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IC-M504 with a rear panel microphone jack-- what is the pinout?


ICOM or even HRO may be able to provide you with a schematic for that pinout.

Jun 04, 2012 | Icom IC - M504 Black Submersible PLUS...

2 Answers

My icom ic v8 is weak on receiving...pls help


Is it week because the incoming signal is coming from further away or is it coming from down the street . Maybe the problem is on the other end,the incoming signal is not strong enough.Lots of reasons.

Jun 04, 2012 | Icom Ic V80 Vhf Handheld Two Way Radio...

1 Answer

Dear sir I HAVE VHF MARINE TRANSCEIVER IC-M34 for 2 years ago, suddenly, I can't receive any signal ( transmitting without receiveing ) but if I set the squelch to 0 level I can reveive signals and...


This is a front end issue that has to be remedied by a radio tech or the factory. The front end is the receiver and it takes special tools and equipment to test and calibrate it correctly,, The only thing you can do is check the ICOM page to see where it can be serviced.

Nov 27, 2017 | ICOM Informatique Floating Hand Held Vhf...

1 Answer

I have an icom marine radio m505 (nearest model) which I bought over two years ago. The channels were very quiet including channel 16 so I tested it with local coast guard. I can transmit but cannot...


First of all check if your antenna cable is in good shape.
Check if there are no shorts in the connectors between the center lead and the screen tress.
Also check if the center lead is soldered into his connector pin on each connector on the cable.
Set squelsh just out of the noise zone.

Aug 06, 2017 | Icom IC M504 Black Submersible PLUS Marine...

1 Answer

I have an ICOM IC M505 marine VHF which is the closest model to the one described below. It is less than 3 years old. The channels have been very quiet including channel 16. This prompted me to test the...


Probably not the squelch but the speaker on the VHF. These radios are famous for crapping out when getting wet.
Try listening to the weather radio VHF ch 01, 02, or 03. depending on your location and play with squelch.. Keep in mind they do make external speakers you can hook up.

Jul 24, 2017 | Icom IC M504 Black Submersible PLUS Marine...

1 Answer

Icom IC-M34 transmit correct but do not receive if sql is above 0


Sound like a speaker problem, dosconnect the speaker and check it with a meter, it should read 8 ohm. Good luck.

Mar 13, 2011 | ICOM Informatique Floating Hand Held Vhf...

1 Answer

Hello, Can you tell me what make of GPS will work with the Icom m-504. I tried using the Garmin 76csx with the NEMA in/Nema out function set, but it will not communicate to the Icom. I would appreciate...


Hi!

We had the same problem with our Uniden Oceanus failing to communicate with our GPS. What the problem was, was that our VHF didn't recognize the NMEA sentences transmitted from our "ancient" GPS. We ended up buying a Standard Horizon cp180 chartplotter. PRESTO! Our DSC capability materialized.

Your 76CSx is newer than our Magellan was, so before you take on the task of a $400 chartplotter purchase, just make sure your BAUD rate is set to 4800. This adjustment alone could make your GPS work with your ICOM.

Hope this is helpful.

Jan 23, 2011 | Icom IC M504 Black Submersible PLUS Marine...

1 Answer

I have an ICOM-504 . I can transmit but I can not receive any chanels even the WX is not receiving


Hello,

I had the same problem and traced it to a bad connection between flex cables and boards.It seems the SQL signal from the Rx board is not reaching the processor on the front panel. Check all connections (reseat all cables) and try again.

servstan

Aug 09, 2010 | Icom IC M504 Black Submersible PLUS Marine...

1 Answer

M402 didnt receive the gps signal transmitted by garmin 72 via nmea 2.0


Check the wiring again. Installing my M422 needed to switch the polarity of the NEMA input from my GPS75. May be similar problem

Oct 23, 2009 | ICOM Informatique Icom IC-M402 VHF Marine...

1 Answer

I have an icom m304marine vhf with a shakespeare


Sound like you have an antenna issue. Try a different antenna with coax. If the problem is still there, than you have a problem with the radio. Icom makes really good marine radios but you could have a defective one.

Jun 30, 2009 | Cobra Mr F75b Marine Vhf Radio Fixed Mount...

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