Greenie questions about listening to UCA with SDR-Trunk

[Sp8ns5982]

I've recently gotten an RTL-SDR v3 dongle and have been trying to listen around and had a few questions. Getting right to the point, I'm trying to use SDR-Trunk to listen to UCA but I'm unable to get any data from the control channels an I don't quite know why. To my knowledge I should have everything setup correctly but I get nothing back. Listening to a large range of the other frequencies I can occasionally see activity or a call but I don't hear anything and when I view the logs it says that they're all encrypted? Is there something that I'm missing? I'm more than happy to share more about my setup, right now I don't know what would be useful.

 

[bhall7]

For UCA, use Unitrunker, not SDRTrunk.

 

[GTR8000]

SDRTrunk does not support Motorola Type II trunk tracking via the control channel, it can only decode P25 voice transmissions by tuning to the traffic channels directly. You'll need to use different software, such as Unitrunker, to track the system.

 

[Sp8ns5982]

Okay, thank you. I had tried Unitrunker but hadn't been able quite figure it out but I'll give another go at it.

 

[enosjones]

UCA will eventually switch to p25, but as of right now its Motorola.. so yeah unitrunker for now SDR trunk or dsdplus later

 

[gldavis]

Did you get it working?