Figure 5-15: DSB-AM user interface
How to set the parameters of DSB-AM
(1) Press the Mode function key, then press the DSBAM softkey to enter
DSB-AM user interface.
(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 Mode 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 Sync/Ext Mod/Trig/FSK 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%
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