GW Instek AFG-2225 User Manual - Manual (Page 87)

MODULATION
87
FSK Hop Frequency
The default Hop frequency for all waveform shapes is 100 Hz. A
square wave with a duty cycle of 50% is used for the internal
modulation waveform. The voltage level of the Trigger INPUT
signal controls the output frequency when EXT is selected. When the
Trigger INPUT signal is logically low the carrier frequency is output
and when the signal is logically high, the hop frequency is output.
Panel Operation 1. Press the MOD key.

2. Press F3 (FSK).
K 
3. Press F2 (Hop Freq).
oprq 
4. The Hop Freq parameter will become
highlighted in the Waveform Display area.
5. Use the arrow keys and scroll
wheel or number pad to enter
the hop frequency.
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