6816985H01-F February 14, 2012
VHF Troubleshooting Waveforms: TX Audio 1 kHz Tone 7.1-35
7.1.34TX Audio 1 kHz Tone
Trace 1: TP23 Mod In (640 mVp-p 1 kHz tone 1.5 Vdc)
Trace 2: U201, pin 1 (620 mVp-p 1 kHz tone)
Trace 3: FL200, pin 8 (1.2 MHz square wave 0 to 3 V)
Note: Transmit audio 1 kHz tone, which provides 3 kHz deviation.
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