2.5.7. Pulse width modulation function (PWM):
【PWM】key, output pulse width modulation signal.
Modulation frequency setting: set modulation frequency as 1Hz
Press【Menu】key to light “Mod_f” character, then press【1】【Hz】.
Pulse Width Deviation Setting：set pulse width deviation as 80％.
Press【Menu】key to light “Devia” character, then press【8】【0】【%】.
Modulation waveform setting: set modulation waveform as sine.
Press【Menu】key to light “Shape” character, and then press【0】【N】.
2.5.8. Frequency shift keying function (FSK):
Set the waveform as sine.
【FSK】key, output FSK signal.
Hop rate setting: set hop rate as 1kHz.
Press【Menu】key to light “Rate” character, then press【1】【kHz】.
Hop frequency setting: set hop frequency as 2kHz.
Press【Menu】key to light “Hop” character, then press【2】【kHz】.
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