User`s guide
Table Of Contents
- Title Page
- Contents
- Getting Started
- Introduction and Measurement
- Phase Noise Basics
- Expanding Your Measurement Experience
- Starting the Measurement Software
- Using the Asset Manager
- Using the Server Hardware Connections to Specify the Source
- Setting GPIB Addresses
- Testing the 8663A Internal/External 10 MHz
- Testing the 8644B Internal/External 10 MHz
- Viewing Markers
- Omitting Spurs
- Displaying the Parameter Summary
- Exporting Measurement Results
- Absolute Measurement Fundamentals
- Absolute Measurement Examples
- Residual Measurement Fundamentals
- What is Residual Noise?
- Assumptions about Residual Phase Noise Measurements
- Calibrating the Measurement
- Measurement Difficulties
- Residual Measurement Examples
- FM Discriminator Fundamentals
- FM Discriminator Measurement Examples
- AM Noise Measurement Fundamentals
- AM Noise Measurement Examples
- Baseband Noise Measurement Examples
- Evaluating Your Measurement Results
- Advanced Software Features
- Reference Graphs and Tables
- Approximate System Noise Floor vs. R Port Signal Level
- Phase Noise Floor and Region of Validity
- Phase Noise Level of Various Agilent Sources
- Increase in Measured Noise as Ref Source Approaches DUT Noise
- Approximate Sensitivity of Delay Line Discriminator
- AM Calibration
- Voltage Controlled Source Tuning Requirements
- Tune Range of VCO for Center Voltage
- Peak Tuning Range Required by Noise Level
- Phase Lock Loop Bandwidth vs. Peak Tuning Range
- Noise Floor Limits Due to Peak Tuning Range
- Tuning Characteristics of Various VCO Source Options
- 8643A Frequency Limits
- 8644B Frequency Limits
- 8664A Frequency Limits
- 8665A Frequency Limits
- 8665B Frequency Limits
- System Specifications
- System Interconnections
- PC Components Installation
- Overview
- Step 1: Uninstall the current version of Agilent Technologies IO libraries
- Step 2: Uninstall all National Instruments products.
- Step 3: Install the National Instruments VXI software.
- Step 4: Install the National Instruments VISA runtime.
- Step 5: Install software for the NI Data Acquisition Software.
- Step 6: Hardware Installation
- Step 7. Finalize National Instruments Software Installation.
- Step 8: System Interconnections
- Step 9: Install Microsoft Visual C++ 2008 Redistributable Package use default settings
- Step 10: Install the Agilent I/O Libraries
- Step 11: Install the E5500 Phase Noise Measurement software.
- Step 12: Asset Configuration
- Step 13: License Key for the Phase Noise Test Set
- Overview
- PC Digitizer Performance Verification
- Preventive Maintenance
- Service, Support, and Safety Information
- Safety and Regulatory Information
- Safety summary
- Equipment Installation
- Environmental conditions
- Before applying power
- Ground the instrument or system
- Fuses and Circuit Breakers
- Maintenance
- Safety symbols and instrument markings
- Regulatory Compliance
- Declaration of Conformity
- Compliance with German noise requirements
- Compliance with Canadian EMC requirements
- Service and Support
- Return Procedure
- Safety and Regulatory Information
AM Noise Measurement Fundamentals
11
Agilent E5505A User’s Guide 299
between –30 and –60 dB below the carrier with a modulation rate between
10 Hz and 20 MHz.
To check the AM performance of the source, measure the carrier-to-sideband
ratio of the AM at the source output with a modulation analyzer. See
Figure 232.
4
Enter the carrier-to-sideband ratio and offset frequency, then measure the
calibration constant. See Figure 233.
5
Remove the AM source and reconnect the DUT.
6
Measure noise data and interpret the results.
NOTE
The carrier-to-sideband ratio for AM is:
C
sb
-----
C
b
----
20
percentAM
100
-----------------------------
log 6dB==
Figure 232 Measuring carrier-to-sideband ratio
Figure 233 Measuring the calibration constant
E5505a_meas_car_side_ratio
02 Mar 04 rev 1
Source
Modulation
analyzer
DUT with AM
E5505a_meas_cal_constant
02 Mar 04 rev 1
AM detector
Noise
input
Test set