My take is that any paging tones that one happens to hear over P25 systems is because the system is simulcasting an analog channel that carries them. That's what is happening in my county. As soon as the P25 is 100% switched over, the fire paging will only go out over an analog channel. Tones sent over a digital system (P25 or other) do not decode reliably - the codec doesn't handle a tone well and the frequency ends up getting shifted.

Chuck



On 5/20/2018 2:15 PM, zlatiolais@yahoo.com [op25-dev] wrote:
 

Same here. I can hear our tones on the high band. I think it depends on how the core is sending them.

 

From: op25-dev@yahoogroups.com <op25-dev@yahoogroups.com>
Sent: Sunday, May 20, 2018 10:36 AM
To: op25-dev@yahoogroups.com
Subject: [op25-dev] Re: Why can't I hear fire tones?

 

 

Do the tones not go like voice over radio. Is it like a code that the scanner then changes into a beep?


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Posted by: Chuck Kelsey <wb2edv@roadrunner.com>
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