SDRTrunk SDRTrunk Unrecognized OP OPCODE Issue

[kawilliams]

Started getting this error month or so back while listening to the OKWIN P25 system. Can't hear anything anymore and not sure what else to try any suggestions? I used to get the Beckham and Custer county sites no problems. I can hear the talkgroups being broadcasted on broadcastify calls I just can't pick them up locally.

 

[DSheirer]

Lot's of CRC errors mean you're not getting a good decode. Check your PPM setting on your tuner and verify that the signal is strong enough.

 

[kawilliams]

PPM is set to auto I tried adjusting it but no fix. For now as far as I can tell the freq for the two towers I am hitting drifted a bit. I’ve updated the freq in the playlist editor and have a lock on the control channel. The details tab isn’t filling in but the messages tab is just non stop scrolling text. Not sure what would cause that… Could my tuners be dying?

 

[kawilliams]

So it looks like when the control channel gets the voice freq and it tunes to it on a 3rd tuner it doesn’t get a freq lock either?

 

[kawilliams]

After some playing and reading. I set my tuner manually to the correct freq. Then I adjusted the PPM until it was center of the freq and that’s at + 82ppm however it still won’t lock onto the control freq. 3-4 months ago I was picking it up fine with 0ppm and set to auto adjust I haven’t made any other changes. I am not having issues with any other frequencies.

 

[DSheirer]

So it looks like when the control channel gets the voice freq and it tunes to it on a 3rd tuner it doesn’t get a freq lock either? View attachment 161471

In this screenshot, the signal is not centered. The yellow line indicates where the decoder is trying to lock the signal and it's showing off to the right.

Shutdown all channels and then work through each tuner where you manually set it to a known frequency and then manually adjust the PPM to align the signal to the known frequency value.

It would seem odd to have a tuner that originally worked with 0 ppm and then have to apply 82 ppm to correct it.