Question about Icom Ic-m34 Vhf Waterproof Marine Two-way Radio

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Radio not receiving on any channel

The radio can transmit just fine, everything seems to work great, just does not receive any transmission on any channel. The speaker works just fine. I can get sound when sql is 0 or when I activate the Aquaquake feature. I also opened the unit and tested 8 ohms across the speaker. visual inspection of circuits did not reveal anything unusual. I'm hoping an expert can give me another troubleshooting tip as I dont think sending this in for repair is going to be worth the cost.

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  • Icom Master
  • 3,287 Answers

Hi Mike,

The manual for this radio (in Adobe .pdf format) is available for download directly from Icom America, free of charges.

Since the "AquaQuake" function works and you do hear static when the squelch is off, that is sufficient to let us know that the voice coil of the speaker is functional and should produce sounds with the right signal applied.

The first thing to determine is if you're close enough to another operating transmitter for the radio to receive a signal. One of the 10 weather channels the radio is capable of tuning should be close enough produce some intelligible audio from the speaker - assuming the squelch setting isn't set too high.

If a WX channel works, then you'll need to see if there's a VHF Marine band transmitter operating nearby. You might need to set another Marine band radio receiver up to verify that there is indeed a signal present on the particular Marine band channel that you're monitoring. A list of frequencies is published on pg 27 (of the manual linked above) in case you need to convert between channel and frequency to tune on a non-channelized radio.

Outside of that, there's little the end user can do without specialized test equipment, schematics and of course, training. Many shops will be happy to provide an estimate for repair when provided with a small bench diagnostic fee. This fee is usually applied towards an authorized repair by most reputable repair shops.

I hope this helps & good luck!

Posted on Nov 27, 2012

Testimonial: "Thanks for providing the additional troubleshooting tips and the link to the manual. "

  • mikedbom
    mikedbom Nov 28, 2012

    Thanks for the reply. I have tried using a friends radio with no luck. I have also tried to get a weather channel working without luck. I understand this may be out of my hands now so I will pursue a repair if its not too much. Thank you.

  • Steve Nov 29, 2012

    Good luck Mike. Try Icom for either their repair or a list of authorized repair shops if unsure about any local shop. Their site:http://www.icomamerica.com/en/support/de...

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