Take Ref Trace Description - HP 8591C User Manual

Procedure
A reference trace measurement can be made at any point in the system that
you want to use as the "reference." For example, typical reference spectrums
can be set up at the output of the headend or AML hub. Thirty-two or more
reference traces can be stored.
1. Press the following analyzer keys:
2. Set the start and stop frequencies of the analyzer to include all channels
Main 1 of 3 Main 2 of 3
SYSTEM FRC) RSP
being tested in the system.
Press ENTER STRT FRQ , then enter the lowest channel frequency.
l
Press ENTER STOP FRQ , then enter the highest channel frequency.
l
For your convenience when repeating this setup, save this analyzer state
for later recall.
"EAK
SLOW
Channel Measurements Menu Map and Softkq Descriptions
Channel Measurements Softkey Function Descriptions
AT 29 dB
2 SEC (GENERAL
SWEEP SEC (HELPS SMOOTH
: :
Figure 5-11. Fast and Slow Sweep
SCRAMBLING)
:
STOP 425.0 MHz
5 - 2 3