GME TX 3200 problem

Gday all

I have a gme tx 3200 cb in my vehicle.

Up to recently its been working fine

I now have a problem.

This weekend, whilst travelling in convoy with some friends, the others cannot hear me transmitting. I can receive them fine and hv no problems hearing them from at least 2 kilometres away, and further.

They can hear me from a short distance, say under 20 metres, but cant hear me at any distance of over about 100 metres.

The tx lcd comes on when I press the transmit button

What can you suggest

Cheers
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Reply By: Robin Miller - Thursday, Mar 19, 2015 at 07:48

Thursday, Mar 19, 2015 at 07:48
You most likely have a failed output TX chip lambo and if so would have to be repaired by manufacturer.

The other senario is that you have a bad aerial and the tx3200 senses this and does allowthe unit to transmit.

However if this were the case the radio tx light usually doesn't come on and your reception also would not be as good , and you seem to hear ok.

I would be trying to double check with a known good aerial first but it looks like its off to a repairer.
Robin Miller

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AnswerID: 551194

Reply By: Member - Rosco from way back - Thursday, Mar 19, 2015 at 10:43

Thursday, Mar 19, 2015 at 10:43
Lambo

Would your unit be 80 channel and the others 40 channel?
If so, this could also be your problem. We had the same issue over the weekend and I put it down to this. We could chat over distances with others, but had similar issues with our other vehicle (they had a no-name 40 channel hand held).
AnswerID: 551199

Reply By: Stu & "Bob" - Thursday, Mar 19, 2015 at 12:31

Thursday, Mar 19, 2015 at 12:31
I think you have a broken centre conductor in your antenna co-ax.
Check its continuity with a multimeter, and avoid Tx until rectified as you may burn out the power amplifier in the rear of the unit, making it u/s.


.
AnswerID: 551202

Reply By: HKB Electronics - Thursday, Mar 19, 2015 at 13:01

Thursday, Mar 19, 2015 at 13:01
As Robin wrote, could be a failed TX stage, is quite common with GME's

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AnswerID: 551204

Reply By: Member - William B (The Shire) - Thursday, Mar 19, 2015 at 20:34

Thursday, Mar 19, 2015 at 20:34
Hi lambo,
I had a similar problem.
Repaired by GME.
Here is a portion of the quote which also outlined the part which failed.
I have no idea what it is.

Model: tx4320
Serial No:
QUOTE DETAILS:
PARTS REQUIRED QTY= RA07N4452M 440-520MHz 7W 9.6V
TOTAL COST OF REPAIR: $ (GST included) 82.50

William
Always planning the next trip. VKS-737 mobile 1619

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AnswerID: 551220

Follow Up By: cookie1 - Thursday, Mar 19, 2015 at 20:43

Thursday, Mar 19, 2015 at 20:43
As others have said, final output stage

http://www.mitsubishielectric.com/semiconductors/content/product/hf/sirfpowermod/siliconrfmodule/siliconrfmodule_lv4/ra07n4452m.pdf
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FollowupID: 836700

Follow Up By: The Explorer - Thursday, Mar 19, 2015 at 20:47

Thursday, Mar 19, 2015 at 20:47
Hi

Out of curiosity is this just a random fault or caused by something (i.e some sort of improper use)?

Cheers
Greg
I sent one final shout after him to stick to the track, to which he replied “All right,” That was the last ever seen of Gibson - E Giles 23 April 1874

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Follow Up By: cookie1 - Thursday, Mar 19, 2015 at 20:55

Thursday, Mar 19, 2015 at 20:55
I understand they did have a series of issues with the internal power supply at one stage so not sure if it is related at all, I remember this swaying my decision to go with the Icom at the time.

cheers
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FollowupID: 836703

Reply By: lambo - Friday, Mar 20, 2015 at 08:36

Friday, Mar 20, 2015 at 08:36
thanks all for the input. i will try gme

cheers
AnswerID: 551246

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