panel. You may store these changes on an SRAM card so that you may skip these steps in the future. See "Saving a Test Procedure Using the Procedure Manager," in chapter 3, on page 83. You may customize your software at any time.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 Customizing Testing Beginning Software Customization All software customization begins by accessing the TESTS screen first and then selecting the Test Function which will open the Choices menu. To access the TESTS screen, press TESTS on the front panel of the test set. 67 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\softbw14.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 Customizing Testing Changing the Order of Tests (Edit Sequence) You may define a test sequence to include all, some, or just one of the tests available. When the first test is finished, the next will run. The test sequence will remain in the Test System’s battery backed-up memory until another test sequence is loaded or set up. For information on saving a customized test sequence, see "Changing the Order of Tests (Edit Sequence)" on page 68.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 Customizing Testing Specifying Channel Information (Edit Frequency) For each channel that you wish to specify, you must enter the following information into the Edit Frequency screen: • • NOTE: RX Freq (MHz) • Enter the receive frequency of your radio in (MHz). TX Freq (MHz) • Enter the transmit frequency of your radio in (MHz). Enter a −1 in the RX or TX test frequency fields to have all subsequent frequencies ignored when testing is started.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 Customizing Testing Below is an example of how the software would run if you had a procedure set up as follows: Table 4 Chan # Test? Prime? Chan 01 Yes Yes Chan 02 Yes No Chan 03 No No Table 5 Test Number All Chan? Setting Test 01 No Test 02 Yes Test 03 Yes Test 04 No The result would be: • Chan 01 is used in Test 01, Test 02, Test 03, and Test 04. • Chan 02 is used in 02, and Test 03 only. • Chan 03 is not used.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 Customizing Testing The following table shows how to properly configure these settings according to your testing needs.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 Customizing Testing Changing Pass/Fail Limits (Edit Specifications) Specifications are values that set pass/fail limits for tests. Default values are available in the test software. These default values may be changed to suit your particular requirements. The following describes how to change the pass/fail (upper and lower) limits in the HP 8920A,D Edit Specification screen.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 Customizing Testing Changing the Test Environment and Conditions (Edit Parameters) The software uses parameters to optimize the test environment and conditions for your testing situation. Many of the parameters are determined by examining your test needs. Other parameters are determined by performing measurements to calibrate items in your system.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 Customizing Testing Saving a Test Procedure Using the Procedure Manager A Test Procedure is a collection of pass/fail limits (specifications), the test environment and conditions (parameters), and a TEST sequence, saved in a file that customizes the test software to a specific application. You may save the file to a memory card or disk.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 Customizing Testing Changing Test Execution Conditions Test Execution Conditions define how your testing program starts and where and when test output occurs. You may decide to: NOTE: • Start the program automatically when the Test System is powered on. (Autostart) • Stop testing when a measurement fails or continue through all of the tests without stopping.
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Chapter 3, Using the Software/HP 8920A FW Rev. Below A.14.00 Customizing Testing How to Change Test Execution Conditions Printing and Saving Test Results Printing and saving test results are features of the HP 11807A software which require additional equipment and configuration. See "Printing," in chapter 5, on page 212 for detailed descriptions and instructions for these features. 88 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\softbw14.
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4 Test, Parameter, and Pass/Fail Limit Descriptions Chapter 4 Test, Parameter, and Pass/Fail Limit Descriptions 89
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Introduction Introduction Tests are a series of measurements, and one or more tests make up a procedure (see chapter 2, "Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00"). While you may change the tests that make up a procedure, you may not change the measurements the test will perform. Generally, the order in which the tests are run is not important.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_01. TX and RX Stand-by Current Drain TEST_01. TX and RX Stand-by Current Drain This test measures the power-supply current required by the FM radio while it’s in both the transmit and receive modes. While transmitting, current drain is measured without modulation, and while receiving, stand-by current drain is measured after the squelch control is set to maximum.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_02. TX Frequency Error TEST_02. TX Frequency Error This test measures the difference between the unmodulated carrier frequency and the assigned carrier frequency. The frequency error is measured in parts-permillion (ppm). Pass/Fail Limits Used Pass/Fail Limit 30, TX Frequency Error 92 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\descrptn.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_03. TX Output Power TEST_03. TX Output Power This test measures the power available at the output terminals of the transmitter when connected to a 50 Ω load. Testing is performed at the nominal supply voltage and can also be performed with high and low supply voltages for extreme measurements if a programmable power supply is configured to the test set.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_04. TX Modulation Limiting TEST_04. TX Modulation Limiting This test measures the ability of the transmitter’s circuits to prevent the transmitter from producing deviations in excess of a rated system deviation. During testing, the audio input is over driven at a constant level while the modulation rate is stepped from 300 Hz to 3 kHz (step size is determined by Parameter 30, TX Modulation Limiting Sweep Step Freq).
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_05. TX Audio Frequency Response TEST_05. TX Audio Frequency Response This test compares the audio frequency response of your transmitter to a 6 dB/ octave pre-emphasis curve from 0.5 kHz to 2.5 kHz. Variation from that preemphasis curve is measured separately for frequencies <0.5 kHz and >2.7 kHz. An additional roll-off is allowed from 2.3 kHz to 2.7 kHz, and from 2.7 kHz to 3 kHz in equipment operating in the 896 MHz to 940 MHz range.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_06. TX Audio Distortion TEST_06. TX Audio Distortion This test measures the audio-frequency harmonic distortion, which is the change in harmonic content of the input signal as a result of passing through the audio and RF circuits of the transmitter. Audio connections from the radio to the test set are required for this test. The 400 Hz High-Pass Filter is used by this test if Option 010 is installed in the test set.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_07. TX Microphone Sensitivity TEST_07. TX Microphone Sensitivity This test measures the level of the audio-input signal required to produce 60% of rated system deviation. The 400 Hz High-Pass Filter is used by this test if Option 010 is installed in the test set. This test can be run in two different ways: • • The first method is the “iterative” test where Parameter 29, TX Mic Sens Set and Measure is set to “0”.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_08. TX FM Hum and Noise TEST_08. TX FM Hum and Noise This test measures the ratio of residual frequency modulation to the reference taken at 60% of rated system deviation. Audio connections from the radio to the test set are required for this test. The 400 Hz High-Pass Filter is used if Option 010 is installed in the test set.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_09. TX Residual AM Hum and Noise TEST_09. TX Residual AM Hum and Noise This test measures the AM hum and noise level which is the amount of amplitude modulation present on the carrier at the output of the receiver in the absence of any audio-input signal. The 400 Hz High-Pass Filter is used if Option 010 is installed in the test set. Residual AM hum and noise is measured in percent when the transmitter is keyed.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_10. TX CTCSS/CDCSS Deviation, Freq/Code TEST_10. TX CTCSS/CDCSS Deviation, Freq/Code This test measures the peak+ deviation, and frequency error of the transmitted CTCSS (Continuous Tone-Controlled Squelch System) and the CDCSS (Continuous Digital-Controlled Squelch System).
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_11. RX Hum and Noise TEST_11. RX Hum and Noise This test measures the receiver’s hum and noise ratio (a ratio of the output signal power to the residual output power in the absence of modulation) in decibels. Hum and noise is measured at unsquelched and squelched settings. Audio connections from the radio to the test set are required for this test.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_12. RX Audio Distortion TEST_12. RX Audio Distortion This test measures audio distortion from the receiver when a standard RF signal (test Parameter 15, RX Squelch Preset Only) is applied to the radio. Distortion is the voltage ratio, expressed as a percentage, of: • the rms value of the sum of the second and higher harmonic components, • to the rms value of the complete signal at the output.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_13. RX Audio Frequency Response TEST_13. RX Audio Frequency Response This test compares the audio frequency response of your transmitter to a 6 dB/ octave pre-emphasis curve from 0.5 kHz to 2.5 kHz. Variation from that preemphasis curve is measured separately from frequencies <0.5 kHz and >2.5 kHz. Audio connections from the radio to the test set are required for this test.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_14. RX Usable Sensitivity TEST_14. RX Usable Sensitivity This test measures the RF signal level required to produce the standard SINAD ratio (determined by Parameter 18, RX Usable Sens Set and Measure the “usable sensitivity SINAD level”) at the output of the receiver. Audio connections from the radio to the test set are required for this test.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_15. RX Audio Squelch Sensitivity TEST_15. RX Audio Squelch Sensitivity This test measures the minimum signal level required from a standard input signal, which, when modulated at standard test modulation, will open the receiver squelch. Both “threshold” and “tight squelch” sensitivity are measured in this test. Threshold sensitivity is measured with the squelch adjusted for ≥40 dB noise quieting.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_16. RX Squelch Blocking TEST_16. RX Squelch Blocking This test measures the tendency of the receiver’s squelch circuit to close in the presence of modulation on the RF signal. Audio connections from the radio to the test set are required for this test. Squelch blocking is measured in dB.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_17. RX CTCSS/CDCSS Opening TEST_17. RX CTCSS/CDCSS Opening This test measures the level of the RF signal (with the squelch tone) required to open the squelch circuit of the radio with an applied CTCSS (Continuous ToneControlled Squelch System) tone or CDCSS (Continuous Digital-Controlled Squelch System) code word. The SINAD at the measured opening level is also measured.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_18. RX Audio Sensitivity TEST_18. RX Audio Sensitivity This test measures the receiver’s audio output after setting the signal level to 40% of rated system deviation. Audio connections from the radio to the test set are required for this test.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_19. RX Variation of Sens with Freq TEST_19. RX Variation of Sens with Freq This test sets the RF level to 6 dB above the usable sensitivity and then varies the RF frequency until usable sensitivity is re-obtained. Audio connections from the radio to the test set are required for this test. The variation of sensitivity with frequency is measured in kHz.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_20. RX Quick Test TEST_20. RX Quick Test This test contains a subset of the complete test list for receivers. It is designed to do a quick evaluation of the receiver using the following tests: • TEST_18. RX Audio Sensitivity • TEST_12. RX Audio Distortion • TEST_14. RX Usable Sensitivity • TEST_11. RX Hum and Noise • TEST_15. RX Audio Squelch Sensitivity (if CTCSS/CDCSS is not available) • TEST_17.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions TEST_21. TX Quick Test TEST_21. TX Quick Test This test contains a subset of the complete test list for transmitters. It is designed to enable you to do a quick evaluation of the transmitter using the following tests: • TEST_02. TX Frequency Error • TEST_03. TX Output Power • TEST_07. TX Microphone Sensitivity • TEST_04. TX Modulation Limiting • TEST_08. TX FM Hum and Noise • TEST_06. TX Audio Distortion • TEST_05.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Test Parameter Descriptions Test Parameter Descriptions Test parameters are used to define the conditions under which a test will run. You may edit the test parameters to change the default values to meet your specific testing needs and conditions. Test parameters may be used in one or more tests. For information on editing test parameters, see "Customizing Testing," in chapter 2, on page 32.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 1, RT External Pad and Cable Loss Parameter 1, RT External Pad and Cable Loss This test parameter allows you to set the amount of loss for any external cables or pads (attenuators) that may be connected to the test set.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 2, RT Full Rated System Deviation Parameter 2, RT Full Rated System Deviation This test parameter sets the full-rated (maximum) deviation used by the test set during receiver and transmitter tests. Besides being used in the tests shown below, full-rated system deviation is set on the test set by subroutines in the software whenever: ❒ the test set is set to the standard receiver mode. ❒ transmitter deviation is set on the test set.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 3, RT High Supply Voltage Parameter 3, RT High Supply Voltage This test parameter sets the high-power setting on the radio’s external power supply (if one is used) when testing extreme voltages during the output power test. For Example: If your industry standard specifies the high-supply voltage required for extreme measurements as +20% of the normal (nominal) supply voltage, which is +13.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 4, RT Low Supply Voltage Parameter 4, RT Low Supply Voltage This test parameter sets the low-power setting on the radio’s external power supply (if one is used) when testing extreme voltages during the output power test. For Example: If your industry standard specifies the low-supply voltage required for extreme measurements as −20% of the normal (nominal) supply voltage, which is +13.2V for the radio’s power supply, enter 10.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 5, RT Nominal Supply Voltage Parameter 5, RT Nominal Supply Voltage This test parameter sets the nominal (that is, normal) power-supply voltage required by the radio. Besides being used in the tests shown below, this test parameter is used whenever the test set is initialized prior to starting a Test Procedure. For Example: If your radio specification lists the nominal supply voltage to be +13.2V, enter 13.2 in the value column.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 6, RX Audio Freq Response Step Frequency Parameter 6, RX Audio Freq Response Step Frequency This test parameter sets the step size used to vary the modulation frequency when testing the receiver’s audio-frequency response. For Example: If your industry standard requires that receiver audio-frequency response is to be tested from 300 Hz to 3 kHz and you want vary the modulation frequency in 500 Hz steps, enter 0.5 in the value column.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 7, RX Audio Load Impedance Parameter 7, RX Audio Load Impedance This test parameter refers to the output impedance of the radio’s receiver circuitry. The value of this test parameter affects the calculation of audio sensitivity as it is measured and reported in the test results.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 8, RX CT/CDCSS Available Parameter 8, RX CT/CDCSS Available This test parameter lets the test set know whether the receiver’s audio-squelch circuitry uses Continuous Tone-Controlled Squelch System (CTCSS) or Continuous Digital-Controlled Squelch System (CDCSS).
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 9, RX CT/CDCSS Control Parameter 9, RX CT/CDCSS Control This test parameter allows the receiver’s audio-squelch circuitry for Continuous Tone-Controlled Squelch System (CTCSS) or Continuous Digital-Controlled Squelch System (CDCSS) to be controlled by the test operator.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 10, RX CT/CDCSS Deviation Parameter 10, RX CT/CDCSS Deviation This test parameter sets the amount of deviation on the signal modulating the CTCSS tone which is input to the receiver’s antenna during the CTCSS opening test. With CDCSS, the code word produces the necessary deviation. For Example: If you want the CTCSS tone to deviate 750 Hz during the CTCSS opening test, enter 0.75 in the value column. The value is entered in kHz.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 11, RX Maximum Audio Power Parameter 11, RX Maximum Audio Power This test parameter sets the rated audio-output power for the receiver so the software can determine the full-scale volume level of the meter screen displayed on the test set during testing.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 12, RX Set Radio Volume Parameter 12, RX Set Radio Volume This test parameter prompts the test operator to adjust volume on the radio during testing or allows the software to take the volume setting as it is. You can decrease testing time by setting this test parameter to 0=no if you are willing to let the tests run at the same volume (audio) level. The industry standard often requires adjusting volume to specific volume levels.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 13, RX Squelch Blocking Step Frequency Parameter 13, RX Squelch Blocking Step Frequency This test parameter sets the step-size to vary the audio frequency while testing receiver squelch blocking. For Example: If you want the audio frequency to be varied in 500 Hz steps during the receiver squelch-blocking test, enter 0.5 in the value column. The value is entered in kHz. It’s Used in the Following Test: TEST_16.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 14, RX Squelch Control Parameter 14, RX Squelch Control Depending upon how you set this test parameter, the test operator is either prompted to adjust the squelch control on the radio during testing, or the software is allowed to take the squelch setting where it is at.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 15, RX Squelch Preset Only Parameter 15, RX Squelch Preset Only This test parameter allows you to use the preset squelch setting on the radio, in which case, the test operator is not prompted to adjust the squelch setting. For radios without an adjustable squelch knob, you’ll want to set this test parameter to 1. For Example: If you want to use the receiver’s preset setting for squelch, enter 1 in the value column.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 16, RX Standard RF Input Level Parameter 16, RX Standard RF Input Level This test parameter sets the standard RF input level (which is the test set’s RF generator’s output level) that is used in receiver testing. For Example: The EIA standard specifies the standard input-signal level as 60 dB above the reference (usable) sensitivity. The reference sensitivity is specified for each RF band.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 17, RX Tolerance for Setting Volume Parameter 17, RX Tolerance for Setting Volume This test parameter sets a tolerance window for the maximum percentage of error allowed on the meter screen. The meter screen is displayed on the test set during testing for manually setting the radio’s volume. The tolerance for setting volume should be as accurate as the radio’s volume control will allow.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 18, RX Usable Sens Set and Measure Parameter 18, RX Usable Sens Set and Measure This test parameter allows you to choose how the test for usable sensitivity will be performed. For Example: Setting this test parameter to “1” causes the software to perform a pass/fail measurement of the receiver’s usable sensitivity.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 19, RX Usable Sensitivity SINAD Level Parameter 19, RX Usable Sensitivity SINAD Level This test parameter sets the test set RF generator’s output level to the standard signal-to-noise ratio (SINAD) which is used in receiver sensitivity testing. For Example: If your industry standard specifies the standard SINAD ratio as 12 dB, enter 12 in the value column. The value is entered in dB. It’s Used in the Following Tests: TEST_14.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 20, TX Audio Distn % Full Rated System Dev Parameter 20, TX Audio Distn % Full Rated System Dev This parameter specifies the maximum percent of full rated frequency deviation to use when testing audio distortion. For Example: If your industry standard specifies that Audio Distortion is measured at 60% of the maximum rated frequency deviation, enter 60 in the value column. The value is entered in percent.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameters 21-23, TX Audio Freq Response Start, Step, and Stop Frequency Parameters 21-23, TX Audio Freq Response Start, Step, and Stop Frequency The start frequency test parameter sets the lowest modulation frequency used for testing the transmitter’s audio frequency response. The step frequency test parameter sets the step size used to vary the modulation frequency for testing the transmitter’s audio frequency response.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 24, TX CD/CTCSS Available Parameter 24, TX CD/CTCSS Available This test parameter lets the test set know that the radio transmits a carrier modulated with a CTCSS tone code or CDCSS code word. Besides being used in the test shown below, this test parameter affects all transmitter tests by prompting the test operator to disable the TX tone squelch before continuing with testing.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 25, TX CD/CTCSS Control Parameter 25, TX CD/CTCSS Control This test parameter allows the transmitted CTCSS tone code or CDCSS code word to be controlled by the test operator.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 26, TX CD/CTCSS Filter 1 Opt Parameter 26, TX CD/CTCSS Filter 1 Opt This test parameter allows the CD/CTCSS filter (test set Option 010, 400 Hz High-Pass Filter) to be used by the test set if one is installed. If the CD/CTCSS filter is installed, “400 Hz HPF” appears in the AF Analyzer’s Filter 1 field.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 27, TX De-emphasis Parameter 27, TX De-emphasis De-emphasis refers to the network at the input of the test set’s AF Analyzer which is designed to restore the received, pre-emphasized FM signal. If this test parameter is turned on, a 750 µsec de-emphasis filter is activated.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 28, TX Dekey Between TX Tests Parameter 28, TX Dekey Between TX Tests This test parameter forces the test operator to de-key the radio between each transmitter (TX) test or allows the radio to transmit continuously.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 29, TX Mic Sens Set and Measure Parameter 29, TX Mic Sens Set and Measure This test parameter allows you to choose how the test for microphone sensitivity will be performed. For Example: Setting this test parameter to “0” causes the software to perform a pass/fail measurement of the microphone’s sensitivity.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 30, TX Modulation Limiting Sweep Step Freq Parameter 30, TX Modulation Limiting Sweep Step Freq This test parameter sets the step-size used to vary the modulation frequency for testing transmitter modulation limiting. For Example: If your industry standard determines that the modulation frequency in the modulation limiting test should be varied from 300 Hz to 3000 Hz and you want to measure only one step, enter 2.7 in the value column.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 31, TX Output Power @Low Switch Parameter 31, TX Output Power @Low Switch This test parameter allows you to test for transmitter output power with the power supply voltage set to its low-switch setting. For Example: If your radio has a high/low-switch setting and you want to test the transmitter for output power at the low switch setting, you would enter 1 in the value column, otherwise, enter 0 in the value column.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 32, TX User/System Key UUT Parameter 32, TX User/System Key UUT This test parameter allows you to determine if the test operator (user) keys the transmitter or if the test set (system) keys the transmitter during testing. Having the test set key the transmitter requires connections from the radio to the test set’s MIC/ACC connector (refer to chapter 2, "Using the Software/HP 8920B or HP 8920A FW Above Rev. A.14.00," on page 23).
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Parameter 33, XX Secure Frequency Info Parameter 33, XX Secure Frequency Info This test parameter allows you to secure the radio’s channels . This test parameter provides security for the radio by preventing the channel’s frequency from being seen on the test set’s display and from being printed in the test results.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit Descriptions (specifications) Pass/Fail Limit Descriptions (specifications) Pass/Fail Limits define the values a measurement’s result is compared against to determine if the UUT meets its specified standards. For information on editing Pass/Fail Limits, see "Customizing Testing," in chapter 2, on page 32. The list of pass/fail limits is arranged alphabetically.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 1, RX Audio Distn 17 dB Below Rated Power Pass/Fail Limit 1, RX Audio Distn 17 dB Below Rated Power This sets the pass/fail limits for testing a receiver’s audio distortion when the radio’s volume is set 17 dB below the rated output power. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • • Radio specification: Audio Distortion Industry standard: EIA/TIA-603, Section 2.1.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 2, RX Audio Distortion Pass/Fail Limit 2, RX Audio Distortion This defines pass/fail limit values for testing a receiver’s audio distortion when the radio’s volume is set to the standard input-signal level. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • • Radio specification: Audio Distortion Industry standard: EIA/TIA-603, Section 2.1.12, Audio Distortion.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 3, RX Audio Freq Resp Delta from 6 dB/Oct Pass/Fail Limit 3, RX Audio Freq Resp Delta from 6 dB/Oct This defines pass/fail limits for testing a receiver’s audio-frequency response, with squelch set to minimum and volume set to 50% of rated audio-output power.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 4, RX Audio Frequency Response Roll <0.5 kHz Pass/Fail Limit 4, RX Audio Frequency Response Roll <0.5 kHz This sets the pass/fail limits for testing a receiver’s audio-frequency-response roll off for measurements less than 0.5 kHz. Pass/Fail limits are determined from an application radio specification or industry standard, such as: • Radio standard: Audio Response • Industry standard: EIA/TIA-603, Section 2.1.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 5, TX Audio Frequency Response Roll >2.5 kHz Pass/Fail Limit 5, TX Audio Frequency Response Roll >2.5 kHz This sets the pass/fail limits for testing a transmitter’s audio-frequency-response roll off for measurements greater than 2.5 kHz. Pass/Fail limits are determined from an application radio specification or industry standard, such as: • Radio standard: Audio Response • Industry standard: EIA/TIA-603, Section 2.1.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 6, RX Audio Output @40% of Full Rated Dev Pass/Fail Limit 6, RX Audio Output @40% of Full Rated Dev This sets the pass/fail limits for testing a receiver’s audio sensitivity at 40% of full-rated deviation, with squelch set to minimum and volume set to maximum.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 7, RX CDCSS SINAD at Opening Pass/Fail Limit 7, RX CDCSS SINAD at Opening “CDCSS SINAD at opening” refers to the SINAD measured at the opening level of the squelch tone. This is used with Pass/Fail Limit 9, RX CT/CDCSS Opening Level to set the pass/ fail limits for testing a receiver’s CDCSS opening.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 8, RX CT/CDCSS FM Hum and Noise Pass/Fail Limit 8, RX CT/CDCSS FM Hum and Noise This sets the pass/fail limits for receiver hum-and-noise testing with CT/CDCSS present and the receiver un-squelched. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • Radio specification: Hum and Noise • Industry standard: EIA/TIA-603, Section 2.1.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 9, RX CT/CDCSS Opening Level Pass/Fail Limit 9, RX CT/CDCSS Opening Level The Continuous Tone-Controlled Squelch System (CTCSS) and Continuous Digital-Controlled Squelch System (CDCSS) opening level is the level of the RF signal applied to the receiver’s input (with the squelch tone on for CTCSS, or the code word input for CDCSS) that causes the radio to de-squelch.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 10, RX CTCSS SINAD at Opening Pass/Fail Limit 10, RX CTCSS SINAD at Opening “CTCSS SINAD at opening” refers to the SINAD measured at the opening level of the squelch tone. This is used with Pass/Fail Limit 9, RX CT/CDCSS Opening Level to set the pass/ fail limits for testing a receiver’s CTCSS opening.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 11, RX Hum and Noise Squelched Pass/Fail Limit 11, RX Hum and Noise Squelched This sets the pass/fail limits for receiver hum-and-noise testing, with squelch set to maximum. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • • Radio specification: Hum and Noise Industry standard: EIA/TIA-603, Section 2.1.11, Hum and Noise Ratio.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 12, RX Hum and Noise Unsquelched Pass/Fail Limit 12, RX Hum and Noise Unsquelched This sets the pass/fail limits for receiver hum-and-noise testing with squelch set to minimum. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • • Radio specification: Hum and Noise Industry standard: EIA/TIA-603, Section 2.1.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 13, RX Squelch Blocking Pass/Fail Limit 13, RX Squelch Blocking This is used with Pass/Fail Limit 16, RX Tight Squelch Sensitivity to set the pass/ fail limits for testing a receiver’s squelch blocking. The limits you set determine how much the receiver’s output is allowed to drop as a continuous signal level is applied and the modulation frequency is varied from 300 Hz to 3 kHz.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 14, RX Stand-by Current Drain Pass/Fail Limit 14, RX Stand-by Current Drain This sets the pass/fail limits for testing a receiver’s stand-by current drain (with squelch set to maximum). Pass/Fail limits are determined from an applicable radio specification, such as: • Radio specification: Maximum Battery Drain For Example: If your radio specification defines the maximum battery drain, while the radio is receiving, as 0.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 15, RX Threshold Squelch Sensitivity Pass/Fail Limit 15, RX Threshold Squelch Sensitivity This sets the pass/fail limits for testing audio-squelch sensitivity, with squelch and volume adjusted for the “threshold squelch” setting. Pass/Fail limits are determined from an applicable industry standard, such as: • Industry standard: EIA/TIA-603, Section 2.1.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 16, RX Tight Squelch Sensitivity Pass/Fail Limit 16, RX Tight Squelch Sensitivity This sets the pass/fail limits for testing a receiver’s audio-squelch sensitivity (in TEST_15. RX Audio Squelch Sensitivity and TEST_20. RX Quick Test), with squelch set to maximum and volume adjusted for the “threshold squelch” setting, and for testing squelch blocking (in TEST_16. RX Squelch Blocking).
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 17, RX Usable Sensitivity Pass/Fail Limit 17, RX Usable Sensitivity This sets the pass/fail limits for testing usable sensitivity (in TEST_14. RX Usable Sensitivity and TEST_20. RX Quick Test) and for testing the variation of sensitivity with signal frequency changes (in TEST_19. RX Variation of Sens with Freq).
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 18, RX Variation of Sens Delta Frequency Pass/Fail Limit 18, RX Variation of Sens Delta Frequency This sets the pass/fail limits for testing the variation of sensitivity with signal frequency, which is the change of input signal level required to maintain the standard signal-to-noise ratio (the usable sensitivity SINAD level) as a function of the signal frequency.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 19, TX Audio Distortion Pass/Fail Limit 19, TX Audio Distortion This sets the pass/fail limits for testing a transmitter’s audio distortion. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • • Radio specification: Audio Distortion Industry standard: EIA/TIA-603, Section 2.2.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 20, TX Audio Response Delta From 6 dB/oct Pass/Fail Limit 20, TX Audio Response Delta From 6 dB/oct This sets the pass/fail limits for testing a transmitter’s audio-frequency-response variation from a true 6 dB/octave pre-emphasis slope. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • • Radio standard: Audio Response Industry standard: EIA/TIA-603, Section 2.2.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 21, TX Audio Frequency Response Roll <0.5 kHz Pass/Fail Limit 21, TX Audio Frequency Response Roll <0.5 kHz This sets the pass/fail limits for testing a transmitter’s audio-frequency-response roll off for measurements less than 0.5 kHz. Pass/Fail limits are determined from an application radio specification or industry standard, such as: • Radio standard: Audio Response • Industry standard: EIA/TIA-603, Section 2.2.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 22, TX Audio Frequency Response Roll >2.3 kHz for 896-940M Pass/Fail Limit 22, TX Audio Frequency Response Roll >2.3 kHz for 896-940M This sets the pass/fail limits for testing a transmitter’s audio-frequency-response roll off for measurements greater than 2.3 kHz but less than 2.7 kHz for radio’s in the frequency range of 896-940 MHz.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 23, TX Audio Response Roll >2.5 kHz Pass/Fail Limit 23, TX Audio Response Roll >2.5 kHz This sets the pass/fail limits for testing a transmitter’s audio-frequency-response roll off for measurements greater than 2.5 kHz. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • • Radio standard: Audio Response Industry standard: EIA/TIA-603, Section 2.2.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 24, TX Audio Frequency Response Roll >2.7 kHz for 896-940M Pass/Fail Limit 24, TX Audio Frequency Response Roll >2.7 kHz for 896-940M This sets the pass/fail limits for testing a transmitter’s audio-frequency-response roll off for measurements greater than 2.7 kHz for radio’s in the frequency range of 896-940 MHz.
PAGE 170
Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 25, TX CT/CDCSS Deviation Pass/Fail Limit 25, TX CT/CDCSS Deviation This sets the pass/fail limits for testing a transmitter’s Continuous ToneControlled Squelch System (CTCSS) and Continuous Digital-Controlled Squelch System (CDCSS) deviation and is used as a reference value in the receiver CT/ CDCSS opening test (TEST_17. RX CTCSS/CDCSS Opening).
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 26, TX CTCSS Frequency Error Pass/Fail Limit 26, TX CTCSS Frequency Error This sets the pass/fail limits for testing transmitter’s Continuous-Tone-Controlled Squelch System (CTCSS) frequency error. Pass/Fail limits are determined from an applicable industry standard, such as: • Industry standard: EIA/TIA-603, Section 2.4.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 27, TX Current Drain Pass/Fail Limit 27, TX Current Drain This sets the pass/fail limits for testing a transmitter’s current drain.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 28, TX Deviation If Set and Measure Mic Sens Pass/Fail Limit 28, TX Deviation If Set and Measure Mic Sens If test Parameter 29, TX Mic Sens Set and Measure is set to “1”, this pass/fail limit sets the deviation for testing a microphone’s sensitivity.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 29, TX FM Hum and Noise Pass/Fail Limit 29, TX FM Hum and Noise This sets the pass/fail limits for testing a transmitter’s FM hum and noise. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • • Radio specification: FM Noise Industry standard: EIA/TIA, Section 2.2.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 30, TX Frequency Error Pass/Fail Limit 30, TX Frequency Error This sets the pass/fail limits for testing a transmitter’s frequency error. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • • Radio specification: Frequency Stability Industry standard: EIA/TIA-603, Section 2.2.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 31, TX Microphone Sensitivity Pass/Fail Limit 31, TX Microphone Sensitivity This sets the pass/fail limits for testing a transmitter’s microphone sensitivity. Microphone sensitivity is the nominal voltage measured at the input of the microphone which will cause full-rated system deviation of the transmitter. The value for full-rated system deviation is set by Parameter 2, RT Full Rated System Deviation.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 32, TX Modulation Limiting Pass/Fail Limit 32, TX Modulation Limiting This sets the pass/fail limits for testing a transmitter’s modulation limiting. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • • Radio specification: Modulation Deviation Industry standard: EIA/TIA-603, Section 2.2.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 33, TX Output Power Pass/Fail Limit 33, TX Output Power This sets the pass/fail limits for testing a transmitter’s output power at its normalpower setting. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • • Radio specification: RF Power Industry standard: EIA/TIA-603, Section 2.2.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 34, TX Output Power at High Supply Pass/Fail Limit 34, TX Output Power at High Supply This sets the pass/fail limits for testing the high-power setting for the radio’s external power supply (if one is used).
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 35, TX Output Power at High Supply Low SW Pass/Fail Limit 35, TX Output Power at High Supply Low SW This sets the pass/fail limits for testing the transmitter at its low-switch setting with the power supply set to its high-power setting. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • • Radio specification: RF Power Industry standard: EIA/TIA-603, Section 2.2.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 36, Output Power at Low Supply Pass/Fail Limit 36, Output Power at Low Supply This sets the pass/fail limits for testing the low-power setting for the radio’s external power supply (if one is used).
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 37, TX Output Power at Low Supply Low SW Pass/Fail Limit 37, TX Output Power at Low Supply Low SW This sets the pass/fail limits for testing the transmitter at its low-switch setting with the power supply set to its low-power setting. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • • Radio specification: RF Power Industry standard: EIA/TIA-603, Section 2.2.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 38, TX Output Power at Low Switch Setting Pass/Fail Limit 38, TX Output Power at Low Switch Setting This sets the pass/fail limits for testing a transmitter’s output power at its lowpower setting. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • • Radio specification: RF Power Industry standard: EIA/TIA-603, Section 2.2.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 39, TX Residual AM Hum and Noise Pass/Fail Limit 39, TX Residual AM Hum and Noise This sets the pass/fail limits for testing the transmitter’s residual AM hum and noise. Pass/Fail limits are determined from an applicable radio specification or industry standard, such as: • • Radio specification: Residual AM Hum and Noise Industry standard: EIA/TIA-603, Section 2.2.
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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions Pass/Fail Limit 39, TX Residual AM Hum and Noise 184 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\descrptn.
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Chapter 5 Reference (Alphabetical) 5 Reference (Alphabetical) This chapter provides detailed descriptions of the features and functions of the HP 11807A,E software. Topics are arranged alphabetically for quick, easy reference.
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Chapter 5, Reference (Alphabetical) Conventions Used Conventions Used Special presentations of text in this manual reflect the appearance of the item being referred to. Examples of these special presentations are: TESTS A key on the test set. Procedure: Characters displayed on the CRT display. k1 (Run Test) A USER key, in the key column next to the CRT. Run Test is displayed on the CRT. 0.000000 A field on the CRT where entries can be made. Titles of documentation are printed in italics.
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Chapter 5, Reference (Alphabetical) Copying Files Copying Files Files can be copied from one mass-storage device to another using IBASIC COPY commands. For example, to copy a file from an inserted memory card to the left drive of an external dual-disk drive with HP-IB address 700, press TESTS. Select IBASIC Cntrl from the SET UP TEST SET list (or IBASIC from the Test Function field). Position the cursor to the IBASIC command line and select it.
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Chapter 5, Reference (Alphabetical) Copying Files IBASIC is used when writing your own programs and is not explained in this manual. If you need to write your own IBASIC programs you may acquire the following manuals: • • HP 8920A • HP Instrument Basic User’s Handbook HP part number E2083-90000. • HP 8920A Programming Manual HP part number 08920-90220. HP 8920B • HP Instrument Basic User’s Handbook Version 2.0 HP part number E2083-90005. • HP 8920B Programming Manual HP part number 08920-90222.
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Chapter 5, Reference (Alphabetical) Data Collection (Saving and Retrieving Test Results) Data Collection (Saving and Retrieving Test Results) The software has the capability to save test results to an SRAM memory card, to a disk drive, or to a PC. Collection to a Memory Card or Disk You will have to make entries into the External Devices (Edit Config) screen to describe the type of data collection you are using. To configure External Devices entries: 1. Press TESTS 2.
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Chapter 5, Reference (Alphabetical) Data Collection (Saving and Retrieving Test Results) The test software supports data storage on Logical Interchange Format (LIF) and Disk Operating System (DOS) disk formats. Storage can be to any of the following file types: • ASCII files under LIF • BDAT files under LIF • HP-UX files under LIF • DOS files under DOS You will be specifying the file type with the entry you make into the Options field immediately below DATA C.
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Chapter 5, Reference (Alphabetical) Data Collection (Saving and Retrieving Test Results) See "Initializing a Disk" on page 198 if using a new disk. See "Initializing a Memory Card" on page 205 if using a new memory card. The file types under LIF can be used by the test set’s IBASIC controller and some HP workstations. The DOS format is required if you wish to use the disk with a PC.
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Chapter 5, Reference (Alphabetical) Data Collection (Saving and Retrieving Test Results) Retrieving Data from a Memory Card To retrieve the test results after they have been saved on an SRAM memory card, you will have to run an IBASIC program. The following is a program to transfer data from a memory card to a terminal emulator. You can type the program lines into the IBASIC command line from a terminal emulator. See "Configuration for Terminal or PC Operation" on page 195. To enter the data 1.
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Chapter 5, Reference (Alphabetical) Data Collection (Saving and Retrieving Test Results) NOTE: Difference between Run and Run Test The USER (Run) key, assigned as a default key on the TESTS (IBASIC Controller) screen, will start an IBASIC program that is resident in the test set’s memory.
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Chapter 5, Reference (Alphabetical) Data Collection (Saving and Retrieving Test Results) Table 9 FIELD Terminal Configuration Settings FIELD SETTING SETTING Terminal ID 2392A Esc Xfer(N) YES Local Echo OFF ASCII 8 Bits YES CapsLock OFF FldSeparator US Start Col 01 BlkTerminator RS Bell ON ReturnDef CR XmitFnctn(A) NO Copy SPOW(B) NO Type Ahead NO InhEolWrp(C) NO ROW Size 80 Line/Page(D) LINE Host Prmpt Char D1 InhHndShk(G) NO Horiz. Scroll. Incr.
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Chapter 5, Reference (Alphabetical) Data Collection (Saving and Retrieving Test Results) To set up for data 1. Press TESTS. collection to a 2. Select External Devices from the SET UP TEST SET list (or Edit Cnfg PC: from the Test Function field). 3. Position the cursor to the Calling Name field and select it. 4. Using the list of characters in the Choices menu, enter DATA C (next to Inst# 1): 1 DATA C 5. Position the cursor to the Addr field and select it. 6.
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Chapter 5, Reference (Alphabetical) Data Collection (Saving and Retrieving Test Results) Equivalent Front-Panel Control Characters The following table 11 lists the terminal/computer keystrokes that equate to frontpanel controls. Each equivalent character must be preceded by the Escape key. For example, to remotely access the CONFIGURE screen, you type Esc, C on your terminal/computer. (Be sure to use upper-case C for this example.) Alternate sequences for 5 commonly-used functions are also available.
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Chapter 5, Reference (Alphabetical) Data Collection (Saving and Retrieving Test Results) Table 11 Function Equivalent Front-Panel Control Characters Equiv. ESC Char. Function Equiv. ESC Char. Function Equiv. ESC Char. CANCEL ! REF_SET J INCR_SET k PERCENT MHZ_V ( METER K INCR_TIMES_10 l S_KHZ_MV ) AVG L DOWN m BACKSPACE - LO_LIMIT M UP n ENTER .
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Chapter 5, Reference (Alphabetical) Disks Disks Initializing a Disk If you are starting with a blank disk, you will have to initialize it to the format you have chosen. Disk drives require specific commands to perform initialization. The test set’s IBASIC commands to initialize some disks are described here. You should verify that the drive you are using can be controlled by the test set and that you are initializing a disk using a drive or PC that has a compatible format. To initialize a disk 1.
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Chapter 5, Reference (Alphabetical) Disks To enter the data 1. Press TESTS. retrieval program: 2. Select IBASIC Cntrl from the SET UP TEST SET list (or IBASIC from the Test Function field). 3. Position the cursor to the IBASIC command field (large field in the upper part of the display) and select it. From the list of characters in the Choices field, enter the following IBASIC program statements and commands. 4. Enter SCRATCH to delete the previous IBASIC program. Be sure it’s saved first. 5.
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Chapter 5, Reference (Alphabetical) Exiting a Program Exiting a Program Do not press RX or TX to exit the program. Selecting the RX TEST or TX TEST screen causes signal paths internal to the test set to be modified. If you exit the program to a screen other than RX TEST or TX TEST, the settings necessary to resume testing will be retained. After you have made the manual settings you want, press the DUPLEX key as a last step before continuing the software. This will cause the test set to be properly set up.
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Chapter 5, Reference (Alphabetical) HP-IB Control Annunciators HP-IB Control Annunciators The words, letters, and symbols at the top right corner of the CRT display indicate these conditions: • R indicates remote operation from an external controller or IBASIC program in the test set. This letter will be displayed while the software is running. • L indicates that the test set is listening, and is ready to receive a manual or remote command.
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Chapter 5, Reference (Alphabetical) Memory Cards Memory Cards Memory cards are inserted into the slot on the test set’s front panel. The memory card is powered by the test set while it is inserted. Arrows printed on the memory card and the test set’s front panel indicate the direction and orientation of card insertion.
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Chapter 5, Reference (Alphabetical) Memory Cards Three types of memory cards are available: • Static Random Access Memory (SRAM) • • One-Time Programmable (OTP) • • Once programmed with a suitable card programmer, OTP cards have read-only capability. OTP cards can be read with the test set, but cannot be programmed with the test set. Flash Memory • NOTE: SRAM cards have read and write capability. SRAM cards can be programmed and read with the test set. Flash cards have read and write capability.
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Chapter 5, Reference (Alphabetical) Memory Cards SRAM Memory Cards A Static Random Access Memory (SRAM) Card can be used to store test results and procedures you make. The following parts can be used.
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Chapter 5, Reference (Alphabetical) Memory Cards Memory Card Storage Space Procedures use 12-16 records each. A Library uses 20-35 records. A single library must be included on the card. A record is 256 bytes. Approximately 11 kilobytes of overhead is required on each card. Use the following formula to estimate the storage space needed: Storage Space(in kilobytes) = (Number of Procedures × 4.1) + 20 For example, if you want to save ten different procedures, you will need 61 kilobytes of memory.
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Chapter 5, Reference (Alphabetical) Memory Cards There are two ways to initialize a memory card to select the format. If you have a terminal emulator attached to the test set, you can type a command into the IBASIC command line. A second way to initialize a card is to run the ROM program RAM_MNG. To initialize an SRAM card using IBASIC 1. Press TESTS. 2. Select IBASIC Cntrl from the SET UP TEST SET list (or IBASIC from the Test Function field).
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Chapter 5, Reference (Alphabetical) Memory Cards Retrieving Data from a Memory Card To retrieve the test results after they have been saved on an SRAM memory card, you will have to run an IBASIC program. The following is program to transfer data from a memory card to a terminal emulator. You can type the program lines into the IBASIC command line from a terminal emulator. See "Configuration for Terminal or PC Operation" on page 195. To enter the data 1. Press TESTS. retrieval program: 2.
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Chapter 5, Reference (Alphabetical) Memory Cards NOTE: Difference between Run and Run Test The USER (Run) key, assigned as a default key on the TESTS (IBASIC Controller) screen, will start an IBASIC program that is resident in the test set’s memory. The USER (Run Test) key, assigned as a default key on the other TESTS screens, will load and run the program that is called from the Select Procedure Filename and Select Procedure Location entries on the TESTS (Main Menu) screen.
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Chapter 5, Reference (Alphabetical) Parameters Parameters Parameters are values you enter that optimize your use of the test software. Many of the parameters are determined by examining your test needs. Default values are set into the software. Some of these values are derived from standard methods of measurement and some are derived from the industry standard requirements. Load a Procedure and select the Test Parameters screen from the CUSTOMIZE TEST PROCEDURE list, to see the default values.
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Chapter 5, Reference (Alphabetical) Pass/Fail Limits (specifications) Pass/Fail Limits (specifications) Pass/Fail Limits are values you enter that set passing limits for tests. Default values are available in the test software. They have been derived from standard methods of measurement. Pass/Fail Limits do not have to be changed when you select a test or change the tests in your procedure. Each test has pass/fail limits that apply to it.
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Chapter 5, Reference (Alphabetical) Pausing or Stopping a TEST Pausing or Stopping a TEST To pause the program, press CANCEL. To stop the program, press SHIFT then CANCEL. This performs an IBASIC RESET operation. NOTE: Changing Settings while Paused If you make changes to instrument settings while the program is paused, subsequent operation may be unpredictable. Error messages may or may not be displayed. See "Exiting a Program" on page 200. To continue a 1. Press TESTS. paused program: 2.
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Chapter 5, Reference (Alphabetical) Printing Printing You can print any of the following: • Test results • TESTS screens • ”External Devices” (Edit Cnfg) • ”Order of Tests” (Edit Seqn) • ”Channel Information” (Edit Freq) • ”Pass/Fail Limits” (Edit Spec) • ”Test Parameters” (Edit Parm) How to Print (task There are five basic steps to printing listed below. A detailed description of each of these steps is at the end of this section. list) 1.
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Chapter 5, Reference (Alphabetical) Printing Printer Connection HP-IB Connection An HP-IB printer can be connected to the test set’s rear-panel HP-IB connector with an HP-IB cable. Serial Connection A serial printer can be attached to the serial port. See figure 1. Use the following RJ-11 pins for this connection.
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Chapter 5, Reference (Alphabetical) Printing Parallel Connection A parallel printer can be attached to the parallel port. Use the following figure 2 for pin information. Figure 2 Test Set Parallel Port Connections 214 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\referenc.
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Chapter 5, Reference (Alphabetical) Printing Configuring the Test Set for Printing If using a serial printer, you cannot use the serial port for other connections at the same time, such as Data Collection (saving test results). Serial port connections are shown earlier in this section. NOTE: Printer Setup Differences The HP 8920A,D had several firmware enhancements, which are standard in the HP 8920B.
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Chapter 5, Reference (Alphabetical) Printing To Setup Printer Using Any HP 8920B Or HP 8920A FW Above Rev A.14.00 1. Press TESTS 2. Select Printer Setup from the SET UP TEST SET list. 3. Position the cursor to Model and select the desired printer. 4. Position the cursor to Print Port and select the desired port. 5. (If HP-IB only) Position the cursor to Printer Adrs and enter the HP-IB address for your printer (0-30). 6.
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Chapter 5, Reference (Alphabetical) Printing The software already has an implied escape character for the first sequence, you need only to enter the escape sequence following the escape character. However, if you are linking two or more sequences together, you must use the ~ to indicate the escape character between each sequence. If the sequence exceeds the space allotted in the options field, you may continue with additional escape sequences in the next available Options field.
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Chapter 5, Reference (Alphabetical) Printing Table 14 Escape Sequence Definitions for HP Printers Escape Sequence Print Feature &l66P Sets page length to 66 lines &l72P Sets page length to 72 lines &l6D Sets lines per inch to 6 lines &l8D Sets lines to inch to 8 lines (s12h12v6T Selects 12 characters per inch 12/72 inch character height gothic typeface &a9L~&l6E Sets left margin to 9 characters top margin to 6 lines (s12h12v6T~&a9L~&l6E Selects 12 characters per inch 12/72 inch character he
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Chapter 5, Reference (Alphabetical) Printing To print TESTS screens: TESTS screens include: • ”External Devices” • ”Order of Tests” • ”Channel Information” • ”Pass/Fail Limits” • ”Test Parameters” The same general process is used to print the information for all of the above TESTS screens. 1. Make sure that your printer is properly connected and configured as explained earlier in this section. 2. Press TESTS. 3. Select the CUSTOMIZE TEST PROCEDURE screen of your choice. 4.
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Chapter 5, Reference (Alphabetical) Printing To Setup Printer Using HP 8920A FW Below Rev A.14.00 1. Press TESTS 2. Select Edit Cnfg from the Test Function field. 3. Position the cursor to the Inst# field and select it. 4. Rotate the knob until an empty Calling Name field appears, and select it. 5. Position the cursor to the Calling Name field and select it. 6. Using the list of characters in the Choices menu, enter the word Printer. Select Done when complete. 7.
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Chapter 5, Reference (Alphabetical) Printing To print test results 1. Make sure that your printer is properly connected and configured as explained earlier in this section. 2. Press TESTS. 3. Position the cursor to the Output Results To: field (or the Output Destination field). Pressing knob will toggle the underlined selection. Select to underline Printer. 4. Position the cursor to the Output Heading field and select it. 5.
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Chapter 5, Reference (Alphabetical) Printing How to send an Escape Sequence: 1. Press TESTS. 2. Select Edit Cnfg from the Test Function field. 3. Position the cursor to the Inst# field and select it. 4. Rotate the knob until an empty Calling Name field appears, and select it. 5. Position the cursor to the Calling Name field and select it. 6. Enter ESCAPE SEQ using the characters in the Choices menu. Select Done when you are finished. 7. Position the cursor to the Addr (address) field and select it. 8.
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Chapter 5, Reference (Alphabetical) Printing Table 15 Examples of Common Escape Sequences Escape Sequence Print Feature &l66P Sets page length to 66 lines &l72P Sets page length to 72 lines &l6D Sets lines per inch to 6 lines &l8D Sets lines to inch to 8 lines (s12h12v6T Selects 12 characters per inch 12/72 inch character height gothic typeface &a9L~&l6E Sets left margin to 9 characters top margin to 6 lines (s12h12v6T~&a9L~&l6E Selects 12 characters per inch 12/72 inch character height got
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Chapter 5, Reference (Alphabetical) Printing To print TESTS screens TESTS screens include: • ”Edit Cnfg” • ”Edit Seqn” • ”Edit Freq” • ”Edit Spec” • ”Edit Parm” The same general process is used to print the information for all of the above TESTS screens. 1. Make sure that your printer is properly connected and configured as explained earlier in this section. 2. Press TESTS. 3 Select the TESTS screen you desire. 4. Press k3 (Print All) and select it. 5.
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Chapter 5, Reference (Alphabetical) Procedures Procedures A procedure is a collection of test parameters, pass/fail limits and a testing order, saved in a file that customizes the test software to a specific application. You may save the file on a memory card or disk. You do not have to save a test sequence in a procedure. Each test can be standalone if desired. After you choose a procedure, you can choose which of the tests you want to run.
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Chapter 5, Reference (Alphabetical) Procedures To save a procedure: 1. Press TESTS. 2. Select Save/Delete Procedure from the CUSTOMIZE TEST PROCEDURE list (or Proc Mngr from the Test Function field). 3. Position the cursor to the Select Procedure Location (or Location) field and select it. 4. From the Choices menu, select the desired location. The media must be initialized before a file can be saved. To initialize an SRAM card (HP 8920B or HP 8920A,D firmware above revision A.14.
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Chapter 5, Reference (Alphabetical) Procedures Loading a Procedure A procedure can be loaded from storage media into the test set’s battery-backedup memory by doing the following. To load a procedure: 1. Press TESTS. 2. Position the cursor to the Select Procedure Location (or Location) field and select it. 3. From the Choices menu, choose the desired location where the procedure is stored and select: Card, ROM, RAM or Disk. 4.
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Chapter 5, Reference (Alphabetical) Procedures Securing a Procedure After you have set up your test software with a testing order, channel information, test parameters, and pass/fail limits, you may wish to secure it. This operation will prevent the viewing and changing of those functions. You can select the items you wish to secure or un-secure. An IBASIC ROM program is stored in the Test Set’s firmware to do this. You can secure the procedure that is supplied with the test software.
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Chapter 5, Reference (Alphabetical) Procedures To un-secure a procedure: To un-secure a procedure, you must know the pass number. 1. Press TESTS. 2. Position the cursor to the Select Procedure Location (or Location) field and select it. 3. From the Choices menu, select ROM. 4. Position the cursor to the Select Procedure Filename (or Procedure) field and select it. 5. From the Choices menu, select IB_UTIL (or SECURE_IT). 6. Press k1 (Run Test). 7.
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Chapter 5, Reference (Alphabetical) RAM RAM RAM disk is a section of internal memory that acts much like a flexible disk. Programs can be stored, re-stored, erased, and retrieved. The RAM disk is partitioned into four separate volumes; 0-3. Each volume is treated as a separate ‘disk’. You can also specify the size of each disk in 256-byte increments. The four RAM disk volumes are designated :MEMORY,0,0 to :MEMORY,0,3.
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Chapter 5, Reference (Alphabetical) RAM Initializing RAM Disks Each RAM disk volume must be initialized before it can be used. Volume 0 can be initialized using the RAM_MNG procedure stored on the internal ROM’s IB_UTIL menu. Volumes 1, 2, and 3 must be initialized from the IBASIC Cntrl screen. The optional ‘volume size’ in the following procedure lets you specify the memory area set aside for each disk in 256 byte blocks. Follow these steps to initialize volumes 1, 2, or 3: 1. Press TESTS. 2.
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Chapter 5, Reference (Alphabetical) Saving Tests Results Saving Tests Results See "Data Collection (Saving and Retrieving Test Results)" on page 189. 232 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\referenc.
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Chapter 5, Reference (Alphabetical) Serial Port Serial Port This 6-pin, RJ-11 serial port is used to input and output serial data. Serial data is used for entering programs, printing, and for sending test results to a connected controller, disk drive, or terminal. Operating Considerations The serial communications settings are defined on the I/O CONFIGURE screen. Ground is used with both IBASIC and all other serial connections. Transmit B and Receive B are exclusively used with IBASIC programs.
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Chapter 5, Reference (Alphabetical) Test Execution Conditions Test Execution Conditions In some situations, you may wish to change the way the software works when a test result is obtained. Test Execution Conditions allow you to do this. Test Execution Conditions are accessed from the SET UP TEST SET list on the TESTS (Main Menu) screen. Press TESTS, then select Execution Cond to display them. (They are displayed directly on the main TESTS screen in firmware below revision A.14.00).
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Chapter 5, Reference (Alphabetical) Test Execution Conditions If Unit-Under-Test Fails (If UUT Fails) You can select either: Continue or Stop Default:Continue If you set this to Stop, and a pass/fail result is F, the program will stop. Test Procedure Run Mode (Run Mode) You can select either: Continuous or Single Step Default:Continuous You can make tests pause at certain times.
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Chapter 5, Reference (Alphabetical) USER Keys USER Keys When you are using the test set, you will see the following USER keys assigned appear at times in the top right corner of the display. These keys are assigned to the hard keys k1 through k5. In many cases, these keys can be used as “shortcuts” instead of positioning the cursor and selecting. USER keys are sometimes referred to as softkeys. Clr Scr clears the test set’s CRT display. Continue continues the program after it has been paused.
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Chapter 5, Reference (Alphabetical) USER Keys Run Test loads and runs the program that is called from the procedure that has been entered into the TESTS screen Select Procedure Filename: entry. If the program is already loaded into the test set’s memory, it will be started. Save Proc is used to save the specified procedure. Sngl Step steps the IBASIC program one line at a time. This is different from Continuous/Single Step run mode. See "Test Execution Conditions" on page 234.
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Chapter 5, Reference (Alphabetical) USER Keys 238 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\referenc.
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6 Chapter 6 Problem Solving Problem Solving 239
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Chapter 6, Problem Solving If you have a problem testing your radio If you have a problem testing your radio This section contains information for solving some of the most common problems related to using the HP 11807A,E radio-test software. All problems in this section have a single obvious symptom (shown in bold typeface at the top of each page), but many possible causes (listed in order from the most probable cause to the least probable cause).
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Chapter 6, Problem Solving If the test procedure doesn’t run on an test set If the test procedure doesn’t run on an test set ❒ Check to see that the memory card is correctly inserted into the test set. ❒ Check to see that a test procedure file has been loaded into the test set. In the upper left corner of the TESTS (Main Menu) screen, a file name should be seen in the Select Procedure field. If the field is blank, then a test procedure file has not been loaded. To load a test procedure file: 1.
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Chapter 6, Problem Solving If the HP 11807A,E program was incorrectly loaded If the HP 11807A,E program was incorrectly loaded An error message like “Structures improperly matched” or “Improper context terminator” appears. It takes 2-4 minutes to load an HP 11807A program when k1 (Run Test) is first pressed. It takes approximately 15 seconds to load an HP 11807E program. Thereafter, it takes only a few seconds to run.
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Chapter 6, Problem Solving If the printer does not print the test results If the printer does not print the test results ❒ Check that the printer is turned on. ❒ Check that the HP-IB, parallel, or serial cable from the test set to the printer is connected. If have firmware below revision A.14.00 OR you are using software with Revision A.xx.xx 1. Press TESTS. 2. Check that Printer was selected as the Output Destination in the Test Execution Conditions. 3.
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Chapter 6, Problem Solving If the printer does not print the test results If you have an HP 8920B or HP 8920A,D with firmware above revision A.14.00 AND you are using software with Revision B.xx.xx 1. 2. 3. 4. Press TESTS. Select Printer Setup from the SET UP TEST SET list. Check that Printer was selected in the Output Results To:. Check that the test set is correctly configured for HP-IB or serial printing: a. Select Model and choose the most compatible printer model from the Choices menu. b.
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Chapter 6, Problem Solving If the FM radio fails the audio tests If the FM radio fails the audio tests ❒ Check the specifications for the FM radio to make sure they match with those entered in the software Pass/Fail Limits. ❒ Check the audio connections from the FM radio to the test set. Refer to "Making a Connection" in chapter 2 on page 29 for a diagram showing the correct connections. ❒ Check the FM radio to make sure the microphone is not active and picking up ambient noise.
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Chapter 6, Problem Solving If radio volume can’t be set on the test set’s meter screen If radio volume can’t be set on the test set’s meter screen ❒ Check that the meter needle on the test set’s meter screen moves when you turn the radio’s volume knob. If the meter needle doesn’t move make sure the radio is powered on. ❒ Check that the radio is correctly connected to the test set. Refer to "Making a Connection" in chapter 2 on page 29 for a diagram showing the correct connections.
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Chapter 6, Problem Solving If your radio fails CTCSS/CDCSS tests or the tests don’t run If your radio fails CTCSS/CDCSS tests or the tests don’t run ❒ Check the test parameters for setting CTCSS/CDCSS squelch to be sure they are correctly set up. Incorrect settings for any one of these test parameters will affect how the test runs. 1.
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Chapter 6, Problem Solving If your radio fails CTCSS/CDCSS tests or the tests don’t run ❒ Check the Channel Information menu to see if the CTCSS frequency or tone code, or CDCSS code word is set up in the appropriate columns. 1. Enter a CTCSS frequency, for example, 91.5 Hz as “CT FR91.5”, in both RX and TX channel information columns, or 2. Enter a CTCSS tone code, for example, “ZZ” for 91.5 Hz as “CT ZZ” in both RX and TX channel information columns.
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Chapter 6, Problem Solving If your radio fails CTCSS/CDCSS tests or the tests don’t run Table 17 CTCSS Tone Codes Tone Code Frequency (Hz) Tone Code Frequency (Hz) 2A 114.8 — 233.6 2B 118.8 — 241.8 3Z 123 — 250.3 3A 127.
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Chapter 6, Problem Solving If your radio fails CTCSS/CDCSS tests or the tests don’t run Table 18 250 CDCSS Code Words Octal Code Octal Code Octal Code Octal Code 125 466 265 734 131 503 271 743 132 506 306 754 134 516 311 S:\hp11807a\OPT001\USRGUIDE\BOOK\chapters\problems.
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Chapter 6, Problem Solving If you can’t get the data-collection function to work If you can’t get the data-collection function to work ❒ Check that you have DATA C entered in the TESTS (External Devices) (or Edit Config) menu. 1. Press TESTS. 2. Select the External Devices screen, from the SET UP TEST SET list (or Edit Config from the Test Function field). 3. Position the cursor to the Calling Name field, push the knob and enter: DATA C.
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Chapter 6, Problem Solving If you can’t get the data-collection function to work ❒ Check the test set to make sure it’s in the controller mode if you are using an external disk drive. 1. Access the I/O CONFIGURE screen from the More field in the To Screen menu. 2. Position the cursor to the Mode field and select Control. NOTE: When the test operator is prompted to enter a file name where data is to be stored, the protocol for the mass-storage device being used must be followed.
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Glossary CANCEL A key used to pause (stop) the IBASIC program running in the test set. card Refers to the memory card containing the procedures for testing the unit-under-test. Choices Refers to a field in the lower right of the screen that displays several possible functions for selection. Continue Proceed with the IBASIC software program if it has been stopped (paused). CS Carrier Squelch cursor Refers to the brightened region of the screen used to indicate the field/function currently being accessed.
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Glossary key (USER keys) Keys refer to any of the push buttons on the front panel of the test set. The USER keys are a specific grouping of keys labeled k1 tok5 which perform the associated numbered function in the action field located in the upper right of the screen. The USER keys are user programmable. knob The large tuning dial for cursor control located in the center of the test set front panel.
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Glossary pause Using the CANCEL key pauses the running of IBASIC software in the test set and allows access to the keyboard functions. CONTINUE allows the software to proceed. peak+/- max A detector in the test set that measures and computes the maximum of the absolute value of the positive and negative excursions of the measurement. For example, when an FM waveform with a +10 kHz and −9 kHz deviation is applied, 10 kHz will be displayed. PRESET Sets the test set to its initial power-up state.
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Glossary store Store and save are used synonymously and refer to putting data or software on some memory device, such as card, RAM. tests Tests are a collection of measurements (or a series of other tests) which verify a particular specification value or operation of the UUT. A sequence of tests are contained in a test procedure. TESTS screen The screen accessed by pressing the TESTS key. It is used to customize and execute (run) all automated testing. Also referred to as the “Main Menu”.
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Index Numerics 1-800 help line, 21 for the receiver, 118 for the transmitter, 133 pre-emphasis, 164 step size, 118, 133 audio-frequency response test for the transmitter, 95 audio-output power, 147 set the rated, 123 audio-response roll >2.
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Index B battery drain, 158, 171 BDAT file type, 190 blocking capacitor for dc signals, 245 258 C CANCEL, 211, 253 card how to insert, 28, 62 carrier modulated with a CTCSS tone or CDCSS code word, 134 carrier frequency, 92 carrier power output rating, 177, 179, 181, 182 carrier-frequency stability, 174 CAT IBASIC command, 187 CDCSS available for the transmitter, 134 CDCSS available/control for the receiver, 120 CDCSS code word, 121 carrier modulated with a, 134 to be controlled by, 135 CDCSS code-word ta
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Index CTCSS modulation, 169 CTCSS opening, 169 CTCSS opening level, 153 CTCSS opening test for the receiver, 107 CTCSS parameters, 247 CTCSS SINAD at opening, 154 CTCSS squelch if the radio uses, 135 CTCSS tests fail, 247 CTCSS tone code carrier modulated with a, 134 to be controlled by, 135 CTCSS tone-code table, 248 current required by FM radio, 91 current drain stand-by, 91 current-drain for the transmitter, 171 current-measuring circuit, 91 cursor, 253 customizing testing, 32, 66 D data collection des
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Index F Factory Hot Line, 21 field, 253 selecting a, 186 file name disk example, 198 DOS withextensions, 191 file types ASCII, 190 BDAT, 190 DOS, 190 HP-UX, 190 files copying, 187 filter 400 Hz HPF, 136 750 mu sec de-emphasis, 137 for CDCSS tests, 247 for CTCSS or CDCSS, 136 for CTCSS tests, 247 filter, HPF for TX audio distortion, 96 for TX FM hum and noise, 98 for TX microphone sensitivity, 97 for TX residual AM hum and noise, 99 flash memory cards, 203 FM current from power supply, 91 FM hum and noise,
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Index I IBASIC, 253 copying files, 187 errors, 240 initializing a disk, 198 initializing RAM, 231 retrieving data from a card, 192, 207 retrieving data from a disk, 198 TESTS screen, 32, 66 IBASIC commands entering from a terminal, 187 If Unit-Under-Test Fails, 54, 235 If UUT Fails, 235 improper context terminator error, 241, 242 Init Card, 236 initialized when the test set is, 117 initializing, 253 initializing a disk, 198 initializing an SRAM memory card, 205 initializing RAM disks, 231 Insrt Stp, 236 L
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Index modulation limiting test for the transmitter, 94 262 N No, 236 noise level, AM Hum, 183 nominal (normal) power-supply voltage, 117 nominal supply voltage, 93 O octal code table of CDCSS code words, 249 On UUT Failure, 87 operating errors, 240 option 010 400 Hz HPF, 136 Optional RAM message, 242 order of tests printing, 212 saving, 226 ordering upgrades, 18 OTP memory cards, 203 OTP card, 254 Output Destination, 87, 234 Output Heading, 54, 87, 234 output power at high supply, 178 at low supply, 180
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Index P Page Down, 236 Page Up, 236 parallel printer connections, 214 parameters, 254 editing values, 48, 81, 209 for CDCSS squelch, 247 for CTCSS squelch, 247 for setting radio volume, 246 general description, 48, 81, 209 printing, 212 saving, 50, 83, 209, 226 securing, 228 part numbers memory card battery, 204 software memory cards, 16 SRAM Memory Cards, 204 pass number, 228 pass/fail limits, 254 default values, 144 descriptions, 144 editing values, 45, 78, 210 general description, 45, 78, 210 printing,
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Index R radio adjust the squelch control, 126 channel security, 143 connecting, 28, 62 dekey between TX tests, 138 keying, 142 microphone sensitivity, 139 operator to de-key, 138 security, 143 squelch setting, 127 transmit continuously, 138 radio power-supply voltage normal value, 117 radio sensitivity for squelch, 123 radio squelch is adjusted, 119 is adjusted during testing, 123 radio standards for FM, 90 radio volume can’t be set, 246 control, 129 for the receiver is set, 124 is adjusted, 119 is adjuste
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Index S save, 255 SAVE IBASIC command, 187 Save Proc, 236 SAVE registers lost, 242 saving procedure, 50, 83 test procedure, 50 test results, 189 saving a procedure, 225 secure frequency information, 143 SECURE IT ROM program, 228 securing a procedure, 228 security for the radio, 143 select, 186, 255 sensitivity audio, 119 audio squelch, 160 for the microphone, 172 microphone, 97 microphone, set and measure, 139 reference, 128 testing, 131 threshold squelch, 154 usable set and measure, 130 sequence changing
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Index T Take It, 236 terminal emulator, 198 configuration, 195 DataStorm Technologies, Inc.
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Index U upgrades,ordering, 18 usable sensitivity, 109, 128 for the receiver, 130, 131, 161 iterative measurement of, 130 SINAD level, 130 usable sensitivity test for the receiver, 104 USER keys, 186, 236, 256 user/system key the UUT for the transmitter, 142 UUT keyed by user or the test set, 142 V variation of sensitivity with signal frequency, 161 with signal frequency change, 162 variation of sensitivity test for the receiver, 109 voltage for extreme measurements, 93 high supply, 115 low supply, 116 whe