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21. What is indicated if a VHF radio fails to receive nearby stations and a voltmeter connected between the positive side of a radio's DC line and ground reads zero line voltage? The fuse in the VHF radio also reads zero when checked with an ohmmeter.
A VHF radio failing to receive, displaying zero line voltage, and having a good fuse indicates a crowbar circuit has deactivated the radio to prevent damage from an overcurrent condition.
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