2-Tone NX5200 and NX5700

[firemedic834]

Hello.

I have 2-tone decode set-up and functioning. I’m trying to fine tune the settings. Follow along below…

1. The A-B tones are received
2. The radio alerts using the selected special tone after the B tone finishes.
3. With the length of the special alert tone, it “cuts off” the voice of the dispatcher. I have shortened the length of the special tone. The special alert tone is what should wake the crews up at night, so it can’t be shortened anymore.
4. Is there a way to make the radio frequency open sooner, still play the special alert tone, and not miss part of the dispatch information?

Thank you.

 

[kd4efm]

Hello.

I have 2-tone decode set-up and functioning. I’m trying to fine tune the settings. Follow along below…

1. The A-B tones are received
2. The radio alerts using the selected special tone after the B tone finishes.
3. With the length of the special alert tone, it “cuts off” the voice of the dispatcher. I have shortened the length of the special tone. The special alert tone is what should wake the crews up at night, so it can’t be shortened anymore.
4. Is there a way to make the radio frequency open sooner, still play the special alert tone, and not miss part of the dispatch information?

Thank you.

3) need to be a little more creative with the tone so your not over-running the B tone timing.

4) it all about the timing settings, if the B tone is long it may cause the radio to not unmute if you shorten the timer TOO MUCJH.
Have to be at a bench with a monitor testing it so you don't cause issues in a real time environment.

5) Instant recall, even without an SD CARD, you can use the internal storage to play back the call **** my suggestion.

 

[mmckenna]

I think the only way around this is to train dispatchers to wait before passing voice traffic, or have them repeat it twice.

We ran this at our fire station for years, and you have to balance the length of the alert tone with the dispatchers popping up.

Other trick is to keep the alert tone really short, but use one of the output pins on the rear of the radio to trigger the lights as the wakeup.

 

[firemedic834]

3) need to be a little more creative with the tone so your not over-running the B tone timing.

4) it all about the timing settings, if the B tone is long it may cause the radio to not unmute if you shorten the timer TOO MUCJH.
Have to be at a bench with a monitor testing it so you don't cause issues in a real time environment.

5) Instant recall, even without an SD CARD, you can use the internal storage to play back the call **** my suggestion.

Alright, I remixed the special alert tone to a tone that should wake up the crews and shortened length of the special alert tone to 0.8 total seconds. Using a secondary channel, so not to cause problems in the real world, it sounds fine when I send the pager tones from another radio. If the dispatcher jumps right on the mic after the A-B tones quit… that creates the problem.

 

[firemedic834]

I think the only way around this is to train dispatchers to wait before passing voice traffic, or have them repeat it twice.

We ran this at our fire station for years, and you have to balance the length of the alert tone with the dispatchers popping up.

Other trick is to keep the alert tone really short, but use one of the output pins on the rear of the radio to trigger the lights as the wakeup.

Fair enough and makes sense. Breaking habits at the dispatch center is easier said than done. 😜

How many milliseconds was your special alert tone?

 

[mmckenna]

Fair enough and makes sense. Breaking habits at the dispatch center is easier said than done. 😜

Yeah, I get it. Might take some time, a few asks for repeats, but they'll figure it out.

How many milliseconds was your special alert tone?

I don't recall. This was 10 years ago when I still had a fire department I supported. It was also on a Motorola CDM-1250. But same issue.