hullo all radio-heads out there. I have 2 RTL-SDR's using sdr-trunk on Linux. seems to set up and program just fine, but no audio ever comes out. and most of the time status is IDLE when I can see strong signal on the monitored frequency. part of the issue is my county (Coffee) in TN has no frequencies assigned at all. So I am assuming two nearby sites are sharing?! anyway, any help would be appreciated. evidently all of TN has P25-II, so that's what I am using. NO radioreference account, so doing manual.
SDRTrunk RTL-SDR x 2, Linux, sdr-trunk
- Thread starter rivermonk
- Start date
lwvmobile
DSD-FME
You'll probably want to turn off those channels in the playlist for now, and swap to the tuner tab and browse around 769-775 or so Mhz, and look for a steady constant signal. That will most likely be the control channel. Then, set up the Phase 1 to that frequency and restart it, and see if you get any control or trunking going on. You can only use the Phase 2 if the control channel is Phase 2, which only perhaps 2 documented systems have that configuration currently, or you want to monitor that traffic channel directly, but requires manual entry of the WACN / SYS / and CC values. Otherwise, just find a steady signal that never ends, and plant the phase 1 channel on that exact frequency.
that seems to have done it. odd that the control is P25-1 but the used channels mostly show up as P25-2, isn't is? thanks so much for your help, I was getting ready to toss the whole idea due to frustration. I still don't really understand most of this, but hopefully the manpage will evolve.
It isn't odd that the Phase 2 control is Phase 1, from others on here, just about all Phase 2 systems have a Phase 1 control channel. The Phase 2 control channels are rare to be found as said above.
Check your email, top right!
thanks, I am kinda new to this forum. but impressed with all the helpfulness.
Post pics of your tuners tab with show spectrum enabled. Idle means it’s not seeing, or getting a good lock on the control channel. If your gain is set to auto, turn that if and start around 327.
