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CDM1250 Transmit Problem

Posted: Mon Jul 16, 2007 9:16 am
by smokey1907
Just got a CDM1250 from a seller on E-Bay for our fire dept. We have it set up to use as our base radio. The radio recieves great but will not transmitt to even trip pagers in town or in front of the station. Any suggestions or advise will be helplful.

Re: CDM1250 Transmit Problem

Posted: Mon Jul 16, 2007 9:27 am
by Jim202
This maybe kind of a dumb question, but who did the programming for your channels?

Have you checked to see if the radio even puts out any RF power? The TX may be dead.

If the radio does transmit, is it on the right frequency? Is the deviation set correctly? Is
the tone squelch the correct CTCSS tone? Do you have the correct page tones programmed?

Jim



smokey1907 wrote:Just got a CDM1250 from a seller on E-Bay for our fire dept. We have it set up to use as our base radio. The radio recieves great but will not transmitt to even trip pagers in town or in front of the station. Any suggestions or advise will be helplful.

Re: CDM1250 Transmit Problem

Posted: Mon Jul 16, 2007 12:08 pm
by HLA
check your programming first.

Re: CDM1250 Transmit Problem

Posted: Mon Jul 16, 2007 12:19 pm
by smokey1907
Programming is correct. A local shop did the programming. It was identical to another CDM that we have that works just fine and was programmed by the same shop

Re: CDM1250 Transmit Problem

Posted: Mon Jul 16, 2007 12:54 pm
by HLA
did the shop put a meter on it and see if it's actually transmitting? and if so how much power is it putting out?

Re: CDM1250 Transmit Problem

Posted: Mon Jul 16, 2007 1:02 pm
by smokey1907
All the shop did was program it. I guess I am just wondering if this probelm is going to cost us an arm and a leg or not. If it is we are going to go after the seller.

Re: CDM1250 Transmit Problem

Posted: Mon Jul 16, 2007 1:56 pm
by HLA
i'd start by putting a wattmeter on it and see if it is putting out anything and if it is hold a frequency counter up to it and see what frequency it's transmitting at.