What is indicated if a VHF radio fails to...

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Question 1 of 20g9l7OjFOXDESTWXoZPDk

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.

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🔍 Key Concepts

• How to interpret a zero-volt reading on a DC supply line when measured to ground • What an ohmmeter reading of zero across a fuse actually means about the fuse condition • The basic purpose of a crowbar protection circuit in DC-powered electronics

💭 Think About

• If the voltmeter reads zero volts from the positive DC line to ground, what does that say about the power getting to the radio itself? • If the fuse reads zero ohms on an ohmmeter, is the fuse open or intact, and does that suggest the problem is before or after the fuse? • Which option specifically mentions a circuit that would directly affect the DC power line rather than RF/antenna or audio circuits?

✅ Before You Answer

• Confirm what zero volts between the positive lead and ground usually indicates in a powered circuit. • Confirm whether zero ohms across a fuse means it is blown or good. • Identify which choice describes a problem that would most logically result in no DC voltage reaching internal radio circuits, not just poor reception quality.

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