Rusty, I've used a circuit that looks at the ptt and if it stays continously keyed for more than 10 minutes, continously, the circuit removes power from the controller for about 1.5 sec, enough time for things to drain, and then re-applies power.
The circuit reset the 10 minute timer on ptt going hi, unkeyed. The circuit is all hardware, no CPU. 73, ron, n9ee/r >From: Rusty Boling <[EMAIL PROTECTED]> >Date: 2008/07/15 Tue AM 09:07:16 EDT >To: [email protected] >Subject: [Repeater-Builder] 12v 24 hr timer high current circuit needed..or >means of external power cycling > >Hey guys, just trying to figure out a quick and dirty way to automatically >cycle power to a repeater one time per day for a short period of time. Been >having problems with the repeater that I maintain. Basically figuring it's a >controller glitch, but occasionally the repeater will lock up on transmit >until power to the repeater and controller are cycled. I am pretty sure it's >a glitch in the controller as this has happened on and off for years but for >some unknown reason it has occured more as of late. It's not a huge deal, but >it is a pain in the rump to drive to the site every time that it occurs to do >a manual reset. So what I have done over the years is install a 120V timer in >line with the power supply and cycle the power once per night for 1 minute at >a time and that keeps me from driving 30 miles, through 4 gates, cow patties, >and jungle-like conditions each way to get to the site. At any rate, I >basically need a timer that will run on 12V, that can power a relay that can >cycle power to the repeater (and controller specifially, but want to do both) >as I would like to get this repeater back on it's battery backup without >having to drive up there every time that it has a glitch to do a full power >cycle when what I am speaking of will atleast solve the problem 1 to 2 times >per day depending on how many times I have it recycle daily. It would not be >a big deal to drive up there as I used to do when I was single and had no >children, but nowadays when the thing locks up on transmit it's never at a >conveinient time now that family life is a big concern and my phone rings off >the hook (with hams that never use the repeater, unfortunately) with people >calling me to let me know the repeater has hung up again on transmit and >sometimes I simply can't get away quickly to fix the problem. Not that it's >needed particularly as the solution could apply to any repeater, but it's a GE >Mastr II UHF 100W repeater with a CAT-300DX controller. If anyone else has >had this problem then let me know what you have came up with. Of course, if >anyone has a better idea other than cycling power to it once or twice per day >automatically I am open to that idea as well. I would absolutely love to have >a remote radio up there with a dtmf decoder and some type of EXTERNAL >controller up there on an extra control frequency that I can use to control an >external relay to fill this function. I have a good spare 2m mobile that >would be perfect for the cause. If anyone can lead me in the right direction >please respond back to me (preferably direct). My email is ae4bkatyahoo.com >Spelled out the @ to help avoid potential spam issues that can result from >various reflectors....Thanks in advance.....Rusty > > > Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
