User Manual
Carrier Wave Waveform Selection
Press Carrier soft key to enter carrier waveform selection interface. FSK carrier
waveform can be: sine wave, square wave, ramp wave or arbitrary wave (except DC),
and the default is sine wave.
Carrier Wave Frequency Setting
See Carrier Wave Frequency Setting
Modulation Source Selection
The device can select internal modulation source or external modulation source. After
enabling FSK function, the default of modulation source is internal. If need to change,
press Param → Source → External in turn.
1) Internal Source
When modulation source is internal, internal modulation wave is a square of 50% duty ratio
(not adjustable). The FSK rate can be set to customize the moving frequency between
carrier wave frequency and hop frequency.
2) External Source
When modulation source is external, carrier waveform will be modulated by an external
waveform. FSK output frequency is determined by the logic level of modulation interface
on front panel. For example, output the carrier wave frequency when external output logic
is low, and output hop frequency when external input logic is high.
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