OP25 CLI difficulty with trunk.tsv

[code37f]

Hi ,
I am a newbie with both Linux and OP25 and I’m listening to a P25 Phase II system.

What a learning curve......nice distraction from current events.

rtl-sdr v.3 running U19.04. decoding TGs with audio from -t. (no trunk.tsv in CLI).

rx.py --args 'rtl' --gains 'lna:49' -f 853.4375e6 -d 900 -q 0 -S 1000000 -D cqpsk -2 -V -U 2> stderr.2

When I run trunk.tsv in CLI, OP25 doesn't run.

Any insight would be appreciated.

 

[wgbecks]

I am not completely clear on what you're asking. However, if you have a properly crafted trunk.tsv file, then all that you need to do is to add -T trunk.tsv to your rx.py command line instead of the -t option.

rx.py --args 'rtl' --gains 'lna:49' -f 853.4375e6 -T trunk.tsv -d 900 -q 0 -S 1000000 -D cqpsk -2 -V -U 2> stderr.2

Note: The -f 853.4375e6 (frequency) is not required when starting rx.py with -T trunk.tsv as it is when starting with the -t option when using boatbod's opp25 distro. However, I do believe it is still a requirement regardless of use of -T trunk.tsv with Max's (Osmocom) distro.

 

[code37f]

wgbecks thanks for the reply, I tried the CL above and I get an empty command line when I run it.



I will check and edit the tsv spreadsheet and check the TG file name etc. I'm using boatbod.

And thank you for your "Note".

 

[wgbecks]

The trunk.tsv files are finikey in that you have to input the user data in the specific format with tab characters separating fields. I'll be happy to build one for you if you want to let me know the system that you want to monitor and the nearest site to your location.

Just to verify, were you able to obtain Trunk Signaling Blocks (tsbk's) from the system when starting rx.py with the -t option? Further, if op25 did begin to decode the control channel then it will follow and decode all TG's if you tap the t key on your keyboard making it much easier to get past the initial startup phase before moving onto crafting and testing your trunk.tsv file.

Optionally, I' am willing to help you over the phone and via TeamViewer if you want to send me a PM to establish contact information.

Bill