Im currently in Jones county Texas. Am learning sdr. I have sdr trunk working , and decoding some p25. Radio reference site says 158.850 is the freq being used. But when i put that in, it doesnt say control on trunk program. I have currently 1 rtl-v3 . And recieved the m6 rattlesnake antennas for high frequency. And will be ordering my second v3 dongle this week. I am picking up conversations but have yet to find the control channel. Any help will be greatly appreciated. I was able to use Abilene TX control channel and see it connect. But they are in next county. Was hoping to find Jones county control freq.
Looking at Jones County in the
database, frequency 158.85 is licensed as a
conventional channel to
Stamford, It;s listed as used for the PD as well as a talk-around frequency for the FD. It is not a trunked system; so, while you could hear conversations if tuned to that frequency, you won't see a control channel used.
You do have 4 trunked systems in your county that you might could monitor:
Abilene's system
American Electric Power
Big Country Electric Cooperative
and
Oncor
The American Electric Power site in your county is using a P25 Phase II control channels which, for now, no scanners can handle. See the note on the system's page regarding that, as well as what programs (that you can use for your SDR) can handle that.
The Big Country Electric Power Cooperative system is a DMR Tier 3 system. No one, as yet, has identified any talkgroups in use & submitted those to the database for updating.
There are no other systems, in your county, licensed as trunked, but at times some of the business licenses listed as IG may actually be used as a trunked system, though not licensed as such. Several here in my area fit that pattern.