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A-74 37xxxE OM
C ALPHABETICAL LISTING
MENU DESCRIPTION GPIB COMMAND
DATA ENHANCEMENT None
AVERAGING
XXXX MEAS.
Averages the measured data over time, as follows:
1. The sweep stops at the first frequency point and takes a
number of readings, based on the selected number of
points.
2. The program averages the readings and writes the
average value for that frequency point in the displayed
graph.
3. The sweep then advances to the next sequential
frequency point and repeats the process.
AVG; AVG?
AVERAGING TYPE
POINT-BY-POINT Averages the point-by-point up to the number of averages. PTAVG; SWAVG?
SWEEP-BY-SWEEP Averages the sweep-by-sweep up to the number of
averages.
SWAVG;
SWAVG?
RESET AVG COUNT
XXXX SWEEP(S)
Zeroes the counter used for sweep averaging. RSTAVG
SAMPLERS USED
PER SWEEP
X SAMPLERS
In the normal mode of operation, three samplers are used
per forward or reverse sweep; two test samplers and a
reference sampler. This results in both transmission and
reflection parameters simultaneously.
When a device such as a filter with a deep reject-band is
measured, having both test samplers on reduces the
measurement dynamic range. A higher noise floor in the
reject band of the filter is observed. Selecting two samplers
per sweep turns off one of the test samplers. This
eliminates channel interaction and thereby improves the
dynamic range.
The drawbacks of using two sampler per sweep are a
doubling of measurement time, as two complete
one-direction sweeps are needed for both transmission and
reflection parameters.
SAMP2; SAMP3;
SAMP?
RESUME CAL
PRESS <ENTER>
TO SELECT
Pressing the Enter key implements your menu selection
and returns you to the calibration setup or sequence.
None
PRESS
<AVG/SMOOTH MENU>
TO RESET AVG COUNT
Menu Cal_EM, Enhancement Menu for Calibration