Fundamental Operation
Configuring Analog Modulation (PSG-A Series Only)
Chapter 2 39
3. Press
ΦMDev > .25 > pi rad.
This changes the
Φ
M deviation to 0.25
π
radians.
4. Press
ΦMRate > 10 > kHz.
This sets the
Φ
M rate to 10 kHz.
The signal generator is now configured to output a 0 dBm, phase-modulated carrier at 20 GHz
with a 0.25
π
radian deviation and 10 kHz rate. The shape of the waveform is a sinewave.
(Notice that sine is the default for the
ΦM Waveform softkey. Press More (1 of 2) to see the
softkey.)
Activating
Φ
M
Follow these remaining steps to output the phase-modulated signal.
1. Press
ΦMOffOn.
The
Φ
M annunciator is activated, indicating that you have enabled phase modulation.
2. Press
RF On/Off.
The RF ON annunciator is activated, indicating that the signal is now available at the
RF OUTPUT connector.
The signal generator is now configured to output a 0 dBm, pulse-modulated carrier at 18 GHz
with a 100-microsecond pulse period and 24-microsecond pulse width. The pulse source is set
to internal free-run. (Notice that internal free-run is the default for the
Pulse Source softkey.)
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