[op25-dev] Why can't I hear fire tones?
Chuck Kelsey firstname.lastname@example.org [op25-dev]
op25-dev at yahoogroups.com
Sun May 20 18:42:49 UTC 2018
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.
On 5/20/2018 2:15 PM, zlatiolais at 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 at yahoogroups.com <op25-dev at yahoogroups.com>
> *Sent:* Sunday, May 20, 2018 10:36 AM
> *To:* op25-dev at 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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