Dead key on P25 question

[DeoVindice]

Yeah, 60 seconds is more than enough, unless we're talking about ham radio operators.

I've run across radios programmed for 3 minutes before. I think that was either what it defaulted to, or someone thought it was really needed.

A large CapMax system near me simply doesn't have TOT programmed; hilarity ensued with a mobile mic shoved behind the seat during equipment maintenance. That talkgroup was knocked out for two hours until someone figured out how to inhibit the offending radio. It was complicated by the fact the radio shop hadn't populated the OTAA during the install, so it only appeared as "SPARE". While the system itself was perfectly capable of dealing with the situation, the personnel overseeing it were absolutely not.

 

[mmckenna]

A large CapMax system near me simply doesn't have TOT programmed;

Proof that not everyone should be allowed to program radios.

 

[DeoVindice]

Proof that not everyone should be allowed to program radios.

Unfortunately that's been proven out many times by that system, same for installation. I have a depressing number of photos of mangled coax and comical antenna placement caused by teknishuns afraid of a hole saw. Lawyers will have a field day with that stuff if it's ever found to contribute to an incident.

We use a 45-second TOT. Outside of ham operation and calling in shipping label information, I've never felt the need for longer than that.

 

[dispatchgeek]

Yeah, 60 seconds is more than enough, unless we're talking about ham radio operators.

I've run across radios programmed for 3 minutes before. I think that was either what it defaulted to, or someone thought it was really needed.

I've had some medics complain about 60 second TOT for HERN/Medcom reports. I totally get it for calling the hospital with a complex patient. A quick lesson on using "Break", dropping key and picking right back up seemed to appease them.

 

[ecps92]

I've had some medics complain about 60 second TOT for HERN/Medcom reports. I totally get it for calling the hospital with a complex patient. A quick lesson on using "Break", dropping key and picking right back up seemed to appease them.

Massachusetts OEMS sent this out, years ago for the Med Channels

Subscriber radio equipment shall be equipped with an automatic time-out-timer that will turn off the transmitter, and audibly alert the user, once a predetermined period of continuous transmission has expired; desirable to have timed period programmable on a channel-by-channel basis, but in no event any longer than 90 seconds, it is preferred that it be 60 seconds