5.Panel Operation
(5) Select modulating wave shape:
Press the Shape softkey, then press the Sine, Square, Ramp, Noise
softkey to select the modulating wave.
(6) Set modulating wave frequency:
Press the Frequency softkey to set the modulating wave frequency. The
range is 2 mHz – 100kHz (for internal source only).
(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: 1 μHz ≤ 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.
Mod
Type
Load
Parameter 1
Parameter 2
Parameter 3
Modulating wave
Carrier wave
Figure 5-17: PM user interface
How to set the parameters of PM
(1) Press the Mode function key, press the NextPage softkey, then press the
PM softkey to enter PM user interface.
(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
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