Most of the exciters I use in repeater service, or hot spot for matter, have a TOT in the firmware. I crank them all the way up. Sometimes that is not as long as I would like but I feel better. As Kevin says, there are USB radio interfaces available with timers. The rules in the US may have changed but I remember a time when a repeater required a control channel on 220 MHz and above. But I'm old (licensed in 1969) and things change. The "belt and suspenders" approach can be a good thing.

73, Steve N4IRS

On 4/23/2018 12:15 PM, 2E0SIP wrote:
If its supported, you might want to configure a Timeout Timer (TOT) on the repeater. This way even if the PTT is activated for long periods, the radio will stop transmitting after the timer expires.

On Mon, Apr 23, 2018 at 4:51 PM, Steve Mahler <kizzy@lusfiber.net> wrote:

I haven't had a stuck PTT on either AllStar controller.  But, I do have a DTMF command that executes a Linux reboot.   In rpt.conf it looks like ...

81234=cmd,/sbin/reboot

It seems to work OK.  It might work on PTT stuck if the receiver is still listening and some of the software is functional.

...STeve - KF5VH


On 4/23/2018 10:04 AM, Kevin Custer wrote:
On 4/23/2018 10:47 AM, Loren Tedford wrote:

Good point Keven! We are using DmKeng URIx for both repeaters on the computer.. At the time of arrival out at the repeater site.. 2 meter repeater was not stuck in the open position but the UHF repeater was stuck open with Red light on on the URIx I do not believe the green heart beat was flashing we think it was solid.. Mark doesn’t remember other than the red led was solid..


There are no versions of Asterisk/app_rpt along with hardware that are stable enough to prevent this condition from ever happening.  

You may want to consider a radio adapter that disables the PTT when the application has crashed or stopped, there's a hardware malfunction, or a communications issue with the radio adapter.  The URI doesn't currently have this functionality, but there are several others that do.

Kevin




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