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43. What condition may be indicated if a VHF radio cannot contact nearby stations on any channel, an inline wattmeter indicates 25 watts output (HIGH power mode), and no modulation is heard when the transmitted signal is monitored with an external receiver?
RF power output is normal, but no modulation is heard, indicating a fault in the audio path. An open connection in the microphone cable or connector would prevent audio from reaching the transmitter, resulting in a carrier signal without voice modulation.
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