- op25-dev - lists.osmocom.org

Re: [op25-dev] P25 decoding using RTL_SDR

by Sean Kealy superstardodge＠yahoo.com [op25-dev]

Been away from this project for awhile, Where can I get a copy of the live cd? -------------------------------------------- On Sun, 7/15/18, gnorbury(a)bondcar.com [op25-dev] <op25-dev(a)yahoogroups.com> wrote: Subject: [op25-dev] Re: P25 decoding using RTL_SDR To: op25-dev(a)yahoogroups.com Received: Sunday, July 15, 2018, 7:05 PM Without further information (i.e. stderr.2 logs) it's hard to say for sure what the problem is. Most likely although your fft plot "looks" good you may not be accurately tuned. Typically you'll need to adjust ppm (-q parameter) to bring the tuning into alignment enough that the p25_demod locks on. When that happens you should see the TSBK counter start to increment. If you're using the "boatbod" fork you can use the mixer plot (key #5) to dial in the ppm and fine tuning more accurately than is possible with the fft plot alone. Furthermore, you can also use a nac value of 0 if you don't know or cannot verify the nac of the system you are trying to tune. #yiv5719345116 #yiv5719345116 -- #yiv5719345116ygrp-mkp { border:1px solid #d8d8d8;font-family:Arial;margin:10px 0;padding:0 10px;} #yiv5719345116 #yiv5719345116ygrp-mkp hr { border:1px solid #d8d8d8;} #yiv5719345116 #yiv5719345116ygrp-mkp #yiv5719345116hd { color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px 0;} #yiv5719345116 #yiv5719345116ygrp-mkp #yiv5719345116ads { margin-bottom:10px;} #yiv5719345116 #yiv5719345116ygrp-mkp .yiv5719345116ad { padding:0 0;} #yiv5719345116 #yiv5719345116ygrp-mkp .yiv5719345116ad p { margin:0;} #yiv5719345116 #yiv5719345116ygrp-mkp .yiv5719345116ad a { color:#0000ff;text-decoration:none;} #yiv5719345116 #yiv5719345116ygrp-sponsor #yiv5719345116ygrp-lc { font-family:Arial;} #yiv5719345116 #yiv5719345116ygrp-sponsor #yiv5719345116ygrp-lc #yiv5719345116hd { margin:10px 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5 years, 8 months

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P25 decoding using RTL_SDR

by Nishant Parepalli nishantparepalli＠yahoo.in [op25-dev]

I have been trying to decode P25 signal using RTL2832U and ubuntu 16.04. I had run the rx.py script from the Op25 rep with the arguments. The FFT seems to be right. However I have no audio nor any NAC or tsbks being identified. Can anyone point out where I am going wrong? TIA

5 years, 9 months

2
1
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SkyWave Linux

by Dick Wad bwmzzzx＠yahoo.com [op25-dev]

Has anyone else tried to use the SkyWave linux distro yet besides me? It's based off the Ubuntu 16 LTE. I have installed this to my laptop and then just for grins installed the boatbod version of op25 on top of it. To my suprise the op25 is working along with cubicsdr several other utilities on the distro. I was even able to use my hackrf and ham-it-up box to search around the lower HF bands too. I did try to load SkyWave onto my windows 7 laptop at work but it lost it's network ability. Still trying to figure that one out. Anyway, that's all and can't wait to hear some other stories regarding this as well. 73's

5 years, 10 months

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Why can't I hear fire tones?

by nokoa3116＠gmail.com [op25-dev]

Before a fire dispatch they have a few beeps, I don't think it's for paging, I think just attention. They also have a beep everyonce in awhile in the police channel during restricted traffic. I cannot hear those using OP25, interested to know how I might get that to work?

5 years, 10 months

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Control Channel timeout

by atms169＠yahoo.com [op25-dev]

Anyone run into this? 1528588736.792124 control channel timeout 1528588736.825383 control channel timeout Thanks

5 years, 11 months

2
1
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RPi's 3 for 16GB or 32GB?

by atms169＠yahoo.com [op25-dev]

Anyone have an image for a 16GB or 32GB Raspberry pi 3? Using the RTL-SDR Thanks Aaron

5 years, 11 months

7
22
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RTL-SDR and OP25 on Linux Mint 64-bit

by mpuppet＠yahoo.com [op25-dev]

Hello everyone, First of all: Thank you to the admins for granting me access to this group! :) I am a musician and IT professional living in southern California, but I have little experience with radio. I recently bought an RTL-SDR dongle (the silver one) and I successfully got it working on Win10 with HDSDR and DSDplus, so I can decode DSD and P25 phase I, mainly. I also have an installation of Linux Mint, 64-bit. I'm running everything on a gaming PC that I built, so it's got a lot of speed and RAM. Before I gained access to this group, I followed this PDF to setup the dongle on Linux Mint: https://ranous.files.wordpress.com/2018/02/rtl-sdr4linux_quickstartv2-18.pdf https://ranous.files.wordpress.com/2018/02/rtl-sdr4linux_quickstartv2-18.pdf I then managed to get OP25 installed. Once I gained access to this group and started to skim over the various tips and tutorials, I took a few days to decide what options I wanted to try: Raspi+OP25? Ubuntu 14.04 32-bit in a VM? Or stick with Linux Mint? I decided to try the Ubuntu 14.04 32-bit tutorial yesterday. I spent the entire day trying to get Ubuntu 32-bit installed in a VM before I realized it didn't like that I was trying to give it 16GB of RAM. 8GB did the trick. But after following the tutorial found here from 2017, OP25 generated a lot of errors and decided to put it down and go back to Mint for a while. Through the tutorials and RadioReference.com, I managed to find a local p25 control channel for the police. So I setup a trunk.tsv file and trunkk.tsv with the groups I wanted to listen to. As of this morning, I was able to run OP25 in a terminal window in Mint, tuned to 470.025, using rx.py. The command I am running is: python rx.py --args 'rtl' -g 65 -f 470.025e6 -N 'LNA:49' -2 -V -v 0 -S 1000000 -q 2 -T trunk.tsv The problem is, I'm not sure if it is working because: 1. I hear no audio (using an external sound module, alsamixer is working properly to route audio to this device) 2. When I run the script with the above command, my terminal window fills up with the error "tuning error +1200". The frequency displays in the lower left corner as 470.025000. Pretty sure I'm doing something wrong, lol. Any help would be greatly appreciated. Thanks, MP

5 years, 11 months

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PDF Request - TIA 102 AABC - Trunking Control Channel Messages

by rhodey orbits rhodey＠anhonesteffort.org [op25-dev]

Greets All, I've found references to the TIA 102 AABC standard all across the web and other P25 standards documents, but I've never been able to find a copy of this document itself. Could anyone on this list point me in the direction of a copy? I think it'd be great if these documents were all checked into OP25 source control or uploaded on the Wiki somewhere. I really appreciate any help, thanks! -- rhodey

5 years, 11 months

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Public archive / unrestricted op25-dev group?

by Harald Welte laforge＠gnumonks.org [op25-dev]

I'm just quoting an (anonymized) excrept from an IRC conversation I had: ==== 19:42 < fooo> Does anyone know Max who is the main contributor to OP25 project? We're trying to run OP25 on XTRX and with many forks it's a bit difficult to understand what works and what doesn't (not to mention the setup is completely non-trivial by itself) 19:45 < Baaaaaaar> i guess.. no one? wasn't that abandoned years ago? 19:46 < baaaaaz> just receiving? maybe it's easier to get it working with rtl-sdr first and then work from there 19:50 < fooo> Not really abandoned - last commit Apr 27, 2018 19:50 < fooo> "max" branch 19:50 < fooo> There are also several forks which were never merged... 19:51 < fooo> baaaaaz, It doesn't really matter rtl-sdr vs XTRX since it's GnuRadio. It's that most how-tos are completely outdated and are not compatible with the modern GNURadio... 19:52 < fooo> Ideally we'd like Tx too - I saw someone on YouTube showing Tx and OP25 has a repeater mode. But yes. at least Rx would be nice 19:53 < baaaaaz> I see 19:54 <@LaF0rge> fooo: just contact their mailing list? 19:54 <@LaF0rge> Baaaaaaar: it's less abandoned than DECT or TETRA 19:55 <@LaF0rge> fooo: op25-dev(a)yahoogroups.com 19:55 < fooo> LaF0rge, Ok, thanks. 19:56 < fooo> Just curios - does he has any page/blog/LinkedIn? I don't think I've ever seen him at OsmoDevCons? 19:57 <@LaF0rge> fooo: none of the OP25 guys has ever showed up in person at any event. I guess they were originally from AU, so quite a bit far? 19:57 < fooo> AU = Australia? 19:57 <@LaF0rge> fooo: yes 19:58 < fooo> I see 19:58 < fooo> Looking at the commit history it's pretty much only Max who is contributing 19:59 <@LaF0rge> but maybe I remember wrongly. In any case, you won't find any APCO25 in Europe [not that I know of] so the "classic Osmocom people" have limited use for playing with it 20:17 < fooo> Btw, https://groups.yahoo.com/neo/search?query=op25 returns empty result 20:25 < Baaaaaaar> like i said... dead 20:29 < fooo> I don't think the project is dead, they just don't know/want to run it as a real community project... 20:29 < fooo> I mean they probably just care about scratching their own itch. Which is not bad, it's just not community 20:30 <@LaF0rge> the op25-dev mailing list is active. I'm following it. Many posts in april, few in may 20:31 <@LaF0rge> op25-dev-subscribe(a)yahoogroups.com should work 20:33 <@LaF0rge> https://groups.yahoo.com/neo/groups/op25-dev ==== All the above are long-term Osmocom developers. So as you can see, it's easy to jump to wrong conclusions, if most development happens out of master, and if the yahoo group is restricted/hidden and not publicly archived :) I'm not saying the fault is with OP25. If people want to jump to quick conclusions without informing themselves properly, they have no right to complain. And of course it's the OP25 developers decision how to run their project and their communications mechanisms, but I couldn't help but wonder and raise the questions below: Is there any specific reason that the op25-dev yahoo group is * restricted (i.e. no public archive) * not listed in the yahoo group index (makes it hard to find) I would argue that it's a FOSS project, and information related to it should be public rather than hidden. I also have an archive of op25-dev at least from March 2012 onwards that I'd be willing to share. We could import it into the lists.osmocom.org mailman so would have a web-accessible archive that can be indexed by search machines, etc. You could of course also migrate to a list on lists.osmocom.org, but that is of course a separate question, and always causing lots of fall-out, with everyone having to update their filter rules, aliases, etc. - so maybe not such a good idea. Let me know what you think about any of the suggestions above. Do with them what you like, it's just a friendly comment from your friends involved in other Osmocom projects... And btw: If anyone ever wants to show up for OsmoDevCon, please do reach out, we'd be more than happy to learn about OP25 and the people behind it! Regards, Harald -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

5 years, 11 months

3
4
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Wireshark plugin

by Matt Ames matt.ames7bc＠gmail.com [op25-dev]

Hi Guys, Does anyone know where the code went for this? It used to be hosted under http://op25.osmocom.org/svn/trunk/wireshark/patches Cheers, Matt

6 years

1
1
0 0

Some help with Error in `python' please

by kc9lwk＠sbcglobal.net [op25-dev]

Sorry, if there are <code tags> then I missed them. ./multi_rx.py -c rtl.cfg.json linux; GNU C++ version 4.8.5; Boost_105400; UHD_003.009.007-0-unknown device: {'gains': 'lna:49', 'args': 'rtl=0', 'ppm': 21, 'rate': 250000, 'frequency': 441287500.0, 'tunable': False, 'offset': 16000, 'name': 'rtl0'} gr-osmosdr v0.1.x-xxx-xunknown (0.1.5git) gnuradio 3.7.12.0 built-in source types: file osmosdr fcd rtl rtl_tcp uhd miri hackrf bladerf rfspace airspy redpitaya Using device #0 Realtek RTL2838UHIDIR SN: 00000001 Found Rafael Micro R820T tuner [R82XX] PLL not locked! Exact sample rate is: 250000.000414 Hz [R82XX] PLL not locked! channel (dev rtl0): {'plot': 'fft', 'name': 'dmr', 'excess_bw': 0.2, 'symbol_rate': 4800, 'destination': 'udp://127.0.0.1:56121', 'demod_type': 'fsk4', 'filter_type': 'rrc', 'frequency': 441287500.0, 'if_rate': 24000} *** Error in `python': malloc: top chunk is corrupt: 0x0000000001924380 *** python --version Python 2.7.13 cat /etc/issue Welcome to openSUSE Leap 42.3 rpm -q gnuradio gnuradio-3.7.12.0-17.1.x86_64 ./rx.py --args 'rtl=0' --gains='LNA:48' -S 250000 -q 21 -f 859462500 -o 16000 -d -100 -O default --nocrypt -v 10 -T IDPS-trunk.tsv -U -V -w 2> /dev/null linux; GNU C++ version 4.8.5; Boost_105400; UHD_003.009.007-0-unknown gain: name: LNA range: start 0 stop 0 step 0 setting gain LNA to 48 supported sample rates 250000-2560000 step 24000 *** Error in `python': free(): invalid pointer: 0x0000000002ef6890 *** ======= Backtrace: ========= /lib64/libc.so.6(+0x740ef)[0x7f71f6cb60ef] /lib64/libc.so.6(+0x79646)[0x7f71f6cbb646] /usr/local/lib64/python2.7/site-packages/op25_repeater/_op25_repeater_swig.so(+0x419f9)[0x7f71e1a499f9] /usr/lib64/libpython2.7.so.1.0(PyObject_Call+0x46)[0x7f71f7287bd6] /usr/lib64/libpython2.7.so.1.0(PyObject_CallFunctionObjArgs+0x15d)[0x7f71f728857d] /usr/local/lib64/python2.7/site-packages/op25_repeater/_op25_repeater_swig.so(+0x16438)[0x7f71e1a1e438] /usr/lib64/libpython2.7.so.1.0(+0xb05e7)[0x7f71f72b45e7] /usr/lib64/libpython2.7.so.1.0(+0xd004f)[0x7f71f72d404f] /usr/lib64/libpython2.7.so.1.0(PyDict_SetItem+0x5a1)[0x7f71f72b6791] /usr/lib64/libpython2.7.so.1.0(_PyObject_GenericSetAttrWithDict+0xab)[0x7f71f72b9eab] /usr/lib64/libpython2.7.so.1.0(PyObject_SetAttr+0x6a)[0x7f71f72ba0ba] /usr/lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0xf26)[0x7f71f72f1176] /usr/lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x244)[0x7f71f72fafa4] /usr/lib64/libpython2.7.so.1.0(+0x9a97e)[0x7f71f729e97e] /usr/lib64/libpython2.7.so.1.0(PyObject_Call+0x46)[0x7f71f7287bd6] /usr/lib64/libpython2.7.so.1.0(+0x8a82e)[0x7f71f728e82e] /usr/lib64/libpython2.7.so.1.0(PyObject_Call+0x46)[0x7f71f7287bd6] /usr/lib64/libpython2.7.so.1.0(+0xd0f55)[0x7f71f72d4f55] /usr/lib64/libpython2.7.so.1.0(+0xccf14)[0x7f71f72d0f14] /usr/lib64/libpython2.7.so.1.0(PyObject_Call+0x46)[0x7f71f7287bd6] /usr/lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x4fcf)[0x7f71f72f521f] /usr/lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x51e4)[0x7f71f72f5434] /usr/lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x51e4)[0x7f71f72f5434] /usr/lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x51e4)[0x7f71f72f5434] /usr/lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x244)[0x7f71f72fafa4] /usr/lib64/libpython2.7.so.1.0(+0x9a76f)[0x7f71f729e76f] /usr/lib64/libpython2.7.so.1.0(PyObject_Call+0x46)[0x7f71f7287bd6] /usr/lib64/libpython2.7.so.1.0(+0x8a82e)[0x7f71f728e82e] /usr/lib64/libpython2.7.so.1.0(PyObject_Call+0x46)[0x7f71f7287bd6] /usr/lib64/libpython2.7.so.1.0(+0xd0f55)[0x7f71f72d4f55] /usr/lib64/libpython2.7.so.1.0(+0xccf14)[0x7f71f72d0f14] /usr/lib64/libpython2.7.so.1.0(PyObject_Call+0x46)[0x7f71f7287bd6] /usr/lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x4fcf)[0x7f71f72f521f] /usr/lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x244)[0x7f71f72fafa4] /usr/lib64/libpython2.7.so.1.0(+0x9a76f)[0x7f71f729e76f] /usr/lib64/libpython2.7.so.1.0(PyObject_Call+0x46)[0x7f71f7287bd6] /usr/lib64/libpython2.7.so.1.0(+0x8a82e)[0x7f71f728e82e] /usr/lib64/libpython2.7.so.1.0(PyObject_Call+0x46)[0x7f71f7287bd6] /usr/lib64/libpython2.7.so.1.0(+0xd0f55)[0x7f71f72d4f55] /usr/lib64/libpython2.7.so.1.0(+0xccf14)[0x7f71f72d0f14] /usr/lib64/libpython2.7.so.1.0(PyObject_Call+0x46)[0x7f71f7287bd6] /usr/lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x4fcf)[0x7f71f72f521f] /usr/lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x244)[0x7f71f72fafa4] /usr/lib64/libpython2.7.so.1.0(PyEval_EvalCode+0x32)[0x7f71f734fc02] /usr/lib64/libpython2.7.so.1.0(+0x151e3b)[0x7f71f7355e3b] /usr/lib64/libpython2.7.so.1.0(PyRun_FileExFlags+0x92)[0x7f71f7271190] /usr/lib64/libpython2.7.so.1.0(PyRun_SimpleFileExFlags+0x304)[0x7f71f7271d5e] /usr/lib64/libpython2.7.so.1.0(Py_Main+0xc4a)[0x7f71f72775d6] /lib64/libc.so.6(__libc_start_main+0xf5)[0x7f71f6c62725] python(_start+0x29)[0x400789] ======= Memory map: ======== 00400000-00401000 r-xp 00000000 00:26 1817429 /usr/bin/python2.7 00600000-00601000 r--p 00000000 00:26 1817429 /usr/bin/python2.7 00601000-00602000 rw-p 00001000 00:26 1817429 /usr/bin/python2.7 02081000-02f1b000 rw-p 00000000 00:00 0 [heap] 7f71dc226000-7f71dc6d4000 rw-p 00000000 00:00 0 7f71dc6d4000-7f71dc6d5000 ---p 00000000 00:00 0 7f71dc6d5000-7f71dced5000 rw-p 00000000 00:00 0 7f71dced5000-7f71dced6000 r--p 00000000 00:26 1891017 /usr/lib64/libicudata.so.52.1 7f71dced6000-7f71dd0d5000 ---p 00001000 00:26 1891017 /usr/lib64/libicudata.so.52.1 7f71dd0d5000-7f71dd0d6000 r--p 00000000 00:26 1891017 /usr/lib64/libicudata.so.52.1 7f71dd0d6000-7f71dd0f8000 r-xp 00000000 00:26 2077022 /usr/lib64/libbluetooth.so.3.18.13 7f71dd0f8000-7f71dd2f7000 ---p 00022000 00:26 2077022 /usr/lib64/libbluetooth.so.3.18.13 7f71dd2f7000-7f71dd2f8000 r--p 00021000 00:26 2077022 /usr/lib64/libbluetooth.so.3.18.13 7f71dd2f8000-7f71dd2fb000 rw-p 00022000 00:26 2077022 /usr/lib64/libbluetooth.so.3.18.13 7f71dd2fb000-7f71dd501000 r-xp 00000000 00:26 1891019 /usr/lib64/libicui18n.so.52.1 7f71dd501000-7f71dd700000 ---p 00206000 00:26 1891019 /usr/lib64/libicui18n.so.52.1 7f71dd700000-7f71dd70c000 r--p 00205000 00:26 1891019 /usr/lib64/libicui18n.so.52.1 7f71dd70c000-7f71dd70e000 rw-p 00211000 00:26 1891019 /usr/lib64/libicui18n.so.52.1 7f71dd70e000-7f71dd70f000 rw-p 00000000 00:00 0 7f71dd70f000-7f71dd879000 r-xp 00000000 00:26 1891031 /usr/lib64/libicuuc.so.52.1 7f71dd879000-7f71dda79000 ---p 0016a000 00:26 1891031 /usr/lib64/libicuuc.so.52.1 7f71dda79000-7f71dda89000 r--p 0016a000 00:26 1891031 /usr/lib64/libicuuc.so.52.1 7f71dda89000-7f71dda8a000 rw-p 0017a000 00:26 1891031 /usr/lib64/libicuuc.so.52.1 7f71dda8a000-7f71dda8e000 rw-p 00000000 00:00 0 7f71dda8e000-7f71ddaab000 r-xp 00000000 00:26 1801092 /usr/lib64/libgps.so.22.0.0 7f71ddaab000-7f71ddcaa000 ---p 0001d000 00:26 1801092 /usr/lib64/libgps.so.22.0.0 7f71ddcaa000-7f71ddcab000 r--p 0001c000 00:26 1801092 /usr/lib64/libgps.so.22.0.0 7f71ddcab000-7f71ddcac000 rw-p 0001d000 00:26 1801092 /usr/lib64/libgps.so.22.0.0 7f71ddcac000-7f71ddcaf000 rw-p 00000000 00:00 0 7f71ddcaf000-7f71ddd18000 r-xp 00000000 00:26 1801134 /usr/lib64/libboost_serialization.so.1.54.0 7f71ddd18000-7f71ddf17000 ---p 00069000 00:26 1801134 /usr/lib64/libboost_serialization.so.1.54.0 7f71ddf17000-7f71ddf1b000 r--p 00068000 00:26 1801134 /usr/lib64/libboost_serialization.so.1.54.0 7f71ddf1b000-7f71ddf1c000 rw-p 0006c000 00:26 1801134 /usr/lib64/libboost_serialization.so.1.54.0 7f71ddf1c000-7f71de025000 r-xp 00000000 00:26 1903097 /usr/lib64/libboost_regex.so.1.54.0 7f71de025000-7f71de225000 ---p 00109000 00:26 1903097 /usr/lib64/libboost_regex.so.1.54.0 7f71de225000-7f71de22a000 r--p 00109000 00:26 1903097 /usr/lib64/libboost_regex.so.1.54.0 7f71de22a000-7f71de22c000 rw-p 0010e000 00:26 1903097 /usr/lib64/libboost_regex.so.1.54.0 7f71de22c000-7f71de22d000 rw-p 00000000 00:00 0 7f71de22d000-7f71de23d000 r-xp 00000000 00:26 1801158 /usr/lib64/libboost_date_time.so.1.54.0 7f71de23d000-7f71de43d000 ---p 00010000 00:26 1801158 /usr/lib64/libboost_date_time.so.1.54.0 7f71de43d000-7f71de43e000 r--p 00010000 00:26 1801158 /usr/lib64/libboost_date_time.so.1.54.0 7f71de43e000-7f71de43f000 rw-p 00011000 00:26 1801158 /usr/lib64/libboost_date_time.so.1.54.0 7f71de43f000-7f71de443000 r-xp 00000000 00:26 2571618 /usr/lib64/libosmodsp.so.0.0.0 7f71de443000-7f71de642000 ---p 00004000 00:26 2571618 /usr/lib64/libosmodsp.so.0.0.0 7f71de642000-7f71de643000 r--p 00003000 00:26 2571618 /usr/lib64/libosmodsp.so.0.0.0 7f71de643000-7f71de644000 rw-p 00004000 00:26 2571618 /usr/lib64/libosmodsp.so.0.0.0 7f71de644000-7f71de64a000 r-xp 00000000 00:26 2428675 /usr/lib64/libairspy.so.1.0.9 7f71de64a000-7f71de84a000 ---p 00006000 00:26 2428675 /usr/lib64/libairspy.so.1.0.9 7f71de84a000-7f71de84b000 r--p 00006000 00:26 2428675 /usr/lib64/libairspy.so.1.0.9 7f71de84b000-7f71de84c000 rw-p 00007000 00:26 2428675 /usr/lib64/libairspy.so.1.0.9 7f71de84c000-7f71de882000 r-xp 00000000 00:26 2078650 /usr/lib64/libbladeRF.so.1 7f71de882000-7f71dea81000 ---p 00036000 00:26 2078650 /usr/lib64/libbladeRF.so.1 7f71dea81000-7f71dea82000 r--p 00035000 00:26 2078650 /usr/lib64/libbladeRF.so.1 7f71dea82000-7f71dea83000 rw-p 00036000 00:26 2078650 /usr/lib64/libbladeRF.so.1 7f71dea83000-7f71dea88000 r-xp 00000000 00:26 2084160 /usr/lib64/libhackrf.so.0.5.0 7f71dea88000-7f71dec88000 ---p 00005000 00:26 2084160 /usr/lib64/libhackrf.so.0.5.0 7f71dec88000-7f71dec89000 r--p 00005000 00:26 2084160 /usr/lib64/libhackrf.so.0.5.0 7f71dec89000-7f71dec8a000 rw-p 00006000 00:26 2084160 /usr/lib64/libhackrf.so.0.5.0 7f71dec8a000-7f71dec91000 r-xp 00000000 00:26 2610773 /usr/lib64/libmirisdr.so.0.0git 7f71dec91000-7f71dee90000 ---p 00007000 00:26 2610773 /usr/lib64/libmirisdr.so.0.0git 7f71dee90000-7f71dee91000 r--p 00006000 00:26 2610773 /usr/lib64/libmirisdr.so.0.0git 7f71dee91000-7f71dee92000 rw-p 00007000 00:26 2610773 /usr/lib64/libmirisdr.so.0.0git 7f71dee92000-7f71df4c1000 r-xp 00000000 00:26 2385921 /usr/lib64/libuhd.so.003.009 7f71df4c1000-7f71df6c1000 ---p 0062f000 00:26 2385921 /usr/lib64/libuhd.so.003.009 7f71df6c1000-7f71df6ea000 r--p 0062f000 00:26 2385921 /usr/lib64/libuhd.so.003.009 7f71df6ea000-7f71df6ec000 rw-p 00658000 00:26 2385921 /usr/lib64/libuhd.so.003.009 7f71df6ec000-7f71df6f0000 rw-p 00000000 00:00 0 7f71df6f0000-7f71df738000 r-xp 00000000 00:26 2625968 /usr/lib64/libgnuradio-uhd-3.7.12.0.so.0.0.0 7f71df738000-7f71df938000 ---p 00048000 00:26 2625968 /usr/lib64/libgnuradio-uhd-3.7.12.0.so.0.0.0 7f71df938000-7f71df93e000 r--p 00048000 00:26 2625968 /usr/lib64/libgnuradio-uhd-3.7.12.0.so.0.0.0 7f71df93e000-7f71df93f000 rw-p 0004e000 00:26 2625968 /usr/lib64/libgnuradio-uhd-3.7.12.0.so.0.0.0 7f71df93f000-7f71df94d000 r-xp 00000000 00:26 2428693 /usr/lib64/librtlsdr.so.0.5git 7f71df94d000-7f71dfb4c000 ---p 0000e000 00:26 2428693 /usr/lib64/librtlsdr.so.0.5git 7f71dfb4c000-7f71dfb4d000 r--p 0000d000 00:26 2428693 /usr/lib64/librtlsdr.so.0.5git 7f71dfb4d000-7f71dfb4e000 rw-p 0000e000 00:26 2428693 /usr/lib64/librtlsdr.so.0.5git 7f71dfb4e000-7f71dfb5c000 r-xp 00000000 00:26 2625987 /usr/lib64/libgnuradio-fcdproplus.so.0.0.0 7f71dfb5c000-7f71dfd5c000 ---p 0000e000 00:26 2625987 /usr/lib64/libgnuradio-fcdproplus.so.0.0.0 7f71dfd5c000-7f71dfd5d000 r--p 0000e000 00:26 2625987 /usr/lib64/libgnuradio-fcdproplus.so.0.0.0 7f71dfd5d000-7f71dfd5e000 rw-p 0000f000 00:26 2625987 /usr/lib64/libgnuradio-fcdproplus.so.0.0.0 7f71dfd5e000-7f71dfd6e000 r-xp 00000000 00:26 2625948 /usr/lib64/libgnuradio-fcd-3.7.12.0.so.0.0.0 7f71dfd6e000-7f71dff6e000 ---p 00010000 00:26 2625948 /usr/lib64/libgnuradio-fcd-3.7.12.0.so.0.0.0 7f71dff6e000-7f71dff6f000 r--p 00010000 00:26 2625948 /usr/lib64/libgnuradio-fcd-3.7.12.0.so.0.0.0 7f71dff6f000-7f71dff71000 rw-p 00011000 00:26 2625948 /usr/lib64/libgnuradio-fcd-3.7.12.0.so.0.0.0 7f71dff71000-7f71dff75000 r-xp 00000000 00:26 2084170 /usr/lib64/libosmosdr.so.0.0.0 7f71dff75000-7f71e0174000 ---p 00004000 00:26 2084170 /usr/lib64/libosmosdr.so.0.0.0 7f71e0174000-7f71e0175000 r--p 00003000 00:26 2084170 /usr/lib64/libosmosdr.so.0.0.0 7f71e0175000-7f71e0176000 rw-p 00004000 00:26 2084170 /usr/lib64/libosmosdr.so.0.0.0 7f71e0176000-7f71e0180000 r-xp 00000000 00:26 2625978 /usr/lib64/libgnuradio-iqbalance.so 7f71e0180000-7f71e0380000 ---p 0000a000 00:26 2625978 /usr/lib64/libgnuradio-iqbalance.so 7f71e0380000-7f71e0381000 r--p 0000a000 00:26 2625978 /usr/lib64/libgnuradio-iqbalance.so 7f71e0381000-7f71e0382000 rw-p 0000b000 00:26 2625978 /usr/lib64/libgnuradio-iqbalance.so 7f71e0382000-7f71e0446000 r-xp 00000000 00:26 2627684 /usr/lib64/libgnuradio-osmosdr-0.1.5git.so.0.0.0 7f71e0446000-7f71e0645000 ---p 000c4000 00:26 2627684 /usr/lib64/libgnuradio-osmosdr-0.1.5git.so.0.0.0 7f71e0645000-7f71e064e000 r--p 000c3000 00:26 2627684 /usr/lib64/libgnuradio-osmosdr-0.1.5git.so.0.0.0 7f71e064e000-7f71e064f000 rw-p 000cc000 00:26 2627684 /usr/lib64/libgnuradio-osmosdr-0.1.5git.so.0.0.0 7f71e064f000-7f71e0700000 r-xp 00000000 00:26 2628892 /usr/lib64/python2.7/site-packages/osmosdr/_osmosdr_swig.so 7f71e0700000-7f71e08ff000 ---p 000b1000 00:26 2628892 /usr/lib64/python2.7/site-packages/osmosdr/_osmosdr_swig.so 7f71e08ff000-7f71e0902000 r--p 000b0000 00:26 2628892 /usr/lib64/python2.7/site-packages/osmosdr/_osmosdr_swig.so 7f71e0902000-7f71e0908000 rw-p 000b3000 00:26 2628892 /usr/lib64/python2.7/site-packages/osmosdr/_osmosdr_swig.so 7f71e0908000-7f71e0989000 rw-p 00000000 00:00 0 7f71e0989000-7f71e09b4000 r-xp 00000000 00:26 2398187 /lib64/libtinfo.so.5.9 7f71e09b4000-7f71e0bb3000 ---p 0002b000 00:26 2398187 /lib64/libtinfo.so.5.9 7f71e0bb3000-7f71e0bb7000 r--p 0002a000 00:26 2398187 /lib64/libtinfo.so.5.9 7f71e0bb7000-7f71e0bbc000 rw-p 0002e000 00:26 2398187 /lib64/libtinfo.so.5.9 7f71e0bbc000-7f71e0bbd000 rw-p 00000000 00:00 0 7f71e0bbd000-7f71e0bf5000 r-xp 00000000 00:26 2398185 /lib64/libncursesw.so.5.9 7f71e0bf5000-7f71e0df4000 ---p 00038000 00:26 2398185 /lib64/libncursesw.so.5.9 7f71e0df4000-7f71e0df5000 r--p 00037000 00:26 2398185 /lib64/libncursesw.so.5.9 7f71e0df5000-7f71e0df6000 rw-p 00038000 00:26 2398185 /lib64/libncursesw.so.5.9 7f71e0df6000-7f71e0e07000 r-xp 00000000 00:26 1840401 /usr/lib64/python2.7/lib-dynload/_curses.so 7f71e0e07000-7f71e1007000 ---p 00011000 00:26 1840401 /usr/lib64/python2.7/lib-dynload/_curses.so 7f71e1007000-7f71e1008000 r--p 00011000 00:26 1840401 /usr/lib64/python2.7/lib-dynload/_curses.so 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7f71e1cba000-7f71e1cbc000 r--p 000b2000 00:3c 2373 /usr/local/lib64/python2.7/site-packages/op25_repeater/_op25_repeater_swig.so 7f71e1cbc000-7f71e1cc4000 rw-p 000b4000 00:3c 2373 /usr/local/lib64/python2.7/site-packages/op25_repeater/_op25_repeater_swig.so 7f71e1cc4000-7f71e1d45000 rw-p 00000000 00:00 0 7f71e1d7a000-7f71e1ed2000 r-xp 00000000 00:26 2385918 /usr/lib64/libvolk.so.1.3 7f71e1ed2000-7f71e20d2000 ---p 00158000 00:26 2385918 /usr/lib64/libvolk.so.1.3 7f71e20d2000-7f71e20d3000 r--p 00158000 00:26 2385918 /usr/lib64/libvolk.so.1.3 7f71e20d3000-7f71e2154000 rw-p 00159000 00:26 2385918 /usr/lib64/libvolk.so.1.3 7f71e2154000-7f71e2155000 rw-p 00000000 00:00 0 7f71e2155000-7f71e219a000 r-xp 00000000 00:26 2386135 /usr/lib64/libgnuradio-pmt-3.7.11.so.0.0.0 7f71e219a000-7f71e2399000 ---p 00045000 00:26 2386135 /usr/lib64/libgnuradio-pmt-3.7.11.so.0.0.0 7f71e2399000-7f71e239d000 r--p 00044000 00:26 2386135 /usr/lib64/libgnuradio-pmt-3.7.11.so.0.0.0 7f71e239d000-7f71e239e000 rw-p 00048000 00:26 2386135 /usr/lib64/libgnuradio-pmt-3.7.11.so.0.0.0 7f71e239e000-7f71e23e4000 r-xp 00000000 00:26 1798159 /lib64/libdbus-1.so.3.8.14 7f71e23e4000-7f71e25e3000 ---p 00046000 00:26 1798159 /lib64/libdbus-1.so.3.8.14 7f71e25e3000-7f71e25e4000 r--p 00045000 00:26 1798159 /lib64/libdbus-1.so.3.8.14 7f71e25e4000-7f71e25e5000 rw-p 00046000 00:26 1798159 /lib64/libdbus-1.so.3.8.14 7f71e25e5000-7f71e2601000 r-xp 00000000 00:26 1797761 /usr/lib64/libnl-3.so.200.18.0 7f71e2601000-7f71e2800000 ---p 0001c000 00:26 1797761 /usr/lib64/libnl-3.so.200.18.0 7f71e2800000-7f71e2802000 r--p 0001b000 00:26 1797761 /usr/lib64/libnl-3.so.200.18.0 7f71e2802000-7f71e2803000 rw-p 0001d000 00:26 1797761 /usr/lib64/libnl-3.so.200.18.0 7f71e2803000-7f71e2808000 r-xp 00000000 00:26 1797765 /usr/lib64/libnl-genl-3.so.200.18.0 7f71e2808000-7f71e2a08000 ---p 00005000 00:26 1797765 /usr/lib64/libnl-genl-3.so.200.18.0 7f71e2a08000-7f71e2a09000 r--p 00005000 00:26 1797765 /usr/lib64/libnl-genl-3.so.200.18.0 7f71e2a09000-7f71e2a0a000 rw-p 00006000 00:26 1797765 /usr/lib64/libnl-genl-3.so.200.18.0 7f71e2a0a000-7f71e2a39000 r-xp 00000000 00:26 2556691 /usr/lib64/libgomp.so.1.0.0 7f71e2a39000-7f71e2c38000 ---p 0002f000 00:26 2556691 /usr/lib64/libgomp.so.1.0.0 7f71e2c38000-7f71e2c39000 r--p 0002e000 00:26 2556691 /usr/lib64/libgomp.so.1.0.0 7f71e2c39000-7f71e2c3a000 rw-p 0002f000 00:26 2556691 /usr/lib64/libgomp.so.1.0.0 7f71e2c3a000-7f71e2e26000 r-xp 00000000 00:26 1868384 /usr/lib64/libfftw3.so.3.5.5 7f71e2e26000-7f71e3025000 ---p 001ec000 00:26 1868384 /usr/lib64/libfftw3.so.3.5.5 7f71e3025000-7f71e3036000 r--p 001eb000 00:26 1868384 /usr/lib64/libfftw3.so.3.5.5 7f71e3036000-7f71e3037000 rw-p 001fc000 00:26 1868384 /usr/lib64/libfftw3.so.3.5.5 7f71e3037000-7f71e30ff000 r-xp 00000000 00:26 2386139 /usr/lib64/libgnuradio-runtime-3.7.11.so.0.0.0 7f71e30ff000-7f71e32fe000 ---p 000c8000 00:26 2386139 /usr/lib64/libgnuradio-runtime-3.7.11.so.0.0.0 7f71e32fe000-7f71e3304000 r--p 000c7000 00:26 2386139 /usr/lib64/libgnuradio-runtime-3.7.11.so.0.0.0 7f71e3304000-7f71e3306000 rw-p 000cd000 00:26 2386139 /usr/lib64/libgnuradio-runtime-3.7.11.so.0.0.0 7f71e3306000-7f71e3307000 rw-p 00000000 00:00 0 7f71e3307000-7f71e334a000 r-xp 00000000 00:26 1799954 /usr/lib64/libpcap.so.1.8.1 7f71e334a000-7f71e3549000 ---p 00043000 00:26 1799954 /usr/lib64/libpcap.so.1.8.1 7f71e3549000-7f71e354b000 r--p 00042000 00:26 1799954 /usr/lib64/libpcap.so.1.8.1Aborted (core dumped) git show --oneline -s 4c7184c (HEAD -> master, origin/master, origin/HEAD) Fixed bug with loss of tgid_map during hunting/tsys_reset This one works fine for rx.py before multirx.py came along: git show --oneline -s 7192172 (HEAD -> master, origin/master, origin/HEAD) Formatting changes for consistency Any ideas to fix this? TIA, Mike

6 years

6
16
0 0

Christmas Announcements 2017

by ikj1234i＠yahoo.com [op25-dev]

ANNOUNCEMENTS =============== 1) New Web site Our new web site is now on the air! I'd like to thank Matt Ames for his efforts and hard work in reworking content to fit the new format. I'd also like to take this opportunity to thank our hosts at Osmocom, Harald and Holger, for kindly offering this free resource and home for the project. web site: http://op25.osmocom.org/ git repo: https://git.osmocom.org/op25 2) Recent additions and updates Several updates have recently been pushed and are in the 'max' branch of the repo. In addition to bug fixes in both transmitter and receiver applications and libraries, there are a couple of new features: * remote terminal: the curses terminal may now run in a separate process or on a separate machine from rx.py, with connectivity via UDP. * dstar transmitter configuration: the dstar specific config options for repeater 1/2, mycall, and urcall are now supported. 3) CPU usage reduction effort Except for the actual speech decoding process which remains unchanged, the channel tuning and demodulation logic has undergone some streamlining. The result should be a significant reduction in CPU usage in rx.py, especially during idle periods. It's possible some of these optimizations may be slightly too radical; it would be good to receive feedback from all users, but especially from those with- * crowded bands with close channel spacing * p25 phase 2/tdma talkgroups * "center frequency" set to zero in the trunking tsv file 4) New multiple rx app Released today (Dec. 25, 2017) is a sneak preview of a new receiver app, multi_rx.py. It should be considered alpha test grade. The highlights: * receives DMR/YSF/P25(P1) (DSTAR almost finished) * an arbitrary number of concurrently active SDR devices * arbitrary numbers of channels/frequencies For more information see the README file in the apps/ directory of the repo. All of these additions have been pushed to the 'max' branch of the repo. If you have a previous installation of OP25 you should change to the 'build' directory of that installation and do sudo make uninstall prior to pulling and building the new version.

6 years, 1 month

7
24
0 0

Streaming audio from OP25/Raspberry Pi

by John Ackermann N8UR jra＠febo.com [op25-dev]

I just got my RPi scanner set up to stream audio to an Icecast server. Graham did all the hard work to figure out how, so he gets all the credit. But I did collect the information together in a blog posting here: http://blog.febo.com/wp/?p=307 I'm also going to update my plug-and-play image file to include this. It may take me a couple of days to get that ready. 73, John

6 years, 1 month

4
9
0 0

OP25 RPi Image

by John Ackermann N8UR jra＠febo.com [op25-dev]

I finally had time to package up my OP25 system onto a ready-to-run image for an RPi3. This is based on the full Raspbian Stretch OS with GUI, so it's a 1.3 GB download. It's at http://febo.com/pages/os_images, along with a couple of other RPi images (one for an NTP time server, another that makes a bunch of RTL-SDR dongles look like a single Hermes HPSDR receiver). After downloading, unzip the file (it'll be a bit over 4GB) and write to an 8GB SD card. Stick the card in your Pi and wait for the desktop to appear. This system has Graham's (github.com/boatbod) latest code and if you happen to live in Montgomery County, Ohio, and have an HDMI monitor with speakers, you are all set to go. :-) Otherwise, you'll need to make appropriate edits to the config files and possibly change the sound settings. Enjoy! 73, John

6 years, 3 months

2
2
0 0

multi_rx

by gnorbury＠bondcar.com [op25-dev]

FWIW i endeavor to keep my fork up to date with the max branch so multi_rx should be available in both versions. I've not personally testing it though, so I cannot offer help or guidance on setup and usage. Graham

6 years, 3 months

3
3
0 0

Recent changes

by gnorbury＠bondcar.com [op25-dev]

For my version of op25 I've just pushed a change to support using hostnames/fully qualified domain names (or straight IP addresses) in the --wireshark-host command line parameter (-W). Earlier changes include the addition of the source radio id (where available) to the terminal screen, as well as indication of when encryption is active (only applies when using --nocrypt command line option).

6 years, 4 months

4
14
0 0

rx.py Quirks

by Brett Friermood brett.friermood＠gmail.com [op25-dev]

Hello all, I've been excited about trying the new rx.py since it was first announced and finally was able to install it last night and was quite impressed. In the last couple weeks I've attempted to run it on my Toughbooks, running Debian, but have not been able to cleanly install the python-gtk2-dev dependency for gnuradio. Last night I dug my SDR/DSP computer back out from recent desk remodeling and fired it up. I purpose built this computer specifically to run OP25 and SDRTrunk on Ubuntu with an i7 processor, and large amounts of RAM, and an SSD. In addition to updating the original OP25 to latest, I also installed the boatbod version and spent most of my time running it. It was very nice to run in CLI only mode which I've wanted to do for a long time. By using the internal audio server and the "t" trunk-tracking command I was able to dial up every site I tried within my coverage area and start following traffic. It has been a while since I've used OP25 so I was midly surprised when I was able to receive a site that other software will not receive. I did notice a couple issues, though. I observed a crash when toggling off a plot. Turning on the plot would work fine, and even trying to turn on another would produce a warning that only one can be active, but everything continued running. However, when I turned off the plot the window would close as expected but then the terminal would freeze. After a couple seconds "0"'s would begin showing as if there was no data from the SDR. The only way I was able to fix it was to kill the python process. After starting again everything would work until turning off a plot. It also wasn't limited to a single plot as it happened with all of them. The second issue I faced was when trying to use a trunk.tsv file with the "T" option. After fixing my .tsv files after the quotes got obliterated it appeared to load and start running, however only showed a single site's information at the top of the terminal and another site's control channel frequency at the bottom. I ran short of time so I wasn't able to determine if it heard voice traffic or not, but it did not appear to be stepping through the different sites' control channels as configured in the .tsv file. Am I incorrect as to how the .tsv file is handled? Brett

6 years, 5 months

3
6
0 0

boatbod's op25 github fork updated

by gnorbury＠bondcar.com [op25-dev]

For anyone interested, I have merged the latest changes to the osmocom max branch into my op25 github fork https://github.com/boatbod/op25 and added the ability to dynamically turn on and off the various plots (fft, constellation, symbol & datascope). These are controlled from the terminal window by pressing the 1, 2, 3 & 4 keys. 1 = fft 2 = constellation 3 = symbol 4 = datascope Presently it is only possible to enable one plot at a time. Once I figure out how to track and untangle the gnuradio inter-block connections, I will see about making them operate simultaneously. Graham

6 years, 6 months

2
2
0 0

No audio

by Tom Hayward tom＠tomh.us [op25-dev]

I have an older system working fine on the master branch and I'm currently trying to set up a new VM running the max branch. The goal is to send audio from two talkgroups to darkice. The problem is that I'm not getting any audio out of rx.py. I know the darkice config works, because I can do this and hear pink noise on the stream: speaker-test -r 8000 -D hw:Loopback,0,0 But starting rx.py with the same audio device like this, I never hear anything: ./rx.py --args rtl=0 -N LNA:42 -f 774081250 -S 1320000 -v 5 -2 -T ss911_tacoma.tsv -O hw:Loopback,0,0 The receiver seems to be working. I can see the name of the talkgroup I'm interested in at the bottom of the screen while it's active, I just don't hear anything on the stream: """ NAC 0x1e1 WACN 0xbee00 SYSID 0x1e7 774.431250/804.431250 tsbks 2390 voice frequency 773.431250 tgid(s) 40306 40107 0.3s ago count 77 voice frequency 774.681250 tgid(s) 59197 40106 0.3s ago count 166 Frequency 774.431250 Talkgroup ID 40106 PCSO East """ Is there something obvious I'm doing wrong here? P.S. Is there a better way to pipe audio to darkice than snd-aloop? Tom

6 years, 6 months

2
6
0 0

A couple of patches [1 Attachment]

by John Ackermann N8UR jra＠febo.com [op25-dev]

Attached is a patch file that updates Max's terminal.py and trunking.py in a few ways: 1. terminal.py reads the window size at startup and adjusts the curses settings accordingly. If you set xterm or equivalent to more rows (I'm using 38), you can handle sites with more than 20 frequencies without crashing. This is the patch I posted a week or so ago. (Max, I think your idea of making the main window two columns is still a good one, and the space that frees up could be used to display other interesting info. I don't think I'll have the time to learn how to implement that, though.) 2. terminal.py now displays an info line at the bottom of the screen showing the keyboard commands that are available. I also added a blank line or two to make the display look (IMHO) a bit cleaner. 3. If you set -v to 5 or higher, every frequency or talkgroup command is output on stderr (this will generate a lot of output on a busy system!). If you want to generate a list of every unique frequency used by the system, this will produce it from the stderr.2 file: grep freq: stderr.2 | cut -d" " -f3 | sort | uniq or to get all the unique talkgroups: greg freq: stderr.2 | cut -d" " -f5 | sort | uniq Max, this was actually a bit less trivial than first thought. The code is easy, but where to put it wasn't. Your suggestion about the end of update_state() led to only one update per second, and lost many freq/talkgroup set commands. I think I found a spot that doesn't miss any. Lots of output, but lets you build a comprehensive tgid list. 4. The stderr output of "set trunk_cc..." was not all that useful, so it's now set to appear only when the -v level is set to 6 or greater. (Behavior of -v 10 includes the above but is otherwise unchanged.) 5. I cleaned up all the logging/status/debug outputs in trunking.py to use "sys.stderr.write()" rather than "print". That will stop them from showing up in the terminal screen. While I was at it, I also added newlines to the end of all output and did some other cleanup. Hope this is useful. 73, John

6 years, 6 months

2
1
0 0

Ubuntu 14.04 Audio Crashing

by 'William Becks' wa8wg＠centurytel.net [op25-dev]

I have been chasing a problem with the audio crashing after 24 hours of continuous operation in Ubuntu 14.04 that appeared to have been caused by pulseaudio. However, that was apparently not the cause as the audio server still crashes after 24 hours even with pulseaudio removed from the system. This is the response that scrolls when performing a speaker-test once the audio server crashes. op25@op25-VirtualBox:~$ sudo speaker-test -t sine -f 500 -c2 [sudo] password for op25: speaker-test 1.0.27.2 Playback device is default Stream parameters are 48000Hz, S16_LE, 2 channels Sine wave rate is 500.0000Hz Rate set to 48000Hz (requested 48000Hz) Buffer size range from 2048 to 16384 Period size range from 1024 to 1024 Using max buffer size 16384 Periods = 4 was set period_size = 1024 was set buffer_size = 16384 0 - Front Left 1 - Front Right Time per period = 0.162188 0 - Front Left 1 - Front Right Time per period = 0.172795 0 - Front Left 1 - Front Right Time per period = 0.171719 0 - Front Left 1 - Front Right Time per period = 0.170190 0 - Front Left 1 - Front Right Time per period = 0.168764 0 - Front Left 1 - Front Right Time per period = 0.176896 0 - Front Left 1 - Front Right Time per period = 0.172278 0 - Front Left 1 - Front Right Time per period = 0.172175 0 - Front Left 1 - Front Right Time per period = 0.171800 0 - Front Left 1 - Front Right Time per period = 0.172193 0 - Front Left 1 - Front Right Time per period = 0.170080 0 - Front Left 1 - Front Right Time per period = 0.173308 0 - Front Left 1 - Front Right Time per period = 0.172197 0 - Front Left 1 - Front Right Time per period = 0.172493 0 - Front Left 1 - Front Right Time per period = 0.172013 0 - Front Left 1 - Front Right Time per period = 0.171716 0 - Front Left 1 - Front Right Time per period = 0.172795 0 - Front Left 1 - Front Right Time per period = 0.176432 0 - Front Left 1 - Front Right Time per period = 0.172236 0 - Front Left 1 - Front Right Time per period = 0.172164 0 - Front Left 1 - Front Right Time per period = 0.172311 0 - Front Left 1 - Front Right Time per period = 0.171918 0 - Front Left 1 - Front Right Time per period = 0.169485 0 - Front Left 1 - Front Right Time per period = 0.169537 0 - Front Left 1 - Front Right Time per period = 0.176434 0 - Front Left 1 - Front Right Time per period = 0.172278 0 - Front Left 1 - Front Right Time per period = 0.168199 0 - Front Left 1 - Front Right ^CWrite error: -4,Interrupted system call (Control-C entered here to interrupt speaker-test.) xrun_recovery failed: -4,Interrupted system call Transfer failed: Interrupted system call op25@op25-VirtualBox:~$ Has anyone seen this behavior while running op25 on Ubuntu? Could there be a cron task that executes every 24 hours causing loss of the audio server?? Thank you, Bill, WA8WG

6 years, 6 months

1
0
0 0

OP25 on Ubuntu 14.04

by 'William Becks' wa8wg＠centurytel.net [op25-dev]

Gents, Has anyone else observed that pulse audio seems to crash consistently after approximately 24 hours of continuous operation of Ubuntu14.04? This happens regardless of the branch of op25 built on the system. I have searched the web for this problem and have tried a number of fixes for the pulse audio crash but none of them have corrected the problem. I have tried uninstalling pulse audio to use the underlying ALSA, but can't seem to maintain reliable audio level settings after a shutdown or a reboot. Any ideas or suggestions would be appreciated. Thank you, Bill, WA8WG

6 years, 6 months

2
7
0 0

Some op25 patches [2 Attachments]

by John Ackermann N8UR jra＠febo.com [op25-dev]

Hi -- Back in July I got Max's then-current branch running on my RPi 3, and then proceeded to make some changes around the edges. In terminal.py I did a couple of things: 1. Made the terminal window size-aware so that you can display more than 20 "voice frequency..." lines without crashing Without this, if a site has more than 20 channels, the program will crash when the 21st shows up. With the patch, just make the console window taller and avoid the problem. 2. Cleaned up the console display a bit, and added a "help" line to display the available commands. I don't think there have been any recent changes that would impact these changes and my diff seems to apply cleanly to the current version. The more interesting set of changes are in trunking.py where I cleaned up the log lines for consistency, moved one set of messages from console to stderr, added some granularity to the -v settings, and added a couple of new log messages that provide additional info. As a result, the stderr.2 output is now (IMHO) more useful, and you can analyze it to learn fun facts. For example, attached if Yahoo allows are screenshots of activity by hour, and a sorted list of the most active talkgroups on the site. I wrote a shell script that reads stderr.2 to generate this data. I see that there's been some recent activity in Graham's new fork. It looks like trunking.py has been updated and I don't know if my changes might conflict. My patch-fu is not the greatest, and I don't want to screw things up, but I'd like to contribute my stuff to the project. Graham, I don't have your direct email address. Can I send you my files (based on the Max branch as of mid-July) and ask you to diff them and add them to your repo if they are OK? I'll also provide the traffic analysis script. Of course, I'm happy to send the files to anyone else who might want them. Thanks, John N8UR jra(a)febo.com PS -- and I am hoping to make a ready-to-go RPi op25 image file available as soon as I get these patches integrated.

6 years, 7 months

2
1
0 0

Raspbian Jessie Stretch Lite

by wa8wg＠centurytel.net [op25-dev]

I attempted to built the MAX branch of OP25 on the August release of Raspbian Jessie Stretch Lite but was unable to compile the code resulting in the following error during make. [ 52%] Building CXX object op25/gr-op25_repeater/lib/imbe_vocoder/CMakeFiles/imbe_vocoder.dir/pitch_est.cc.o /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘32970’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] }; ^ /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘33226’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘33482’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘33482’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘33738’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘33994’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘34250’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘34506’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘34506’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘34762’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘35018’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘35274’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘35530’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘35530’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘35786’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘36042’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘36298’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘36554’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘36554’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘36810’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘37066’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘37322’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘37578’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘37578’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘37834’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘38090’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘38346’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘38602’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘38602’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘38858’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘39114’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘39370’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] /home/pi/op25/op25/gr-op25_repeater/lib/imbe_vocoder/pitch_est.cc:60:1: error: narrowing conversion of ‘39626’ from ‘int’ to ‘Word16 {aka short int}’ inside { } [-Wnarrowing] op25/gr-op25_repeater/lib/imbe_vocoder/CMakeFiles/imbe_vocoder.dir/build.make:326: recipe for target 'op25/gr-op25_repeater/lib/imbe_vocoder/CMakeFiles/imbe_vocoder.dir/pitch_est.cc.o' failed make[2]: *** [op25/gr-op25_repeater/lib/imbe_vocoder/CMakeFiles/imbe_vocoder.dir/pitch_est.cc.o] Error 1 CMakeFiles/Makefile2:737: recipe for target 'op25/gr-op25_repeater/lib/imbe_vocoder/CMakeFiles/imbe_vocoder.dir/all' failed make[1]: *** [op25/gr-op25_repeater/lib/imbe_vocoder/CMakeFiles/imbe_vocoder.dir/all] Error 2 Makefile:127: recipe for target 'all' failed make: *** [all] Error 2 Any ideas on how to patch Raspbian Jessie Stretch Lite to correct the Makefile recipe error? Thank you, Bill, WA8WG

6 years, 7 months

4
9
0 0

OP25 and Wireshark

by James K4JK k4jk.james＠gmail.com [op25-dev]

Hi All, I'm looking for hints as to how to get P25 frames to decode properly using rx.py and wireshark. I'm using the max branch of OP25 on Debian 8. I'm trying to monitor a phase 2 system. I have compiled wireshark 1.8.6, with the OP25 patches and have it running on Ubuntu 14.04 on another machine. I can see P25 frames in wireshark, they show up but I have very strange information in them. Lots of TGIDs set to 0, etc. There are also very few if any LDU1 and LDU2 frames making it into the traces on both Phase 1 and 2. Mostly HDU and link control stuff. I'm watching OP25 switch to a voice channel in the console so I know that there is audio on one of the monitored TGs. Does anyone have any pointers or gotchas for this? I have tried both with and without the -2 and -v switches. I am using -w and -W 224.0.0.1. Should I be using the old branch for this? Is this possible? I have also noticed on Phase I systems that the TGID, ALGID, and MI shows up in the stderr file when debug (-v) is set to 10, I think. But this does not happen on Phase 2. Any way to make this happen on Phase 2? Thanks for any assistance. James

6 years, 7 months

5
6
0 0

Undefined Symbol Error

by James K4JK k4jk.james＠gmail.com [op25-dev]

Hi again all, I'm trying to get the main branch running with some of the changes that Joe incorporated last year. Everything compiles fine (this is a fresh install of Ubuntu 14.04) but when running scope.py I'm getting and undefined symbol error: (most recent call last): File "./scope.py", line 55, in <module> import op25_repeater File "/usr/local/lib/python2.7/dist-packages/op25_repeater/__init__.py", line 45, in <module> from op25_repeater_swig import * File "/usr/local/lib/python2.7/dist-packages/op25_repeater/op25_repeater_swig.py", line 28, in <module> _op25_repeater_swig = swig_import_helper() File "/usr/local/lib/python2.7/dist-packages/op25_repeater/op25_repeater_swig.py", line 24, in swig_import_helper _mod = imp.load_module('_op25_repeater_swig', fp, pathname, description) ImportError: /usr/local/lib/libgnuradio-op25_repeater.so: undefined symbol: _ZN8p25p2_vf12encode_dstarEPhPKi Searching around for this does not turn up anything really. Has anyone seen this before? Thanks, James

6 years, 7 months

4
8
0 0

OP25 for noobs by a noob (long)

by flkmrz＠gmail.com [op25-dev]

Trying to get op25 running was pretty much an exercise in frustration and annoyance. I've been doing computers for quite a few years, but I'm not a linux power user. After quite a bit of trial and error, wading through multiple forum posts, and doing more trial and error, I came up with a (hopefully) complete set of step by step instructions for getting op25 up and running. These instructions assume that you have just done a clean install of ubuntu 14.04 32bit linux. I ran into multiple problems with the 64 bit version. While I'm sure that they could be overcome, it seems the 32 bit version is easier. There are also probably other easier and/or faster ways of doing some of this stuff. Some of the stuff may be redundant. The bottom line is this is what worked for me. Your mileage may vary. Batteries not included. So, without further ado.... Make sure you have a working internet connection. Click on the settings icon on the left. When the system settings window opens, click on "software and updates". The first tab (ubuntu software) should have everything checked. Click on the second tab (other software). The first two options should be unchecked. Check them. You may be asked for your password to authenticate after checking the first one. Give it, then check on the second one. Click close on the lower right. You'll be told that the software needs to be updated. Let it. x out of the system settings window. Open a terminal window by typing <CTRL><ALT>t type in the following sequence of commands, pressing the enter key after each line. Anything in parentheses is a comment. sudo apt-get update sudo apt-get update sudo apt-get install aptitude sudo apt-get install aptitude sudo aptitude update (Yes, some of the commands are issued twice. I found that it makes it work. ) sudo apt-get update sudo apt-get build-dep gnuradio (hum the theme from Final Jeopardy. Make a sandwich. Get some chips to go with the sandwich. Get a cold drink to go with the sandwich and chips. Eat the sandwich and chips, and drink the cold drink. Quietly hum In A Gadda Da Vida. The long version. You're going to be here a while.) sudo apt-get install gnuradio gnuradio-dev gr-osmosdr librtlsdr-dev libuhd-dev libhackrf-dev libitpp-dev libpcap-dev git (go refill the cold drink and get some cookies for dessert. Eat the cookies slowly, and drink your cold drink.) cd ~ sudo git clone git://op25.osmocom.org/op25.git cd op25 sudo mkdir build cd build sudo cmake ../ sudo make sudo make install sudo ldconfig Now, we're going to blacklist the standard rtlsdr driver. To do this, use the following series of commands: cd /etc cd modprobe.d sudo gedit blacklist.conf Go to the end of the file, hit enter to add a blank line (for readability) and type in the following two lines: # this line prevents the standard dvb driver from loading blacklist dvb_usb_rtl28xxu At this point, you should have gnuradio and op25 installed. The next thing to do is to edit the files invoking op25 so you can listen to your system of interest. use the following sequence of commands to create a shell file to invoke op25 on your system of interest: cd ~ sudo gedit op25 Now, type in the following lines. We're going to assume that you want to listen to a P25 Phase II system. #!/bin/bash cd ~/op25/op25/gr-op25_repeater/apps python scope.py --args 'rtl' -g 65 -f 851.200e6 -N 'LNA:49' -2 -V -v 0 -S 1000000 -q 2 -T trunk.tsv cd ~ Save the file, and x out of gedit. An explanation of each of the command line arguments is available in the documentation. For now, we'll point out that the number following -f is the frequency of the control channel of interest, and the number following -q is the correction factor in ppm for the sdr stick that you're using. Next, we have to edit the trunking control files. Do the following series of commands: cd ~/op25/op25/gr-op25_repeater/apps sudo gedit trunk.tsv The default file that comes with the install lists a number of systems. Delete everything after the double quotes around "Center Frequency". Hit enter to get to the beginning of a new line. Type in the following line: "Kokomo"<tab>"851.200"<tab>"0"<tab>"0x734"<tab>"CQPSK"<tab>"trunkk.tsv" where <tab> is the tab key. Do not insert any spaces -- use tab only. By way of explanation, the first is the name of the system. Then comes the frequency of the control channel. You could insert several control channel frequencies separated by commas between the quotes, but I've found that this gives less than optimal performance. The remaining fields are offset, then the system ID (which you can find on RadioReference.com), the modulation type, and a file listing talkgroups. Substitute the appropriate data for your system. There is also a provision for whitelisting and blacklisting particular talkgroups, which I won't cover here. *** Make sure that there is absolutely nothing after the final quotes. Any spaces will make the program crash. *** At this point, save the file, and x out of gedit. Almost there..... Finally, we need to create a listing of talkgroups and names. This is actually optional, but it's much better listening when you can see what talkgroup is active, rather than just a number. While there are several ways of getting a talkgroup listing into a file, I'm only going to cover manually entering talkgroups. Talkgroups are in a tab delimited file, without quotes around the talkgroup numbers and tag names. For the example file, I'm only going to put in a couple of talkgroups -- just enough that the idea is obvious. If you've been following, you should still be in the ~/op25/op25/gr-op25_repeater/apps directory. Perform the following series of commands: sudo gedit trunkk.tsv Then, enter the following lines. Press the <tab> key between the talkgroup number and talkgroup name, and press enter after the talkgroup name. 10008 County All-Talk 10022 EMS Dispatch After you've entered your desired talkgroups, save the file, and x out of gedit. Go back to your home directory by typing: cd ~ To start op25, type the following bash op25 The operation of the program has been documented elsewhere, and it's mostly self-explanatory. A couple of hints: If you're getting choppy audio, turn off the displays for the tabs from spectrum through symbols. A Celeron 530 at 1.73 GHz would barely handle the audio with the displays turned off. If you get a NAC error when trying to start the program, check for trailing spaces in your trunk.tsv file. *Any* spaces at the end will crash the program. Hopefully, this will make it easier for people to get op25 up and running. Enjoy!

6 years, 7 months

13
40
0 0

Building on OSX

by 'O'Connor, Daniel' darius＠dons.net.au [op25-dev]

Hi, I'm trying to build op25 on OSX and while I can get it to build and install it doesn't work. It sends up installing into /opt/local/lib/python2.7/site-packages instead of /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/ If I add /opt/local/lib/python2.7/site-packages to sys.path or copy the files into the 'right' directory I get the following error.. In [2]: sys.path.append('/opt/local/lib/python2.7/site-packages/') In [3]: import op25 --------------------------------------------------------------------------- ImportError Traceback (most recent call last) <ipython-input-3-7d3debe9ed1a> in <module>() ----> 1 import op25 /opt/local/lib/python2.7/site-packages/op25/__init__.py in <module>() 43 44 # import swig generated symbols into the op25 namespace ---> 45 from op25_swig import * 46 47 # import any pure python here /opt/local/lib/python2.7/site-packages/op25/op25_swig.py in <module>() 15 except ImportError: 16 return importlib.import_module('_op25_swig') ---> 17 _op25_swig = swig_import_helper() 18 del swig_import_helper 19 elif _swig_python_version_info >= (2, 6, 0): /opt/local/lib/python2.7/site-packages/op25/op25_swig.py in swig_import_helper() 14 return importlib.import_module(mname) 15 except ImportError: ---> 16 return importlib.import_module('_op25_swig') 17 _op25_swig = swig_import_helper() 18 del swig_import_helper /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.pyc in import_module(name, package) 35 level += 1 36 name = _resolve_name(name[level:], package, level) ---> 37 __import__(name) 38 return sys.modules[name] ImportError: No module named _op25_swig There is a file called /opt/local/lib/python2.7/site-packages/op25/_op25_swig.so so I don't know why it can't find it :( I tried renaming it from .so to .dylib but it still can't find it. I note that some of the GNUradio stuff is installed as a .so so..?! :) I have GNURadio installed using Macports and that seems to work fine. Any help appreciated, thanks. -- Daniel O'Connor "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C

6 years, 8 months

2
5
0 0

libairspy-dev in Unbuntu 14.04?

by wa8wg＠centurytel.net [op25-dev]

Can anyone assist in how to add Airspy (libairspy-dev) to GNU Radio + OP25 on Ubuntu 14.04? I am presently using the RTL-SDR but would like to use my Airspy SDR. I have come across some information that uses PyBombs to install libairspy-dev but can't seem to get PyBombs install properly on Ubuntu 14.04. I would also like to try it on Raspbian Jessie on my Pi3-B but don't believe that the Pi has enough processing power to run the minimum sampling rate of the Airspy. Any help would be appreciated. Bill, WA8WG

6 years, 8 months

1
0
0 0

Intermittent crash [1 Attachment]

by John Ackermann N8UR jra＠febo.com [op25-dev]

Every now and then, shortly after startup I am seeing the error shown in the attached screenshot. It causes the program to exit. It doesn't show up every time, and if it doesn't appear within 30 seconds or so, it won't ever. I have no clue what's causing it; I don't think it's related to my patches (at least, the offending line is well before any of my changes). Maybe something isn't always initialized properly? John

6 years, 9 months

1
0
0 0

Improved logging patch [2 Attachments]

by John Ackermann N8UR jra＠febo.com [op25-dev]

I've much improved the frequency/talkgroup logging in the patch I sent to the list on Monday. That version just dumped out, once per second, the freq and talkgroup list shown in the console main window (one line per freq, with last used tgid. New version: -v 5 prints: [timestamp] new freq: [freq] [timestamp] new tgid: [tgid] [tag if tagfile present] [timestamp] set control freq: [freq] (note: only if cc_trunk changes) This makes it easy to build a list of all the frequencies and talkgroups seen on the system, without creating excess output. -v 6 includes the above and adds a line for every tgid whether new or not: [timestamp] set tgid: [tgid] (note: tag not included) In addition to the above, this allows simple traffic analysis (how often is this tgid used, and when). Also changed: there was a fairly frequent line printed to console about "process_data_unit timeout". I changed that to go to stderr when -v is set to 10 or above, and also added a timestamp. I have no idea what this message means, but it doesn't seem to affect program operation. Attached are both the original patch file from Monday, and the new patch. Apply the original one, then patch2 on top of it. John

6 years, 9 months

1
0
0 0

sockaudio.py startup?

by 'wa8wg' wa8wg＠centurytel.net [op25-dev]

Max. I am having difficulty getting sockaudio.py working. See my error log below. Any idea of what I have wrong? gr-osmosdr 0.1.3 (0.1.3) gnuradio 3.7.5 built-in source types: file osmosdr fcd rtl rtl_tcp uhd miri hackrf bladerf rfspace airspy Using device #0 Realtek RTL2838UHIDIR SN: 00000001 Found Rafael Micro R820T tuner Project 25 IMBE Encoder/Decoder Fixed-Point implementation Developed by Pavel Yazev E-mail: pyazev(a)gmail.com Version 1.0 (c) Copyright 2009 This program comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under certain conditions; see the file ``LICENSE'' for details. OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO[149919077 3.506202]p25p1_fdma::rx_sym() timeout OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO[1499191063.867259]p25p1_f dma::rx_sym() timeout OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO[1499191074. 121989]p25p1_fdma::rx_sym() timeout OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO[1499191092.722864]p25p1_fdma::rx_sym( ) timeout OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOO Thank you, Bill William G. Becks, WA8WG N7027 Shady Lane Circle Porterfield, WI 54159 E-Mail: wa8wg(a)centurytel.net

6 years, 9 months

4
13
0 0

RC4

by gregella53＠gmail.com [op25-dev]

I know that a while back there was a grc flowraph of op25 that handled DES. Any chance of a pybombs recipe for op25 that handles RC4 as implemented in Advanced Digital Privacy?

6 years, 9 months

14
84
0 0

suggestion: logging output

by John Ackermann N8UR jra＠febo.com [op25-dev]

In normal operation, it seems that stderr.2 captures mainly messages retuning to the control channel (which is what helped me catch the issue noted in my other message, so that's not all bad). But I think it would be very useful to have the option to log each channel/talkgroup handoff (I'm not sure of the terminology). In particular, building a list of talkgroups would be handy to identify ones that don't have tags. I don't know the difficulty involved, I think it would be really nice to include something like this: 1434343.003423423 frequency: 853.500 talkgroup: 57234 for each handoff. You could then use command line tools (cut, sort, uniq) to build up channel and talkgroup lists. For extra credit, do this at different debug levels. For example, default would print only tuning errors and other things that need user attention. Then at -v 5 print handoffs, at -v 6 print handoffs plus control channel, and leave -v 10 and above as-is. Or maybe add a new command line option to specify the output file. I'm willing to work on this. If I have time, I'll play around with it this week. I will happily accept hints on how to go about it. 73, John

6 years, 9 months

3
3
0 0

suggestion: handling alternate control channels

by John Ackermann N8UR jra＠febo.com [op25-dev]

My local site switched to an alternate control channel a few weeks ago. To address this, I added the primary and 3 alternate CCs in trunk.tsv. (Then last night they switched back to the primary...) I noticed from tail -f'ing stderr.2 that the program (trunking.py?) cycles through all the listed control channels, in order from trunk.tsv, each time it returns from a voice channel. If the active CC is last on the list, the time spent doing that results in dead time when calls are missed. What if the program reordered the control channel list so the active channel is first? That way the retune would immediately go to the active channel and only if it failed would the other channels be scanned (and then the new active channel would go to the head of the list). 73, John

6 years, 9 months

1
0
0 0

rx.py suggestion: display available commands, and suggestion to add one

by John Ackermann N8UR jra＠febo.com [op25-dev]

I think it would be helpful to display the available commands, e.g. "(H)old, (L)ockout, (S)kip, (Q)uit" on either the top or bottom of the terminal window. Also, would it be feasible to add a pair of commands (maybe up/down arrow) that would allow adjusting the frequency correction while the program is running? Thanks! John

6 years, 9 months

1
0
0 0

Success! (almost...) [1 Attachment]

by John Ackermann N8UR jra＠febo.com [op25-dev]

Fresh install of Rasbian jesse and careful following of Max's instructions got rx.py running for me. However, it crashes after a few minutes. Attached is a screenshot of stderr.2 when the crash occurs. Any ideas? I'm also have trouble when trying to use the "-P" option. I'll try to capture details of that later. (BTW -- I found I had better luck using the -T option than just running the command line. Among other things, my local system has apparently shifted to one of the alternate control frequencies, so listening on the primary didn't get me anywhere. Since trunk.tsv specified the alternates, after a few seconds rx.py was able to find the active channel and sync up to it.) John

6 years, 9 months

2
6
0 0

rx.py progress

by John Ackermann N8UR jra＠febo.com [op25-dev]

So, first: I'm quite convinced there is something broken in building the components using the build-gnuradio script. Something in incompatible between the gnuradio, gr-osmosdr, and rtlsdr repositories (and/or my computer and/or Linux Mint 18.1 and/or the RTL-SDR.com dongle). So this time I did it with Max's install.sh in the latest commit, and after installing the needed packages (build-essentials, swig, python-numeric, and gnuplot-x11) got a successful build, and have the rx.py app running -- I think. The problem is, I can't tell if anything's happening. The main window has a single line at the top showing NAC, WACN, SYUSID, tsbks and a single line at the bottom showing the frequency. The NAC value appears to be read from the trunk.tsv file. Neither has changed since I started the program several minutes ago. The stderr.2 output shows a "set trunk_cc to 853600000" command about every 6 to 7 seconds, but nothing else. The audio pipe is running but I haven't heard a peep. Sunday morning is quiet, but it shouldn't be *this* quiet! I've tried running the plot modes (including the undocumented 'fft') but none of them indicate any organized data -- the constellation is just noise, the fft shows a spectrum but without the control channel (most of the time), and the symbol display is just noise. All the plots throw various errors into the stderr.2 file. I've had this RTL-SDR.com dongle working with the old version of op25, on a difference computer, and I know that I have a very strong control channel signal available. So I don't think there's an RF issue. I also tried using a hackrf on this box and had the same results. In each case, the initialization seems to go fine, with the frequency, gain, and sample rate being set without error. I'm just not sure what to do next... Thanks, John

6 years, 10 months

3
4
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Wireshark for OP25

by flkmrz＠gmail.com [op25-dev]

Hi All, Been trying to get wireshark patched and running for op25, without much success. The latest version for which there seems to be a patch is wireshark-1.8.5, which I did get built and running without the op25 patch or plugin. The problem seems to be with getting the plugin and patch via subversion. Trying to follow the posted instructions (from http://op25.osmocom.org/trac/about/wiki/WireSharkPage http://op25.osmocom.org/trac/about/wiki/WireSharkPage) works until attempting to execute svn checkout http://op25.osmocom.org/svn/trunk/wireshark/plugins/p25 p25 at which point it just hangs for a while, and finally comes back and says that it's unable to connect to a repository at that url. There was what appears to be a mirror listed at http://www.sedition.org.au http://www.sedition.org.au which no longer seems to be operational. I'm probably missing something simple, so I hope someone can point me in the right direction to get this working. Thanks!

6 years, 10 months

1
0
0 0

OP25 on the Raspberry PI

by ikj1234i＠yahoo.com [op25-dev]

Below is a guide to the install process, please supply feedback so that it can be improved... First, the testing has been done on the PI 3 "B" with the default install of Raspbian. You'll need to edit the /etc/apt/sources.list file; the file contains the needed "deb-src" line in it, but it's commented out. To fix, edit the file and remove the '#' so the 'deb-src' appears in column one of the file. Save the file, then proceed with the install as follows, first installing the OP25 prerequisites: sudo apt-get update sudo apt-get build-dep gnuradio sudo apt-get install gnuradio gnuradio-dev gr-osmosdr librtlsdr-dev libuhd-dev libhackrf-dev libitpp-dev libpcap-dev git then install OP25 cd ~ git clone https://git.osmocom.org/op25 https://git.osmocom.org/op25 git checkout max cd op25 mkdir build cd build cmake ../ make sudo make install sudo ldconfig The previous generation OP25 application (scope.py) is being deprecated soon; instead we now use the new rx.py. This app is discussed in the README file that's in the OP25 repo that you checked out: op25/gr_op25_repeater/apps/README Max

6 years, 10 months

2
2
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OP25 Setup Info

by John Ackermann N8UR jra＠febo.com [op25-dev]

While I still remembered the steps it took for me to get OP25 running, I thought I would document them on my "John's Geekblog" blog. I broke it into multiple parts; part 1 is at http://blog.febo.com/wp/?p=158. I would welcome any additions/corrections! I also recorded a few minutes of scanning last night -- it was Friday evening and things were hopping so there are a number of missed messages. That video is at https://www.youtube.com/watch?v=_1jO3yM0MIA You may note that my GUI looks a bit different than yours. I spent some time fiddling around to give more display space for the talkgroup tag. I have no idea what I actually did (WX GUI is incomprehensible to me), but I finally came up with a result that doesn't look too bad. Thanks again for all the help! John

6 years, 10 months

4
6
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OP25 setup once built

by jra＠febo.com [op25-dev]

Hi -- After looking at the archives, I think I may need to use a different software branch, but here's where I stand: 1. Downloaded OP25 from the oscomcom site. 2. Built without any problems on Mint 17.04 with Gnuradio 3.7.11. Computer is an i7 laptop with 8GB RAM. I'm using an RTL-SDR dongle for now; I can try a USRP but wanted to start with the simpler hardware. 3. Cobbled up .tsv files for local P25 system (Ohio MARCS-IP, Montgomery County site, C4FM). This site has 30 channels and the 2.4 msps rate of the dongle can't catch them all, but I am covering the control channel pllus several more channels. 4. Scope.py seems to run fine with all windows looking proper. Selecting some tabs causes timeout errors on the console, but those stop when I switch tabs.. 5. I seem to be tuned to the control channel (853.600) and see a not-terrible constellation. 6. But I don't see any traffic decoding, much less get any audio (I know that the 30 channels at this site are spread over a bandwidth greater than the RTL-SDR dongle can provide; I can bring a USRP to the game but for now would be happy just to decode control data. I'd appreciate any help, particularly on what the scope.py command line should look like. And should I be using a version other than what is on the Osmocom site? Thanks much, John Ackermann N8UR jra(a)febo.com

6 years, 11 months

5
13
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Now that it works, simpler questions...

by John Ackermann N8UR jra＠febo.com [op25-dev]

Per my other note, I'm now hearing all sorts of stuff from the Ohio MARCS-IP system. I have a few much more minor questions now: 1. What's the best way to capture the "traffic" output to a file? I want to build a list of the frequencies and talkgroups actually used. 2. Can the whitelist and blacklist entries in trunk.tsv point to files, or do I need to list each talkgroup separately on the system line in trunk? (I'd like to build a list of the maybe 50 out of 350 local talkgroups that I care to hear.) 3. What's needed to be able to put scope.py in /usr/local/bin to avoid the need to go down into op25/op25/gr-op25_repeater? 4. I'm seeing occasional aU underruns on the console; I assume that's normal. I also see one or two talkgroups with badly chopped up audio that trigger a lot of aU. Is my guess correct that those are encrypted? Thanks for the help; this is going to be fun to play with. John

6 years, 11 months

1
0
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rx.py and tdma audio

by gnorbury＠bondcar.com [op25-dev]

If anyone is experimenting with the latest Max branch and the new rx.py app, you may have noticed that phase 2 tdma audio isn't working yet. I have some quick and dirty code that implements the missing bits if anyone wishes to try it out. The three modified files can be found in my google drive: https://drive.google.com/open?id=0B-...DFrTGx4Vkh3em8 https://drive.google.com/open?id=0B-9lC78gYedOMDFrTGx4Vkh3em8 p25_frame_assembler_impl.cc p25p2_tdma.h p25p2_tdma.cc Drop them into the op25/op25/gr-op25_repeater/lib directory, perform a 'make install' (from the build directory) and then add "-2" into the rx.py command line to enable tdma decode.

6 years, 11 months

2
1
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Success running OP25 with GNURadio 3.7.11 [2 Attachments]

by Alex alex323＠gmail.com [op25-dev]

Hi all, OP25 (specifically scope.py) doesn't seem to work out of the box with the latest version of GNU Radio, seemingly because it relies on deprecated components (WX widgets). Today I was able to massage the code to get it semi-functional with 3.7.11 using my own custom flow graph, which was reverse engineered from the scope.py application. When I tune it to a voice channel of a Phase I system I am able to hear audio, which I consider a success. The changes I made to the code base are located here[0], and attached to this email is my flow graph. I hope that this is helpful to people new to the project. I do have some questions though: 1. How can this flow graph be optimized? I am not a radio expert by any means, and while this flow graph works, I don't know *why* it works. Importantly, the MPSK Receiver block is deprecated and set to be removed in a future release[1], so I'd like to change it to something more idiomatic. 2. What do the veriables "beta", "gain_mu", "alpha", "gain_omega", "if_rate", and "symbol_deviation" mean? How were they chosen? Why do they work? -- Alex [0] https://github.com/centromere/op25 [1] https://github.com/gnuradio/gnuradio/issues/1083

6 years, 11 months

3
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Re: [op25-dev] Success running OP25 with GNURadio 3.7.11

by Sean Kealy superstardodge＠yahoo.com [op25-dev]

Where could I find it again? -------------------------------------------- On Sun, 5/14/17, Alex alex323(a)gmail.com [op25-dev] <op25-dev(a)yahoogroups.com> wrote: Subject: Re: [op25-dev] Success running OP25 with GNURadio 3.7.11 To: "Sean Kealy superstardodge(a)yahoo.com [op25-dev]" <op25-dev(a)yahoogroups.com> Received: Sunday, May 14, 2017, 11:44 AM On Sun, 14 May 2017 16:24:10 +0000 (UTC) "Sean Kealy superstardodge(a)yahoo.com [op25-dev]" <op25-dev(a)yahoogroups.com> wrote: > What should I enter for the p25 frame assembler, I get a flowgraph > error for this block > Are you using my fork of OP25? -- Alex #yiv6816875129 #yiv6816875129 -- #yiv6816875129ygrp-mkp { border:1px solid #d8d8d8;font-family:Arial;margin:10px 0;padding:0 10px;} #yiv6816875129 #yiv6816875129ygrp-mkp hr { border:1px solid #d8d8d8;} #yiv6816875129 #yiv6816875129ygrp-mkp #yiv6816875129hd { color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px 0;} #yiv6816875129 #yiv6816875129ygrp-mkp 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6 years, 11 months

2
1
0 0

Compiling on Ubuntu 12.04, issue with libboost

by Dylan Reinhold dreinhold＠gmail.com [op25-dev]

Trying to get op25 on a new latop that has 12.04 (tried to install 10.04 but network drivers wont load). Installed with the : http://op25.osmocom.org/trac/wiki.png/wiki/InstallInstructionsPage First issue was math header was not found, included it in op25/gr-op25_repeater/lib/gardner_costas_cc_impl.cc The with the new gcc naowing became an error so I disabled it with make CXX_FLAGS="-Wno-narrowing" Which got me to what seems to be libboost cant be linked. [ 65%] Linking CXX shared library libgnuradio-op25_repeater.so /usr/bin/ld: CMakeFiles/gnuradio-op25_repeater.dir/vocoder_impl.cc.o: relocation R_X86_64_PC32 against symbol `_ZN2gr13op25_repeater12vocoder_implC1EbbiPcib' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: final link failed: Bad value collect2: error: ld returned 1 exit status op25/gr-op25_repeater/lib/CMakeFiles/gnuradio-op25_repeater.dir/build.make:593: recipe for target 'op25/gr-op25_repeater/lib/libgnuradio-op25_repeater.so' failed make[2]: *** [op25/gr-op25_repeater/lib/libgnuradio-op25_repeater.so] Error 1 CMakeFiles/Makefile2:644: recipe for target 'op25/gr-op25_repeater/lib/CMakeFiles/gnuradio-op25_repeater.dir/all' failed make[1]: *** [op25/gr-op25_repeater/lib/CMakeFiles/gnuradio-op25_repeater.dir/all] Error 2 Makefile:127: recipe for target 'all' failed make: *** [all] Error 2 Any ideas. Seems like I need to rebuild libboost? Thanks, Dylan

6 years, 11 months

1
0
0 0

Control channel questions

by Alex alex323＠gmail.com [op25-dev]

Hello, Let's say you're scanning the airwaves in the frequency range of a known P25 system and come across a spike in power at one particular band that never shuts off. * You should think that you've located a control channel, correct? * If so, is it safe to say that the upstream and downstream channels are side-by-side (one contiguous frequency band)? * What is the most accurate way of determining whether what you've discovered is a Phase I or Phase II system? * When someone keys up a radio, is the following sequence of events accurate?: 1. The radio sends a packet via the upstream control channel indicating that it wishes to speak. 2. The fixed site sends a packet via the downstream control channel indicating a frequency X on which it wants the speaker to transmit. 3. The fixed site sends a packet via the downstream control channel instructing all radios in the talk group to tune in to a frequency Y. 4. The speaker transmits on frequency X, and the fixed site acts as a repeater, re-broadcasting the audio to frequency Y. -- Alex

6 years, 12 months

4
6
0 0

wireshark UDP output

by russ.innes＠gmail.com [op25-dev]

I seem to be having no luck getting the wireshark output to work monitoring a P25p1 system. I have enabled it ( -w) and verified that scope.py is loading the p25_decoder object in which the wireshark flag and port are passed to.. however if I use nc or a python script to listen on 23456 (or wireshark) I'm not getting a thing.... any thoughts? Cheers

7 years

3
6
0 0

New Install, RTL Dongle only allows spectrum analyzer view

by kd8b＠thebades.net [op25-dev]

I am not sure if I set something wrong or this is a limit of the device. I built a new linux box and installed op25 as suggested on the page of http://op25.osmocom.org/trac/prefs/wiki/InstallInstructionsPage http://op25.osmocom.org/trac/prefs/wiki/InstallInstructionsPage I blacklisted the dvb_usb_rtl28xxu kernel module as it was interfering when I tried to run the scope. When I run the RTL scope command from http://op25.osmocom.org/trac/login/wiki/SignalScopePage http://op25.osmocom.org/trac/login/wiki/SignalScopePage, ./scope.py --args 'rtl' -g 65 -f 123.45e6 -N 'LNA:49' -V -v 0 -S 1000000 -q 39 -T trunk.tsv I change the -f freq to my freq of interest and the scope runs but it appears to be in a locked read only type state. I can view the spectrum analyzer but I can change nothing in that panel. Everything is sort of greyed out. I tried not loading the -T trunked part of the command as I am looking at a conventional channel right now. I tried to see if I could find anything in the internet on this as well as here but not finding anything. If I run the command as a discriminator scanner installation, the scope module is not locked and I can connect other screens like c4fm, constellation etc... Is this a limit of the RTL device or did I overlook something?? I have been trying on and off over last couple years to get OP25 working and my Linux skills have been improving in that time but not sure what this is caused by .. Doug

7 years

3
4
0 0

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