Technical data

85108L System Manual
Operation
Pulsed-RF Measurements Overview
3-19
Frequency Domain Using Frequency List
In the preceding measurement calibration procedure, it is necessary to perform a separate
calibration for each pulse profile frequency. This is not a problem for simple response-only
calibrations. But, when accuracy considerations require the use of 1-Port or 2-Port calibrations,
connecting the necessary sequence of standards repeatedly can be tedious. As an alternative, the
frequency list feature allows the standards to be connected once for all pulse profile frequencies.
Perform the calibration as follows:
1. Press
DOMAIN, then [FREQUENCY] to select the frequency domain.
2. If the W annotation is not displayed, the wideband detector must be selected before proceeding.
Press:
SYSTEM, [MORE], [PULSE CONFIG], [DETECTOR: WIDE BW].
3. Press
STIMULUS MENU, [MORE], then [EDIT LIST] to display the Edit List menu. Create a segment
for each pulse profile frequency to be measured. Each segment is defined such that the start and
stop frequencies are identical and the number of points in each segment is the number of points
to be displayed in the pulse profile measurement. For example, the following sequence creates a
frequency list to measure four pulse profile frequencies of 51 points each.
Press
[ADD], START, .5, G/n, [NUMBER of POINTS], 51, x1, [DONE].
Press
[ADD], START, 1.0, G/n, x1, [DONE]. Press [ADD], START, 1.5, G/n, x1, [DONE].
Press
[ADD], START, 2.0, G/n, x1, [DONE].
4. Press
[DONE], then [FREQUENCY LIST]. The frequency list will be measured.
The display will be similar to Figure 3-14. Proceed with the appropriate measurement
calibration.
Figure 3-14 Frequency List Display During Measurement Calibration