3 Functions and Measurements
66 N9342C/43C/44C User’s Guide
6 Set the AM depth limit and turn on the limit
function:
Press [Limits] > {AMod Depth UP} > [51] > {%} >
{AMod Depth Low} > [49] > {%} > {Limits on}
The red value in the result indicates the
modulated AM depth exceeds the limits set as
above.
Figure 3-25 AM modulation analysis
FM Modulation Analysis
Please refer to the procedures below for the FM
modulation 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 modulation analysis function.
Press [MODE], {Modulation Analysis}, {FM}.
3 Press [Freq] > [100] > {MHz} to set the carrier
frequency.
4 Set the attenuation state to Auto (default):
Press {Attenuation Auto}
5 Press [Disp] > {Y Scale} > {Scale Coupling On} to set
the Y scale auto coupling.
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