GW Instek AFG-100/200 Series User Manual - Manual (Page 46)

AFG-125/225 Series Options Manual
46
PM Modulation
Background The PM Modulation function can set the phase
modulation frequency (PM Freq), phase deviation
(Phase Dev) and the PM shape (Shape).
The phase deviation of the carrier waveform
deviates from a reference phase value in
proportion to changes in the modulating
waveform.
Steps 1. Set the carrier waveform and
frequency. You can set the carrier
waveform and frequency in the
Selecting a Basic Waveform section.
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2. From the first level of the AFG
menu, press the Signal 1 Setup or
Signal 2 Setup key to select the
signal source.
3. From the bottom menu press
MOD.
4. From the side menu turn MOD On,
press more 1 of 2 and then select the
PM modulation.
Note
Only one modulation mode can be active at any one
time. The function generator also will not allow sweep,
burst or ARB mode to be used with a modulation
function. Activating a modulation mode will turn the
previous modulation mode off.