210 Chapter 6
Analog Modulation
Configuring ΦM
Configuring ΦM
Using this procedures, you will learn how to create a phase-modulated RF carrier.
Setting the RF Output Frequency
1. Press Preset.
2. Press
Frequency > 3 > GHz.
Setting the RF Output Amplitude
Press Amplitude > 0 > dBm.
Setting the FM Deviation and Rate
1. Press the FM/ΦM hardkey.
2. Press the
FM ΦM softkey.
3. Press
FM Dev > .25 > pi rad.
4. Press
FM Rate > 10 > kHz.
The signal generator is now configured to output a 0 dBm, phase-modulated carrier at 3 GHz with a 0.25 p
radian deviation and 10 kHz rate. The shape of the waveform is a sine wave. (Notice that sine is the default
for the
FM Waveform softkey. Press More (1 of 2) to see the softkey.)
Activating FM
1. Press FM Off On.
2. Press
RF On/Off.
The FM and RF ON annunciators are now displayed. This indicates that you have enabled phase modulation
and the signal is now being transmitted from the RF OUTPUT connector.
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