May 2013 - op25-dev - lists.osmocom.org

New (separate) GRC blocks: FSK4, decoder & Traffic Pane [1 Attachment]
by Balint 27 May '13

27 May '13

Hi folks, A quick update: I've added to gr-baz <https://github.com/balint256/gr-baz> some new OP25 blocks. I've split up the combined 'Decoder' block into the FSK4 and actual decoder (simple) parts. I've also added the traffic pane - you'll see how it fits together in the sample/OP25.grc Make sure you back up your old GRC file before you update so you don't end up in a nasty XML merge conflict! For those people that aren't hearing any audio, check if the traffic pane is showing you anything. For those wondering about talk of patches, instructions are here: http://wiki.spench.net/wiki/OP25 If you use r307+patch, you can also check the console to see if decoder information starts appearing to see if valid frames are being detected. Balint

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File source OK but USRP no audio
by souf308 25 May '13

25 May '13

Hi guys. First thank everybody for helping me those previous week. I'm really stuck on something now that I can't understand: When I' using the file source in OP25.grc everything seems working perfectly, I got the 4 ligns in the Dibits and I can hear someone speaking. HOWEVER when I use my USRP B100 here is the situation: I have 4 perfect lignes but NO AUDIO. Moving from the File source to the USRP, I dont touch any audio sink frequency or interpolation of the Rational Resampler or Channel rate so logicaly the probleme should not be coming from here.. Im pretty sure that I applied the patch r307. Furthermore this patch is also to make the audio work wich is the case with the file source so what..? Any suggestions please? Why the audio is working with the files source but not with the USRP? Thank you very much Souf

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Next branch (3.7)
by Matt D 24 May '13

24 May '13

Hi everyone, I am sort of weary of updating to using next branch (3.7) from 3.6.3 because I don't want lose my balance and get dumped. But I was told there is a feature there I may need. So is anyone using OP25 with 3.7 successfully? Cheers, -- Matt D ------------

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data unit handler
by Matt D 22 May '13

22 May '13

Hi guys, I have a pretty straight forward question. In directory op25/blocks/src/lib there is a file called logfile_du_handler.h and the comments within say that the code writes frames to a log file and that the name of the log file is d_log. How do we access this log file? Thanks a bunch -- Matt D ------------

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