5-7
Optimizing Measurement Results
Maintaining Test Port Output Power During Sweep Retrace
Maintaining Test Port Output Power During Sweep Retrace
During standard operation, the analyzer provides output power during its forward
frequency sweep, but may not provide output power during its sweep retrace. If the device
under test (such as an amplifier with AGC circuitry) requires constant power, then you can
set the analyzer to maintain test port output power during its sweep retrace.
To activate this feature, press . The analyzer
now maintains test port output power during sweep retrace.
NOTE On the 8722ET/ES only, retrace power will be lost at the point when the
sweep crosses the frequency boundary of 20 GHz.
NOTE The frequency sweep of the network analyzer is such that when it reaches
2.55 GHz, it momentarily jumps to 6.35 GHz before returning to 2.55 GHz
and continuing the rest of the sweep. This discontinuity in the frequency
sweep may be of concern to those making measurements of frequency
sensitive amplifiers having AGC circuitry.
System
CONFIGURE
RETRCE PWR ON