HP 8753E User Manual page 107

b. To uncouple the channel stimulus so that the channel power will be uncoupled, press:
This will allow you to separately increase the power for channel 2 and channel 1,
so that you can observe the gain compression on channel 2 while channel 1 remains
unchanged.
c. 'lb display the ratio of channel 2 data to channel 1 data on the channel 2 display, press:
This produces a trace that represents gain compression only.
7.
8 .
9 .
10. Increase the power until you observe approximately 1 dB of compression on channel 2,
using the step keys or the front panel knob.
11. To locate the worst case point on the trace, press:
CHZ STfiRT
. . . . . . . . . . . . . . . . . . . .
13. lb place the marker eax.ct& on a measurement point, press:
change the scale to 1 dB per division.
MRG 1 8
I
I I
t
MHz
REF 0 dB
I I I
I
S T O P 1 000. 000 000 MHz
pressing: