To Analyze A Transient Signal With Demodulation - Agilent Technologies 89410A Operator's Manual

To analyze a transient signal with demodulation

This procedure analyzes the frequency and amplitude variations of the
transient signal with demodulation. It assumes that the steps in "To set up
transient analysis" have been performed. If not, do so before beginning.
1.
If you just finished the setup procedure, go to step 2 (don't perform this step).
If you just finished the time gating analysis, go back to main time:
Press [ ], [
Time gate off
2.
Turn on FM demodulation:
Press [
Instrument Mode
[ ], [
demod type
Instrument Mode
Press [
demodulation setup
Press [ ] to simulate a transient and take data.
Pause|Single
3.
Now rescale to examine the results:
Press [ ], [
A Auto Scale
Press [ ], [
B Ref Lvl/Scale
The display should appear as shown below.
FM demodulation analysis. The bottom trace shows the frequency
variation in the transient signal. Comparing it with the time signal
in the previous figure shows that demod results are meaningless during
periods of no signal.
]
], [ ] (with option AYH, press
Analog Demodulation
], [ ], [
Analog Demodulation
], [ ], [ ].
ch1 result FM
].
], [ ], 200, [
Y per div exponent
Characterizing a Transient Signal
).
Return]
], 3, [ ].
Hz
3-5