MP7505 Series User Manual
(7) Set frequency deviation:
Frequency deviation is the deviation of the modulating wave frequency relative
to the carrier wave frequency. Press the Deviation softkey to set the FM
frequency deviation. Frequency deviation range: 2 mHz ≤ deviation < upper limit
(upper limit is carrier frequency or carrier maximum frequency minus carrier
frequency, the smaller of the two).
PM (Phase Modulation)
The modulated waveform consists of the carrier wave and the modulating wave. For
PM, the phase of the carrier wave varies with the instantaneous voltage of the
modulating wave. The PM user interface is shown below.
Figure 5-14: PM user interface
How to set the parameters of PM
(1) Press the Mod function key, then press the Type softkey, turn the rotary control
to select PM, press the OK softkey.
(2) Select carrier wave shape:
The carrier wave can be Sine, Square, Ramp, or Arbitrary wave (except DC).
Press , , , or to select a desired carrier wave shap.
(3) Set carrier wave parameters:
Press the wave shap key of the selected carrier wave to display the waveform
and parameters of the carrier wave. You can change the parameters of the
carrier wave. Press Mod to return to the modulation mode interface.
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