Thread: GME TX472D receiving, not sending..

My guess would be microphone.
have you tried whacking it on a hard surface a few times?

Seeing people at the receiving end hear a signal. strength? and the TX light comes on it would suggest microphone.
Perhaps try another mic if you can.
Regards Philip A

Tried whacking it, and more of the same.
I've been looking for another mic but I can't seem to find one,
Anybody with a spare I'm willing to pay for it.

hi the same thing happend with mine it was a bad earth on my ariel so i ran a seperate earth strap at the mounting base of the areial now it works clear as day

Just called GME and they dont make any microphones to fit them anymore, not really a surprise there.
Tried the ariel with a separate earth connection and no luck..
Seriously considering replacing the whole unit which is a bit of a shame.

Just for the record, the earth on the antenna is to complete the coax earth circuit to isolate the inner wire from RFI.
It should have no effect on transmission if say the engine was stopped and just maybe cause a heap of static with the engine going.
I think that you may have fixed a poor connection of the actual inner wire at the same time.
I currently do not have the antenna end of my coax earthed as it runs up my B pillar to the console , away from any RFI and I didn't want to break the paint in the gutter.
My 18 year old Uniden transmits perfectly.
Most if not all mobile phone screen antennas are not earthed.

BTW HappyKid? You should be able to get a tech to connect your plug to a new Mic. OR In many cases the twisting of the cable by picking it up etc has just broken a wire where it goes into the mic or at the plug end. Get out the little screwdriver and have a look.
Regards Philip A

thanks Phil,
I pulled off the back of the mic and all the wires seem to be in the right place in good working order unfortunately.
i wonder if the wires on the inside are generic, and a different mic could just be connected up on the inside to the old cable?

what plug does it have? 4 or 5 pin round?

I pulled off the back of the mic and all the wires seem to be in the right place in good working order unfortunately.

Happykid, we got a bit ahead of ourselves here.
AFAIR , I asked that you advise what the person receiving reported as the signal strength.
It may well be that the amplifier is crook, or the antenna lead is broken.
Maybe go to a specialist shop for them to check it.
I cannot see your location from this pane, but if in Sydney there is a shop at Roseville AFAIR.
Regards Philip A