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Old 10 August 2011, 04:28   #1
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VHF Problem

Hi, my Icom IC-M421 has started playing up and I wondered if anyone has had the same problem - and hopefully found a solution?

I can transmit perfectly, but I can't receive unless I'm very close to the responding VHF.

If I call QHM for a radio check they can hear me loud and clear. If I use a handheld VHF about 5m from my fixed one I can receive, but much further than that and the signal dies.

I've played around with the aerial connection, tested the speaker, played with vol / squelch, etc. but no solution.

So, before I ditch it and buy a new one - any advice?

Cheers
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Old 10 August 2011, 05:03   #2
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I can transmit perfectly, but I can't receive unless I'm very close to the responding VHF.
Ditch it and buy a new one from us

More seriously, I would try another antenna and coax combination first. Just a temporary rig plugged in the back to test.

If you do decide to replace it, send the current one to us for testing. Icom are known for great after sales.
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Old 10 August 2011, 05:58   #3
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Cheers, will certainly try new lead / aerial combo.

Just in case, if you want to PM me your best price for a replacement...........
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Old 17 August 2011, 12:05   #4
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Sounds like antenna or amp

You may consider repairing it.
Would do a lot of work with PMR radio's (bouncers, taxi, events etc)
They are essentially the same radio, just different frequencies, and they are always blowing minor components and antenna being damaged.

If your radio modulating ok, It might be worth asking a local repair shop to have a look inside her. Possibly slightly cheaper than manufacturer, will void warranty etc, but sometimes the back street "radio shacks" have very intelligent people working in them. Sometimes they are just con artists too !
Just a helpful suggestion.
D
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Old 18 August 2011, 04:00   #5
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Thanks for your help guys. Got angry and shouted at VHF then decided to put a new aerial / lead combo on. It is now working - Phew!
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Old 18 August 2011, 04:24   #6
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I would try another antenna and coax combination first.
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Originally Posted by Dry Run View Post
Thanks for your help guys. Got angry and shouted at VHF then decided to put a new aerial / lead combo on. It is now working - Phew!
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