op25.osmocom.org
ReengineeringPage – OP25
http://op25.osmocom.org/trac/wiki.png/wiki/ReengineeringPage
Last modified on 04/05/13 03:47:13. Since we first started on OP25 there has been a long hiatus during which GNURadio has evolved and this has caused a lot of problems. This page is the top-level for the re-engineering effort. Re-engineering and Refactoring goals. There are a number of top-level goals for this exercise. Most obviously we want the code to work on GNURadio 3.6 but there are many subtasks:. Implement Ettus' UHD USRP driver. Move to cmake for the build. We'll make the work-in-progress availa...
op25.osmocom.org
WireSharkPage – OP25
http://op25.osmocom.org/trac/wiki.png/wiki/WireSharkPage
Last modified on 01/31/13 23:24:06. The WireShark packet sniffer normally doesn't support APCO P25. If you want to sniff P25 traffic using WireShark then you'll need to patch the sources and rebuild it. You first need to obtain the source code for WireShark. The stable release of WireShark is available from the. Downloads section of the! On that page you should be go to the "Get WireShark" for the stable release (1.8.5 at the time of writing). Click on "Source Code" to download the file. Of course, it is...
op25.osmocom.org
OP25
http://op25.osmocom.org/trac/wiki.png/wiki
Last modified on 05/18/16 06:23:57. World's Cheapest P25 Receiver. Balint has done some excellent work to get the $20USD Realtek RTL2832 DVB-T stick working with GNURadio. Take a look at. To see him use the Realtek receiver together with OP25 to get the cheapest APCO P25 receiver (with DES-OFB support) you're ever likely to find. You should also check out the. Page for more info. Check out the new presentations page. We have added a new presentation page. Hardware scanners such as the Uniden BCD996T offe...
op25.osmocom.org
OP25
http://op25.osmocom.org/trac/wiki.png/wiki/WikiStart
Last modified on 05/18/16 06:23:57. World's Cheapest P25 Receiver. Balint has done some excellent work to get the $20USD Realtek RTL2832 DVB-T stick working with GNURadio. Take a look at. To see him use the Realtek receiver together with OP25 to get the cheapest APCO P25 receiver (with DES-OFB support) you're ever likely to find. You should also check out the. Page for more info. Check out the new presentations page. We have added a new presentation page. Hardware scanners such as the Uniden BCD996T offe...
op25.osmocom.org
SoftwarePage – OP25
http://op25.osmocom.org/trac/wiki.png/wiki/SoftwarePage
Last modified on 01/05/09 03:28:34. The demodulator and decoder program described below makes use of the. The most basic part of the software is the P25 receiver program. This takes a signal source as its input and produces audio and a stream of messages as its output. The message streams can be captured to file or forwarded either to the TAP device or to a file for later processing. Instructions for getting and building the source code are available here. A modified version of the.
op25.osmocom.org
BuildInstructionsPage – OP25
http://op25.osmocom.org/trac/wiki.png/wiki/BuildInstructionsPage
Last modified on 01/23/14 03:20:21. In late 2013/early 2014 OP25 was migrated from svn to git. At the same time two other major changes were made (GNU Radio 3.7 API, which is not backward compatible; and automake was removed and replaced with cmake). This page contains instructions for building the old SVN and GR3.6 version of OP25. See the new install page. Getting and Building OP25. This page describes how you can get the latest version of OP25 and build it for your computer. G - The GNU C compiler,.
op25.osmocom.org
Timeline – OP25
http://op25.osmocom.org/trac/wiki.png/timeline
Larr; Previous Period. Next Period →. Tickets opened and closed. Experimental additions for explicit format voice grant. For information about the timeline view. Download in other formats:. Powered by Trac 0.12.5.
op25.osmocom.org
EncapsulationPage – OP25
http://op25.osmocom.org/trac/wiki.png/wiki/EncapsulationPage
Last modified on 05/14/11 12:43:03. The P25-in-UDP encapsulation is known as P25CAI. THIS allows frames conforming to the P25 common air interface (CAI) to be passed inside UDP datagrams. This allows for BOTH unicast and multicast distribution of P25 CAI message traffic across IP networks. Sending P25 CAI traffic across an IP network may be used to link repeaters via the Internet and allow for traffic analysis and logging services to be implemented using conventional computing equipment. The header conta...
op25.osmocom.org
RepeaterPage – OP25
http://op25.osmocom.org/trac/wiki.png/wiki/RepeaterPage
Last modified on 02/28/13 19:22:50. Uses USRP and/or conventional receiver/transmitter hardware. Generic interface to Asterisk via app rpt (full VOIP, radio control, and standard repeater functions). Features: P25, analog NBFM with CTCSS. Expected to be fully "ROIP" [Radio Over IP] compatible. Multi-channel reception using the USRP. Fig 1 - Spectrum of repeater input band (sample; diagram not to scale). Center freq = 435.500e6. Before running the receiver app, we. We're now ready to start the receiver:.
op25.osmocom.org
InstallInstructionsPage – OP25
http://op25.osmocom.org/trac/wiki.png/wiki/InstallInstructionsPage
Last modified on 01/23/14 03:43:14. The current version of OP25 is installed via pybombs. To install OP25 using pybombs, run these commands. Git clone git:/ github.com/pybombs/pybombs cd pybombs ./pybombs install gr-op25. It should be OK to take all the defaults when asked for pybombs options. The installation process may take a long time. It isn't necessary to install GNURadio as a separate step, since GNURadio is automatically installed by pybombs as are other gr-op25 prerequisites.
