Specifications

Chapter 16 255
Application Programs
Basic Measurement
16. Application Program
key after completion of preparation. If any other key is input, the
program is aborted. The subprogram FNMessage is explained later.
Lines 490 - 510 Returns the E4991A to the default status.
Lines 550 - 610 Sets the sweep conditions. In addition, sets the trigger source to the
GPIB trigger.
Lines 650 - 740 Display traces 1, 2, and 3, and sets the measurement parameter and
display format for each trace. In addition, the three traces are
superimposed and displayed in one window.
Lines 800 - 850 Confirms that the calibration function is set on and, if it is set on,
prompts whether to carry out another calibration. If any key other than
the [y] key is input, the calibration is skipped.
Lines 890 - 900 Sets the calibration kit to the attached 7-mm calibration kit and sets the
calibration data measurement point to the fixed frequency point/fixed
power point.
Lines 940 - 1010 Measures open/short/load calibration data. Refer to “Example program
for execution of calibration” on page 78 for details on the subprogram
FNCal.
Lines 1030 - 1070 Waits for the input on whether to execute low-loss capacitor
calibration. If the [y] key is entered, low-loss capacitor calibration data
is measured. If any other key is entered, low-loss capacitor calibration
is skipped.
Lines 1090 - 1130 A calibration coefficient is calculated based on the calibration data
obtained, and calibration is enabled.
Lines 1220 - 1260 Prompts the connection of the 16197A test fixture and waits for input
of the [y] key after connection. If any other key is entered, the program
is aborted. Next, sets the test fixture to be used to the 16197A.
Line 1340 Sets the fixture compensation data measurement point to the fixed
frequency point/fixed power point.
Lines 1380 - 1420 Measures the open/short compensation data. Refer to “Example
program for execution of fixture compensation” on page 97 for details
on the subprogram FNFixt_comp.
Lines 1440 - 1480 Calculates the compensation coefficient based on the fixture
compensation data obtained, and fixture compensation is enabled.
Lines 1550 - 1560 Prompts connection of the sample to the electrode of the test fixture
and waits for input of the [y] key after connection. If any other key is
entered, the program is aborted.
Lines 1640 Clears the status byte register and the operation status event register.
Lines 1650 - 1660 If the operation status condition register bit 4 transits from 1 to 0
(negative transit), the operation status event register bit 4 is set to 1.
Lines 1670 - 1680 Sets the operation status event register bit 4 and the status byte register
bit 7 to be enabled.
Lines 1690 - 1700 Sets the branch on which the SRQ interrupts and sets the SRQ
interruption to be enabled.
Lines 1720 - 1750 Triggers and executes a sweep once and then waits for completion of
the sweep.