op25-dev

op25-dev@lists.osmocom.org

1 participants
312 discussions

RE: HELP lol
by Balint 20 Apr '12

20 Apr '12

OK sorry folks - this is what one should expect when they're dealing with ancient code (I really ought to update at some point!). I've fixed the gr-baz/python/op25.py code to first try the new OP25 blocks (with the slicer), and then fallback to the old version (without the slicer). Let me know if this works! Thanks, Balint

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gr-baz : op25.py has dependence on fsk4
by Richard Clarke 19 Apr '12

19 Apr '12

Hi Balint, I notice that your op25.py module still has a dependence on the old Radio Rausch FSK4 demodulator<http://radiorausch.googlepages.com/GnuradioFourLevelFSK.html> that the OP25 project used to use but have now incorporated into their own source files. I was just wondering if there was any reason you didn't use the op25.fsk4_demod_ff rather instead of fsk4.demod_ff? You have, on the other hand, used the op25 slicer equivalent op25.fsk4_slicer_fb(levels). Just curious. Thanks Cheers Richard On 20 April 2012 11:10, Balint <balint256(a)hotmail.com> wrote: > I’ve just accepted the git pull request submitted by Alex Csete (thank > you!) to fix the build issue on v3.6 of GNU Radio (tested by ‘zignig’), so > if you grab the latest, hopefully this issue will disappear!**** > > ** ** > > (If other people have encountered this problem, please let them know too…) > **** > > ** ** > > *From:* op25-dev(a)yahoogroups.com [mailto:op25-dev@yahoogroups.com] *On > Behalf Of *Richard Clarke > > *Sent:* Friday, 20 April 2012 8:24 AM > *To:* op25-dev(a)yahoogroups.com > *Subject:* Re: [op25-dev] Re: World's cheapest P25 receiver: $20 RTL2832 > dongle + new OP25 Decoder block with DES-OFB for GRC!**** > > ** ** > > **** > > Hi,**** > > ** ** > > I've just tried building the gr-baz module on a couple of different > systems but I'm encountering a make error along the lines of: > ./baz_swig.cc: No such file or directory**** > > ** ** > > I note someone else has also encountered the same error and pasted their > make output to pastebin (http://pastebin.com/y6dUAxC1). This is the same > error I'm getting. Anyone got any clues? Is this a generated file that > isn't being generated, or a file that hasn't been included in the svn repo? > **** > > ** ** > > Thanks**** > > ** ** > > Cheers**** > > Richard**** > > ** ** > > On 6 April 2012 02:14, Balint <balint256(a)hotmail.com> wrote:**** > > **** > > LOL, I thought someone might say that J**** > > **** > > Nice work at that price!!!**** > > **** > > *From:* op25-dev(a)yahoogroups.com [mailto:op25-dev@yahoogroups.com] *On > Behalf Of *ikjtel > *Sent:* Friday, 6 April 2012 12:07 AM > *To:* op25-dev(a)yahoogroups.com > *Subject:* [op25-dev] Re: World's cheapest P25 receiver: $20 RTL2832 > dongle + new OP25 Decoder block with DES-OFB for GRC!**** > > **** > > **** > > **** > > **** > > > Firstly, thank you to Max for the Slashdot mention!**** > > **** > > > Ha ha, it's a pleasure to see this project move forward. > > The cheapest one I've ever built was for $1.00 - picked up an old crystal > scanner at a hamfest that happened to have a crystal in it on the proper > frequency for a local P25 station. It only needed a disc-tap using parts > from the junkbox... > > Max**** > > > > **** > > ** ** > > -- > *SCOTT ADAMS: Normal people believe that if it ain't broke, don't fix it. > Engineers believe that if it ain't broke, it doesn't have enough features > yet.***** > > **** > -- *SCOTT ADAMS: Normal people believe that if it ain't broke, don't fix it. Engineers believe that if it ain't broke, it doesn't have enough features yet.*

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congrats to Balint: on Slashdot ! ! !
by ikj1234i 19 Apr '12

19 Apr '12

http://hardware.slashdot.org/story/12/03/31/1914217/software-defined-radio-…

5 9

GRC error
by hotfire00 08 Apr '12

08 Apr '12

Hi everyone, New to GNUradio and OP25. I have the OP25 block installed in GNU Radio Companion and can build a flow graph with no problem. When I try to execute the flow graph I get this error: Traceback (most recent call last): File "/home/aaknitt/Documents/top_block.py", line 53, in <module> tb = top_block() File "/home/aaknitt/Documents/top_block.py", line 34, in __init__ self.op25_decoder_0.create() File "/usr/local/lib/python2.7/dist-packages/baz/op25.py", line 65, in create self.p25_decoder = op25.decoder_ff(self.op25_msgq) AttributeError: 'module' object has no attribute 'decoder_ff' I'm guessing this is because I don't have something installed properly, but I can't put my finger on how to remedy the problem. Any advice or suggestions would be appreciated. Regards, Andy

4 4

GRC Flowcharts
by allanjs1986 07 Apr '12

07 Apr '12

Yes me again haha :-) I thought it might be a good idea for the less advanced in the group (like me) and others, for members to save there flow chart files in the files section. Like a P25 decode flowchart, using the gr-baz project. FM Demodulation and any other that may be useful.

2 7

./scope.py import error
by allanjs1986 07 Apr '12

07 Apr '12

Hi yes its me again lol. When i try the scope command i get the following. Does this indicate that gnuradio is not installed correctly. ./scope.py -a -v 10 -g 50 Traceback (most recent call last): File "./scope.py", line 40, in <module> from gnuradio import audio, eng_notation, fsk4, gr, gru, repeater ImportError: cannot import name fsk4 I would just like to thank everyone for your support

2 2

New Illinois P25 / DMR Group
by Mark Thompson 05 Apr '12

05 Apr '12

A new group has been created for those interested in the amateur radio use of the commercial digital voice technologies of P25 & DMR in Illinois. You can join the group at: http://groups.yahoo.com/group/IllinoisP25-DMR/ Look forward to your participation in the group.

1 0

Newbie Error question <error: libpcap library not found>
by allanjs1986 04 Apr '12

04 Apr '12

Hi gang i have installed gnu radio and when i get to the ./configure command i get the following error checking for pcap_open_live, pcap_open_dead, pcap_close, pcap_next, pcap_next_ex, pcap_datalink, pcap_inject, pcap_dump, pcap_geterr in -lpcap... no configure: error: libpcap library not found. Thanks for your support Allan

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Post-processing P25 data
by ahenney 29 Mar '12

29 Mar '12

If I record a few seconds of data from an encrypted P25 trunked system, can somebody tell me what type of encryption it is and perhaps the key/logical ID assigned? Thanks, Alan N3LGE

1 0

Another New Member
by ryanharm 25 Mar '12

25 Mar '12

Hi All Im a newbie attempting to install op25 under Cygwin. Will let you all know how that goes. I am slowing working through all the error messages and installing all the missing packages. I work for a large radio equipment manufacturer with an emerging interesting in P25. I can't wait to get op25 installed and see how well it works :) Regards Ryan

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