uhf problem

Submitted: Sunday, Apr 20, 2008 at 08:36
ThreadID: 56796 Views:2290 Replies:8 FollowUps:4
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hi guys
i just installed my uniden uf015sx uhf radio into my 100 series
yesterday its all hooked up and working but i cant transmit or or pick up and signals,there is nothing.

i assume that its somthing to do with the antenna,i wasn't sure how to connect the plug to the end of the coax cable,but what i did was strip the cable back a bit and had the centre wire sticking out the soldered it in to the plug but maybe there is a short somewhere, could it be cause the outer silver shielding is touching the plug the antenna is a GME AE40118K1.

so is there a correct way to attach the plug to the coax cable or could it be something else

any help would be great
regards brentos
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Reply By: Shane (QLD) - Sunday, Apr 20, 2008 at 09:00

Sunday, Apr 20, 2008 at 09:00
A Multi Meter would help, but failing that get a torch battery with a globe in series & put one end on the aerial terminal & the other end on the back of the battery. If it lights up the globe on the centre & the outer braid you have a short.
AnswerID: 299396

Reply By: Peter 2 - Sunday, Apr 20, 2008 at 09:22

Sunday, Apr 20, 2008 at 09:22
quite often some UHF's won't work at all or very well if the actual mounting bracket and chassis is earthed as well. so if you have it mounted to a part of the car that is plastic try connecting a wire between the chassis of the radio and the metal on the car.
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AnswerID: 299399

Reply By: Member - Davoe (Yalgoo) - Sunday, Apr 20, 2008 at 09:31

Sunday, Apr 20, 2008 at 09:31
youve gotta do those plugs properly, 1 stray wire will short it and stuff performance
AnswerID: 299401

Reply By: Member - Phil G (SA) - Sunday, Apr 20, 2008 at 09:50

Sunday, Apr 20, 2008 at 09:50
Heres soem instructions:
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AnswerID: 299404

Follow Up By: brentos - Sunday, Apr 20, 2008 at 11:10

Sunday, Apr 20, 2008 at 11:10
hi guys

thanks for your help i did the plug again its getting good reception picking up converations from far and wide but im not sure if i am transmitting because whenever i ask for a radio check i get no reply,i am new to the uhf scene so i am entirely sure what im doing.

if im recieving a signal ,will it be transmitting or is there another problem or is there some setup involed with uhf radios
more help please anyone

regards brentos
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FollowupID: 565577

Follow Up By: KiwiAngler - Sunday, Apr 20, 2008 at 13:23

Sunday, Apr 20, 2008 at 13:23
I dont want to sound negative BUT.....

If, as you say, you have redone the plug and are now getting good reception I can only assume that the plug was 'done' incorrectly the 1st time you did it.

If you tried to transmit when it was 'done' incorrectly then there is a good chance that you have blown the transmit part of the radio.

If the power used to transmit cannot go up the antenna it will cause the transmit relay to over heat and fail. This could account for why you can receive but not transmit.

If I am correct then it is off to the radio doctor I am afraid

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FollowupID: 565592

Reply By: MickeyJ - Sunday, Apr 20, 2008 at 13:41

Sunday, Apr 20, 2008 at 13:41
Other option is you are hearing a repeater, and you are trying to transmit back to them without being on duplex.
AnswerID: 299422

Reply By: brentos - Sunday, Apr 20, 2008 at 16:30

Sunday, Apr 20, 2008 at 16:30
hey there
i hope there is nothing blown the other thing is i do live down in a
gully area so i am surrounded by a big mountain so i really only get good reception on top of the hill and i haven't actually been out on the highway yet to try and transmit to any body on the road. the main channels that i seem to be recieving are repeater channels but even in duplex mode i cant transmit i dont know if it cause it could be to far away or would it not make any difference im just in a suburban area so maybe nobody is transmitting nearby.

what is the average distance to can transmit to a friend in your average suburbia

regards brentos
AnswerID: 299451

Follow Up By: Member - Phil G (SA) - Sunday, Apr 20, 2008 at 19:41

Sunday, Apr 20, 2008 at 19:41
Line of sight. On top of a hill you should be able to easily do 20km. Down in a valley, you'd be lucky to get past the sides of the hill.

I'd assume that your set is fine now. Put it on scan when you're travelling, and ask for a radio check when you get some strong signals on air.
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FollowupID: 565659

Reply By: brentos - Sunday, Apr 20, 2008 at 19:56

Sunday, Apr 20, 2008 at 19:56
hi phil

i took the car for a run down the highway a little while ago
i can pick up the odd channel while scanning
but when i ask for a radio check i get no answer even in duplex mode on duplex mode the set is brand new but i am thinking there is another problem with the set,maybe i have cooked the
transmit gismoz in the set does anybody know anybody on the gold coast who can check them out

thanks brentos
AnswerID: 299500

Follow Up By: brentos - Sunday, Apr 20, 2008 at 19:59

Sunday, Apr 20, 2008 at 19:59
sorry guys theres a typo in there i meant even in duplex mode on the repeater stations i cant transmit i can only listen

thanks brentos
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FollowupID: 565675

Reply By: Wetty - Sunday, Apr 20, 2008 at 22:56

Sunday, Apr 20, 2008 at 22:56
Have you tried getting the missus to ask for a radio check. . . . could be that your voice just ain't sweet enough??? :-(
mind you, you are using a GME product which could say it all. . . make mighty fine wheel chocks the GME radios.
AnswerID: 299542

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