HT750/1250 Emergency Mode

[anehring43]

Ok, I'm trying to set up our radios to be more safer and user friendly.

I want to program the red button on top to be a MAYDAY button, meaning when they are in trouble, hit the button and it alerts all radios on our interior channel that there is a mayday and what radio is calling it. I have the second part of that already done (for a while actually) with the MDC-1 system; every radio has an ID. Example: the portables on engine 59 are numbered 59D1 through 59D4, the same goes for all other apparatus. The mobile radios are id'ed as 59D0, and yes they are maxtracs.

I've enabled the emergency button and went through the signalling configiration. I set it up as standard, then set the emergency revert to our interior ops channel.

sent plug and it accepts. Now I did this to a couple radios, when i pressed the red button, the screen will say Emerg in prg, meaning its sending that its in emergency mode. The radio will automatically transmit every 3 seconds or so, however its not transmitting that its a mayday, OR the mdc-1 encoding (which radio)

What am I doing wrong and how can I set this up to how I want it?

 

[RRSINC]

You are not doing anything wrong. What you are trying to do cannot be done with those radios.

Yes HT1250 radios can decode MDC ID's however when an emergency is transmitted it send a different data packet then the normal MDC ID which cannot be decoded by the 1250's.

In order to decode an emergency signal you need to find a radio with that specific function.

For instance a CDM1550 has the ability to decode the emergency signals.

I believe that it designed this way because in most cases you want the signal decoded by the dispatch console which in turns sends back a signal to the radio acknowledging the signal was received which reset the radio.

If you were to have multiple radios acknowledging the emergency there is a good chance that it would never make it to the console or for the matter any other radios then the 1st one that acknowledges it.

Not my best explanation but hope it helps.

Jason

 

[anehring43]

nope you explained it just fine...can't be done with the 1250s let alone a 750.