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  #1  
Old 10-10-2017, 10:19 AM
Gaspy Gaspy is offline
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Join Date: Oct 2017
Posts: 1
Default Motorola T80 won't transmit

Hi,

First of all I hope I'm in the right forum.

I purchased 4 Motorola T80 walkie-talkies last year and they worked perfectly until recently.

Now, one of the units won't transmit. When I press the transmit button, it emits a continuous beep and the channel number is flashing. The other units work fine on the same channel. The battery is fully charged.

I couldn't find anything in the manual or online.

Does anyone have any idea what it could be?
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  #2  
Old 10-10-2017, 01:52 PM
Rick S Rick S is offline
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Join Date: Oct 2010
Posts: 806
Default Re: Motorola T80 won't transmit

I'm not familiar with that model, but from what I can tell the T80 seems to be a PMR446 walkie talkie similar to the Motorola Talkabout T400 FRS/GMRS Radio we carry here in the US.

Even if the battery shows a full charge, if it is weak or damaged it may not be able to handle the power draw to transmit when you press the PTT. Try swapping the battery with one from another radio. If it resolves the issue, your battery may need to be replaced. If not try the next step.

Clear out all CTCSS and DCS codes, Group Mode, direct call, and call tones on the radios. If the radio transmits, it was a programming issue. If not, you may need to contact the Motorola support line in your country.
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  #3  
Old 12-24-2018, 11:51 AM
Far Adventures Far Adventures is offline
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Join Date: Dec 2018
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Default Re: Motorola T80 won't transmit

I had the same problem.

When I press the transmit button, it emits a continuous beep and the channel number is flashing.

Solution : There might be a malfunction in Builtin Mic, i plugged in the Headset and it resumed working normally, hence somehow the mic got damaged.

Use the Headset.
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  #4  
Old 02-10-2019, 02:37 PM
kawasaki499 kawasaki499 is offline
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Join Date: Feb 2019
Location: Austria
Posts: 1
Default Re: Motorola T80 won't transmit

Thanks to Far Adventures for posting this solution. It took me a hole day to find this hint (perhaps it?s the only one).
As mentioned above the problem is the built in mic. I wanted to test the mic and opened the T80. When I removed the mic (soldering iron is needed) I saw that one soldering point at the body of the mic was left blank ? the mic itself is working but has a bad contact without the missing soldering point. Adding this point solved the misbehaviour of the T80. Perhaps this is a planned obsolescence point. I hope this helps.
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