which the output phase shifts between the carrier phase and the
modulating phase is determined by PSK rate (for internal source only).
The range is 2 mHz – 1 MHz.
If you select External, use the Sync/Ext Mod/Trig/FSK connector at the
rear panel to input the external modulating signal.
(5) Set PSK phase deviation:
Press the Deviation softkey to set the modulating phase deviation.
FSK (Frequency Shift Keying)
Frequency Shift Keying modulation is a modulation technique that shifts the
output signal frequency between two frequencies: the carrier frequency and
hop frequency. The shift frequency (FSK rate) is determined by the internal
signal level. The FSK user interface is shown below.
Figure 5-21: FSK user interface
How to set the parameters of FSK
(1) Press the Mode function key, press the NextPage softkey,then press the
PM softkey to enter FSK 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
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
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