M1225 REPEATER

Richard Collier · Post by **Richard Collier** » Mon Nov 17, 2014 5:34 am

I have a VHF M1225 repeater nothing special for a controller just a standard desk unit. tI has been working fine until the other day where it justs starts to transmit out of the blue. Morse code ID is on and that is not it. Even when a antenna is not connected it will transmit for 180 sec dead key. At first I thought someone found the rx freq and tone but with no antenna hooded up I ruled that out. Any ideas???

Bill_G · Post by **Bill_G** » Mon Nov 17, 2014 6:39 am

Check the power supply.

Read the codeplug, save a copy, write it back in.

Richard Collier · Post by **Richard Collier** » Mon Nov 17, 2014 8:16 am

Done that several times, even changed freqs and tone same thing happens.

Will · Post by **Will** » Mon Nov 17, 2014 9:58 am

Richard,

Is that a one radio R1225 repeater?

Richard Collier · Post by **Richard Collier** » Mon Nov 17, 2014 11:01 am

Yes I think it is.

Bill_G · Post by **Bill_G** » Mon Nov 17, 2014 12:27 pm

Richard Collier wrote:Done that several times, even changed freqs and tone same thing happens.

Got a codeplug from the same model, but a different machine? Or have you created a fresh codeplug from a default?

If it still fails after a fresh codeplug, I'd replace the command board.

jackhackett · Post by **jackhackett** » Mon Nov 17, 2014 1:17 pm

Have you checked that it's not a short on the front panel mic or accessory PTT?

Richard Collier · Post by **Richard Collier** » Wed Nov 19, 2014 6:44 am

Yes I have checked the mic plug. it will run fine for a few mins then just decides to transmit.

Richard Collier · Post by **Richard Collier** » Wed Nov 19, 2014 6:49 am

Bill_G wrote:
Richard Collier wrote:Done that several times, even changed freqs and tone same thing happens.
Got a codeplug from the same model, but a different machine? Or have you created a fresh codeplug from a default?

If it still fails after a fresh codeplug, I'd replace the command board.

At first the plug was corrupt could not read the machine. Down loaded a code plug from the super code plug site and it programmed up fine and was working great for a few days. I was suprised they even had one for the same radio.

Richard Collier · Post by **Richard Collier** » Wed Nov 19, 2014 8:43 am

Took the repeater apart this AM and everything looks good even the remote mic and speaker in the kitchen and garage. Been on for about 45 mins now and playing nice. Not sure what the glitch was. Remote mic and speaker wires are soldered to the back side of the mic and speaker jacks behind the front control panel.. That is ran with a phone 6 wire cable to the remote control units. Done nice and neat.

Will · Post by **Will** » Wed Nov 19, 2014 11:27 am

Richard Collier wrote:Took the repeater apart this AM and everything looks good even the remote mic and speaker in the kitchen and garage. Been on for about 45 mins now and playing nice. Not sure what the glitch was. Remote mic and speaker wires are soldered to the back side of the mic and speaker jacks behind the front control panel.. That is ran with a phone 6 wire cable to the remote control units. Done nice and neat.

Ah Ha... extended local control. Things like PTT do not take much resistance to ground to key up the TX.

Bill_G · Post by **Bill_G** » Wed Nov 19, 2014 7:05 pm

And if it's at a remote site, could be RF keying the remote somehow.

jackhackett · Post by **jackhackett** » Thu Nov 20, 2014 6:18 am

Yes........ that remote setup probably should have been mentioned in the original post.

Is there a way to easily disconnect it right at the repeater, such as a modular wall jack? That way if the problem reoccurs you could unplug it and see if it is the cause.

A bad remote, a little condensation in the cable, a little bit of mouse gnawing or cable pinching is all it would take to get an intermittent hung keyed problem.

Richard Collier · Post by **Richard Collier** » Fri Nov 21, 2014 6:37 am

Remotes were not even hooked up at the time. Plug it into the wall 110v morse code ID would sound and a few moments later just a dead key. Has been working fine right now from my last post.

Richard Collier · Post by **Richard Collier** » Sun Nov 23, 2014 6:37 pm

It's at it again. With nothing hooked up to it.

Bill_G · Post by **Bill_G** » Sun Nov 23, 2014 7:43 pm

At home, or at the site?

Richard Collier · Post by **Richard Collier** » Mon Nov 24, 2014 12:50 pm

At home in a room by itself nothing else around.

Bill_G · Post by **Bill_G** » Mon Nov 24, 2014 8:13 pm

Got spare parts?

Richard Collier · Post by **Richard Collier** » Tue Nov 25, 2014 5:53 am

Thinking I might need a new code plug???

Bill_G · Post by **Bill_G** » Tue Nov 25, 2014 6:09 am

Worth a try. Start from scratch, blow that in, and see what happens.

Richard Collier · Post by **Richard Collier** » Tue Nov 25, 2014 7:24 am

Now I just have to find one that someone might be selling.

Richard Collier · Post by **Richard Collier** » Mon Dec 01, 2014 5:39 am

I think I have found the problem, The fan runs all the time, there is a switch on the back of the unit for continues use or thermal. I switched over to thermal where it comes on when needed. Been working like a charm, It seems to be playing nice so far, remotes have been hooked back up with out any issues. Remenber it was doing this with nothing hooked up to it.

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