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Old 20 May 2005, 14:47   #1
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ICOM M601 transmission problem

My 601 has recently developed an intermittent problem transmitting, which today led to me being unable to call up a marina on my fixed set, but when I used my handheld M1 Euro I got through with no problem.....

Reception on the 601 is fine, and when I held down the PTT it was showing Tx on the top of the screen.

This happened a while back, but then last time I was out the set worked fine. Perhaps Jon can set me straight?....

Incidentally, it came without the coastguard MMSIs programmed in, so that kept me busy for a while
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Old 20 May 2005, 15:04   #2
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check Mike lead

Quote:
Originally Posted by jim68585
My 601 has recently developed an intermittent problem transmitting, which today led to me being unable to call up a marina on my fixed set, but when I used my handheld M1 Euro I got through with no problem.....

Reception on the 601 is fine, and when I held down the PTT it was showing Tx on the top of the screen.

This happened a while back, but then last time I was out the set worked fine. Perhaps Jon can set me straight?....

Incidentally, it came without the coastguard MMSIs programmed in, so that kept me busy for a while
hello had similar on mine when mounted flush on Rib . Water used to get in the main fist mike socket and cut transmission like the problem you have.
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Old 21 May 2005, 01:06   #3
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Hi

First thing to try is to check all the connections.
I have seen a number of time the antenna plug work loose, especially on a rib.
Also the power connections, make sure there is no corrosion.
If there is the set may no be able to draw the current it needs.
Check the mic plug and socket as suggested.

If still having problems send it back to us for a once over.

Hope that helps

Best regards
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Old 21 May 2005, 03:31   #4
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Thanks - will check all connections and get back to you - may be a couple of weeks tho'. Had assumed that the mic connection was ok, as the PTT was at least being recognised in that Tx was showing on the screen.
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Old 13 June 2005, 18:14   #5
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Jon

Just to let you know that it all seemed to be working again ok on Saturday, having checked the mic and antenna plugs were in properly. Power connections looked ok, so it may be the mic socket has dried out in the meantime (cf REKRAP's comments). Will wait to see if problem comes back once I get spray over the console again!!
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