multicomp MP7505 Series - FM (Frequency Modulation)

MP7505 Series User Manual
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How to set the parameters of DSB-AM
(1) Press the Mod function key, then press the Type softkey, turn the rotary control
to select DSBAM, press the OK softkey.
(2) Select carrier wave shape:
The carrier wave can be Sine, Square, or Ramp. 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.
(4) Select modulating wave source:
Press the Source softkey to select the modulating wave source.
If you select External, use the Mod/FSK/Trig connector at the rear panel to
input the external modulating signal, the DSB-AM setting is completed.
If you select Internal, continue with the following steps.
(5) Select modulating wave shape:
Press the Shape softkey, then press the Sine, Square, or Ramp softkey to select
the modulating wave.
(6) Set modulating wave frequency:
Press the AM Frequency softkey to set the modulating wave frequency. The
range is 2 mHz – 1 MHz (for internal source only).
(7) Set modulation depth:
Press the Depth softkey to set the modulation depth. The range is 0% - 100%.
FM (Frequency Modulation)
The modulated waveform consists of the carrier wave and the modulating wave. For
FM, the frequency of the carrier wave varies with the instantaneous voltage of the
modulating wave. The FM user interface is shown below.