op25-dev

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Repeater Build attempts
by Doug Bade 05 Mar '13

05 Mar '13

Well it looks like in order to build this I am going to need a little more input from anyone who has succeeded. Every attempt with every OS I have tried has failed at some point due to lack of direct support for some modules and or failures to compile to outright incompatibility. Ubuntu 12.0.4 LTS got me the closest however when attempting to compile Zaptel, the compile fails with errors which googling them results in commentary that the Kernel is too new so I will need an older Kernel in Debian or Ubuntu. How old??? Good question. as all the notes in Allstar's build indicate CentOS 5.x is supported, nothing newer.. that does not help me much in the debian world. I tried several versions of CentOS 5.x , and all result in various modules being of incorrect versions available or would not compile. I tried CentOS 6.x and got closer but failed to compile Zaptel for the reasons stated above. So if the intent is to allow us to build over a wide array of OS's I can say that Isn't going happen. The modules are so critical that have been used that I have yet to find a version that will build. So unless someone wants to give some specifics in versions of OS that are currently running asterisk as well as op25 as well as GNURadio, I have been thus far unable to find a combination that supports all of them. I tried starting with Allstar and with XiPar and neither has support for GUI nor was I able to get a GUI to run, apparently that process eludes me and my limited research to get it running as well as patience. I would say with the current state of the docs, at best Linux experts seem to be the only group of builders that are going to be able to step through the minefield of a build. I am not criticizing the docs, I understand they are written to be generic in many ways, but the build requirements are far from generic in OS/Kernel requirements to get it running. While I am maybe a power user of Linux, I am not a developer. so I may be above my knowledge base attempting the build. I own and operate a dozen or so linux box's in my life including VMWare virtualization on CentOS at work. I thought the instructions looked do-able for my skillset. I do not mean to criticize as much as suggest a little more documentation on OS baseline starting points are in order.. As Debian and Ubuntu seem to build best, that maybe tell us what version is in use so we can get Zaptel to compile??? If that part fails, the rest is moot. Without Asterisk running the repeater part is dead. Doug KD8B

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Repeater Build
by Doug Bade 04 Mar '13

04 Mar '13

I am going to make a more scientific approach to the build, I decided to dig into Asterisk docs about platforms, I am not sure how tailored the Allstar Link versions of this is in their svn but will start with baseline specs in the Asterisk docs. It looks like Zaptel should be able to build on any 2.6 kernel which means up to 11.04 or so Ubuntu, or CentOS up to 6.x should work. A cannot recall how far I got on CentOS 6.x with allsar build but as Allstar is based on CentOS , that may be the closest match. I am going to concentrate on getting Zaptel to build.. Can someone tell me if ZTDummy is the only driver needed???? For a Sound card build??? It looks like CentOS 6.x Debian 6.x and Ubuntu 11.x should all be Kernel 2.6.x and in theory support asterisk repeater.. We shall see.. If I can get that working next will be what it takes to get GNURadio running. Doug KD8B

1 0

gr-fsk4 install Error: Unable to find 'pmt_swig.i'
by md123＠nycap.rr.com 04 Mar '13

04 Mar '13

becuase i am stuck on this on an error (AttributeError: 'gr_hier_block2_sptr' object has no attribute 'set_callback') i decided to try to build again. when trying to install the 4fsk demodulator i get this error: make[2]: Entering directory `/home/matt/gr-fsk4/src/lib' /usr/bin/swig -c++ -fvirtual -python -modern -I/usr/local/include/gnuradio/swig -I/usr/local/include/gnuradio -module fsk4 -o fsk4.cc ../../src/lib/fsk4.i /usr/local/include/gnuradio/swig/gr_basic_block.i:26: Error: Unable to find 'pmt_swig.i' note that when i run op25 the first output line is "Imported legacy fsk4". so now i am confused as to how grc is importing the fsk4 if i cant even install it? Cheers, Matt

1 0

Error: Port has too many connections.
by md123＠nycap.rr.com 04 Mar '13

04 Mar '13

if i don't disable the 'raised root cosine filter' then i get this error in the op25 properties box: Sink - bb(0): Port has too many connections. i already had to disable the 'wx gui fft sink' to get rid of the "AttributeError: 'gr_hier_block2_sptr' object has no attribute 'set_callback'" error which i believe stops the op25 python gui from running. has anyone else had to deal with this "too many connections" error? thanks guys!

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re displaying the raw IMBE data
by lynnolium2005 02 Mar '13

02 Mar '13

After a long time I have finaly got OP25 working, my thanks to the people who helped get it going and the numerous posts here that clarified issues. there is one change I would like to make to the code. this is to change the way the data is either displayed by wireshark or a new start command that will display the 88 bit rew IMBE data rather than the 144 bit interlaced data. I have been told that OP25 will display the data in thuis format but I will need help (step by step if possible) to do it

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updated build instructions
by ikj1234i 28 Feb '13

28 Feb '13

Folks Sorry for the pain - tried replying to Doug but that message may have been killed, not sure. Anyhow, I've updated the repeater wiki page with instructions for building a CLI-only version of asterisk - the prereqs for doing so should be very minimal. The asterisk CLI version is what I've always used (having started using * when there was no GUI) - ymmv. Max

3 2

Full asterisk support?
by n4dav 27 Feb '13

27 Feb '13

Hi Folks, new here.. Did a lot of looking around, but didnt see the answer to this. I want to use app_rpt as my repeater controler and support P25 + NBFM. I see a rx-to-asterisk app here, but not a corresponding asterisk-to-tx app. I saw a repeater app but didnt appear to support asterisk. Am I missing something or does it not exist? Thanks!

5 23

Exception running OP25
by md123＠nycap.rr.com 27 Feb '13

27 Feb '13

I am using using ubuntu 12.10 i am trying to run OP25 (python version 2.7.3), in GNU Radio Companion v3.6.3-35-g4435082f and i get an error. So I run the traceback command in terminal: ~$ python -m trace --count -C . op25_grc.py Here is the output with an error: Imported legacy fsk4 Using Volk machine: ssse3_32 Traceback (most recent call last): File "/usr/lib/python2.7/runpy.py", line 162, in run_module_as_main "_main__", fname, loader, pkg_name) File "/usr/lib/python2.7/runpy.py", line 72, in run_code exec code in run_globals File "/usr/lib/python2.7/trace.py", line 819, in main() File "/usr/lib/python2.7/trace.py", line 807, in main t.runctx(code, globs, globs) File "/usr/lib/python2.7/trace.py", line 513, in runctx exec cmd in globals, locals File "op25_grc.py", line 493, in tb = op25_grc() File "op25_grc.py", line 231, in __init_ self.wxgui_fftsink2_0_0.set_callback(wxgui_fftsink2_0_0_callback) File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/hier_block2.py", line 54, in getattr return getattr(self._hb, name) AttributeError: 'gr_hier_block2_sptr' object has no attribute 'set_callback' I really really want to get OP25 running but have not been able to figure out what is the solution to this error (AttributeError: 'gr_hier_block2_sptr' object has no attribute 'set_callback') . it'll take me ages to figure out how to debug in python. some threads have said its because gnuradio is an older version but in my case it is not. i am wondering if the question is too amateur or something because nobody is lending assistance. Any help will be so very much appreciated. Thanks.

2 1

Runtime error- ioctl(d_tap, TUNSETIFF, &ifr): Operation not permitted
by md123＠nycap.rr.com 25 Feb '13

25 Feb '13

Has anyone seen this error? i cant find anything on the web about this. I already had to disable the Waterfall sink and the FFT sink in order to get rid of the "AttributeError: 'gr_hier_block2_sptr' object has no attribute 'set_callback'" error. Now OP25 dies this way: Imported legacy fsk4 Using Volk machine: ssse3_32 RTL2832 Source block configuration: Read length (bytes): 262144 Buffer enabled: yes Buffer multiplier: 8 Buffer size (samples): 1048576 Samples per read: 131072 Buffer level: 50.0% Successfully initialised demod: "ezcap EzTV" Probing "e4k"...not found. Probing "fc0013"...not found. Probing "fc2580"...bad check value. Probing "fc0012"...not found. Probing "e4000"...not found. Could not find tuner automatically after probe Found RTL2832 device: ezcap EzTV (tuner: interface not implemented) Sample rate range: 900001 - 3200000 Hz Crystal frequency: 28800000 Hz Wait delay: 196.608 ms ioctl(d_tap, TUNSETIFF, &ifr): Operation not permitted Using legacy decoder_ff >>> Done I'm using Unbuntu 12.10, GNUradio 3.6.3, python 2.7.3, and NooElec R820T RTL2832 stick. I installed GNUradio using the build script on Balint's "how to build page" but OP25 I had to build from source because the build script there has a broken link. Any help will be much appreciated.

2 2

by md123＠nycap.rr.com 19 Feb '13

19 Feb '13

Does anyone know the command (using ubuntu) to permanently add a directory to the PYTHONPATH? Thanks in advance.

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