No Voice on DRM Tier III Trunk

[Baby Baby]

The patient is this system...
Capacity Max Tier III Trunking
Network:3
Site:83
Network Model: HUGE
https://www.radioreference.com/db/site/41922

The problem is that I can't get SDRT
to decode voice traffic.

I'm a three year veteran of the SDRT wars.

This stuff looks OK...
Signal strength.
CC activity messages.
No FADEs.
I get CHANNEL GRANT,
the voice traffic freq pops up
on the FFT and SDRT covers it.

Stuff I have set and checked...
Ignore checksum is NEEDED and ON.
LSN/LCN/Freq map has been
stared at ad nauseum.
Catchall alias for range of TGs
with Listen ON.

Stuff to consider...
I'm running v0.6.0-beta-4.
I can run Connect+ trunks
with no problem.
gqrx > UDP > dsd (dsd-fme) decodes the
voice freqs just fine.

Goofy stuff...
Call duration is blank or 0.1.
Call info doesn't show on the
Speaker icon LEFT RIGHT line.
No recording file if I turn
on recording for the catchall alias.
Both slots on the CC show up as CONTROL.
Radio checks and data calls show up
on the Events tab and that is consistent
with what I see when using dsd.

Within the past year I gave up
trying to fix this and wrote my
own scanner to drive gqrx/dsd.

I'm back to trying to get this fixed
in SDRT.

I'll try to append/submit a log file that
I think might contain some clues.

[DaveNF2G]

Is the system carrying voice traffic?  Can you monitor it with a scanner or other software?

You are getting a lot of CRC errors, which are not helping.

[pei 0006]

I am experiencing similar

Getting 0.1 duration calls and no voice on a new capacity max Tiii system. I run DSD+ and it will decode the voice.

[CDTbolt10033]

DMR (MOT) Tier III Capacity Max Trunking

I too am getting only 0 or 0.1 group call durations as well but group calls are working for me. 

[dave38...@gmail.com]

Both DSDPlus and SDRTrunk have gain and PPM settings. If DSDPlus works, and SDRTrunk does not, it "could" be a reception issue.  Post a pic of the waterfall locked on the cc and post pics of your tuner tab with the dongle selected.

[Baby Baby]

Two pics are attached.  One has the voice freq active and the other has the only the CC active with the tuner info showing.

[DaveNF2G]

It looks like you have started a UHF system in addition to this one.  What happens if you allow all of the dongles to follow 900 MHz by not starting the other system(s)?

[Baby Baby]

The other tuners were not active and are not needed to follow the troublesome site.

Nevertheless, I removed them and took another couple of snapshots.

I didn't mention this in my original post, but I'm using the RTL-SDR LNA

in order to get what I consider to be sane signal strength.