There's an unidentified channel on 454.6 MHz that is transmitting what sounds like 600-baud followed by 1200-baud pager bursts. I can't find any matches to the RR database. My guess is these might be public safety/first responder paging ... possibly from the CNYICC system. I'm receiving the signal just outside of Phoenix area.
Does anyone have info on this channel?
Denny

Does anyone have info on this channel?
Denny
