Keysight Technologies N9340B, User Manual

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Making Measurements

Analysis the Demodulated Signals
74
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 4-24 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
Demod-
ulation Analysis
, [ENTER], {FM}.
3 Press {Carries Freq} > [100] > {MHz} to set the carrier
frequency.
4 Set the attenuation state to Auto (default):