User`s guide

4 Making Measurements
74 N9340B User’s Guide
4 Set the attenuation state to Auto (default):
Press {More 1 of 3} > {More 2 of 3} > {Attenuation Auto}
> {More 3 of 3}
5 Press {Y Scale} > {Auto Scale} > {Return} to set the Y
scale.
6 Set the AM depth limit and turn on the limit
function:
Press {More 1 of 3} > {Limits} > {AM Depth UP} > [51]
> {%} > {AM Depth Low} > [49] > {%} > {Limits on}
The red value in the result indicates the
demodulated AM depth exceeds the limits set as
above.
Figure 4-25 AM demodulation analysis
FM Demodulation Analysis
Please refer to the procedures below for the FM
demodulation analysis:
1 Connect the signal generator to RF IN connector
and turn on the signal generator’s FM and RF
output.
2 Turn on the FM demodulation analysis function.
Press [MODE], Rotating the knob to highlight
Demodulation Analysis, [ENTER], {FM}.