https://sourceforge.net/p/linuxsdr/wiki/ADS-B/Recent changes to ADS-BenThu, 20 Feb 2020 01:20:58 -0000https://sourceforge.net/p/linuxsdr/wiki/ADS-B/<div class="markdown_content"><pre>--- v20 +++ v21 @@ -21,4 +21,4 @@ An internet connection is required for the map to display correctly. Use the zoom buttons and grab the map to show your current location. Aircraft that are picked up in dump1090 should now be displayed on the map. - + </pre> </div>pynstromThu, 20 Feb 2020 01:20:58 -0000https://sourceforge.net638cae541b12751cd75c6ef9b1e70d795d6a72e9https://sourceforge.net/p/linuxsdr/wiki/ADS-B/<div class="markdown_content"><pre>--- v19 +++ v20 @@ -1,10 +1,3 @@ -###**LinuxSDR is meant to be an quick and easy way to get your SDR up and running. Below is a quick reference on some ways to get started.** - - -## **GNURadio** -There is a folder of example flow graphs located in /home/ubuntu/Documents/flowGraphs/. -There is a shortcut for this in the dock at the bottom of the screen labeled "SDR EG" - ## **Tracking aircraft with ads-b** Open a terminal and use the following command for rtlsdr: `dump1090-sdrplus --net --net-http-port 8000` @@ -29,31 +22,3 @@ Use the zoom buttons and grab the map to show your current location. Aircraft that are picked up in dump1090 should now be displayed on the map.  - -##**---------------------------------------------------------------------------------------------------** - -## **Decode FLEX pager data with GQRX and multimon-ng** -Open GQRX from the application menu on the Dock. -Select the standard driver for your sdr from device drop down menu, the device string should look like: -`rtl=0` -or -`hackrf=0` -and click OK. - -Find some FLEX transmissions in GQRX using nbfm with no squelch or filter. In my area there are several channels between 929 and 931 MHz. When tuned in, click the UDP button in the bottom right panel to stream the raw data over UDP on port 7355. - -Next open a terminal and execute the following command: -`nc -l -u -p 7355 | sox -t raw -esigned-integer -b 16 -r 48000 - -esigned-integer -b 16 -r 22050 -t raw - | multimon-ng -t raw -a FLEX -f alpha -` - -There's a few things going on here. First we're using netcat to listen for the UDP stream from GQRX on port 7355 and pipe it to sox. Sox resamples the audio from 48kHz to 22.05kHz and passes it on to multimon. Multimon-ng with the -a FLEX decoder enabled will decode the stream and output the data to the terminal screen. - - -Channels can be switched in GQRX and will continue to decode in multimon-ng. - -Alternatively, to decode a single known channel/frequency the command line can be used by itself. -With rtlsdr: -`rtl_fm -f 929.6236M -s 22050 | multimon-ng -t raw -a FLEX -f alpha -` -The sampling bandwith can be adjusted, but sox would then be needed to resample for input into multimon-ng. -`rtl_fm -f 929.6236M -s 12500 | sox -t raw -esigned-integer -b 16 -r 12500 - -esigned-integer -b 16 -r 22050 -t raw - | multimon-ng -t raw -a FLEX -f alpha -` - -##**---------------------------------------------------------------------------------------------------** </pre> </div>pynstromWed, 19 Feb 2020 03:21:53 -0000https://sourceforge.netf710ae44f35d90ee8c69359e003825f168e04355https://sourceforge.net/p/linuxsdr/wiki/Home/<div class="markdown_content"><pre>--- v18 +++ v19 @@ -53,6 +53,7 @@ Alternatively, to decode a single known channel/frequency the command line can be used by itself. With rtlsdr: `rtl_fm -f 929.6236M -s 22050 | multimon-ng -t raw -a FLEX -f alpha -` - +The sampling bandwith can be adjusted, but sox would then be needed to resample for input into multimon-ng. +`rtl_fm -f 929.6236M -s 12500 | sox -t raw -esigned-integer -b 16 -r 12500 - -esigned-integer -b 16 -r 22050 -t raw - | multimon-ng -t raw -a FLEX -f alpha -` ##**---------------------------------------------------------------------------------------------------** </pre> </div>pynstromMon, 17 Feb 2020 05:05:11 -0000https://sourceforge.net18fc772563c0e8b9577511d65ca0e0b109d61275https://sourceforge.net/p/linuxsdr/wiki/Home/<div class="markdown_content"><pre>--- v17 +++ v18 @@ -52,7 +52,7 @@ Alternatively, to decode a single known channel/frequency the command line can be used by itself. With rtlsdr: -`rtl_fm -f 929.612M -s 22050 | multimon-ng -t raw -a FLEX -f alpha -` +`rtl_fm -f 929.6236M -s 22050 | multimon-ng -t raw -a FLEX -f alpha -` ##**---------------------------------------------------------------------------------------------------** </pre> </div>pynstromMon, 17 Feb 2020 04:56:03 -0000https://sourceforge.netb9672f407ed13f2a06fca4203454e500dde80b63https://sourceforge.net/p/linuxsdr/wiki/Home/<div class="markdown_content"><pre>--- v16 +++ v17 @@ -30,7 +30,7 @@ Use the zoom buttons and grab the map to show your current location. Aircraft that are picked up in dump1090 should now be displayed on the map.  - +##**---------------------------------------------------------------------------------------------------** ## **Decode FLEX pager data with GQRX and multimon-ng** Open GQRX from the application menu on the Dock. @@ -45,5 +45,14 @@ Next open a terminal and execute the following command: `nc -l -u -p 7355 | sox -t raw -esigned-integer -b 16 -r 48000 - -esigned-integer -b 16 -r 22050 -t raw - | multimon-ng -t raw -a FLEX -f alpha -` -There's a few things going on here. First we're using netcat to receive the UDP stream from GQRX and pipe it to sox. Sox resamples the audio and passes it on to multimon. Multimon-ng with the -a FLEX decoder enabled will decode the stream and output the data to the terminal screen. +There's a few things going on here. First we're using netcat to listen for the UDP stream from GQRX on port 7355 and pipe it to sox. Sox resamples the audio from 48kHz to 22.05kHz and passes it on to multimon. Multimon-ng with the -a FLEX decoder enabled will decode the stream and output the data to the terminal screen.  + +Channels can be switched in GQRX and will continue to decode in multimon-ng. + +Alternatively, to decode a single known channel/frequency the command line can be used by itself. +With rtlsdr: +`rtl_fm -f 929.612M -s 22050 | multimon-ng -t raw -a FLEX -f alpha -` + + +##**---------------------------------------------------------------------------------------------------** </pre> </div>pynstromMon, 17 Feb 2020 04:53:14 -0000https://sourceforge.netc46a3c176e1fc828d29fd9c204794cd1708fa26fhttps://sourceforge.net/p/linuxsdr/wiki/Home/<div class="markdown_content"><pre>--- v15 +++ v16 @@ -28,7 +28,7 @@ An internet connection is required for the map to display correctly. Use the zoom buttons and grab the map to show your current location. Aircraft that are picked up in dump1090 should now be displayed on the map. - + @@ -46,4 +46,4 @@ `nc -l -u -p 7355 | sox -t raw -esigned-integer -b 16 -r 48000 - -esigned-integer -b 16 -r 22050 -t raw - | multimon-ng -t raw -a FLEX -f alpha -` There's a few things going on here. First we're using netcat to receive the UDP stream from GQRX and pipe it to sox. Sox resamples the audio and passes it on to multimon. Multimon-ng with the -a FLEX decoder enabled will decode the stream and output the data to the terminal screen. - + </pre> </div>pynstromMon, 17 Feb 2020 04:30:06 -0000https://sourceforge.nete95ac98ef83f9d24dc2f61cc8121d7222a48f6fehttps://sourceforge.net/p/linuxsdr/wiki/Home/<div class="markdown_content"><pre>--- v14 +++ v15 @@ -28,6 +28,7 @@ An internet connection is required for the map to display correctly. Use the zoom buttons and grab the map to show your current location. Aircraft that are picked up in dump1090 should now be displayed on the map. + @@ -45,3 +46,4 @@ `nc -l -u -p 7355 | sox -t raw -esigned-integer -b 16 -r 48000 - -esigned-integer -b 16 -r 22050 -t raw - | multimon-ng -t raw -a FLEX -f alpha -` There's a few things going on here. First we're using netcat to receive the UDP stream from GQRX and pipe it to sox. Sox resamples the audio and passes it on to multimon. Multimon-ng with the -a FLEX decoder enabled will decode the stream and output the data to the terminal screen. + </pre> </div>pynstromMon, 17 Feb 2020 04:29:03 -0000https://sourceforge.net15f85323c8c0def99fb01b3b33cbbcc662048c3dhttps://sourceforge.net/p/linuxsdr/wiki/Home/<div class="markdown_content"><pre>--- v13 +++ v14 @@ -39,7 +39,7 @@ `hackrf=0` and click OK. -Find some FLEX transmissions in GQRX using nbfm with no squelch or filter. In my area there are several channel between 929 and 931 MHz. When tuned in, click the UDP button in the bottom right panel to stream the raw data over UDP on port 7355. +Find some FLEX transmissions in GQRX using nbfm with no squelch or filter. In my area there are several channels between 929 and 931 MHz. When tuned in, click the UDP button in the bottom right panel to stream the raw data over UDP on port 7355. Next open a terminal and execute the following command: `nc -l -u -p 7355 | sox -t raw -esigned-integer -b 16 -r 48000 - -esigned-integer -b 16 -r 22050 -t raw - | multimon-ng -t raw -a FLEX -f alpha -` </pre> </div>pynstromMon, 17 Feb 2020 02:26:45 -0000https://sourceforge.netb785a74b107effc9683e318a326c1fed1c2ae6f2https://sourceforge.net/p/linuxsdr/wiki/Home/<div class="markdown_content"><pre>--- v12 +++ v13 @@ -32,7 +32,8 @@ ## **Decode FLEX pager data with GQRX and multimon-ng** -Open GQRX from the application menu on the Dock. Select the standard driver for your sdr from device drop down menu, the device string should look like: +Open GQRX from the application menu on the Dock. +Select the standard driver for your sdr from device drop down menu, the device string should look like: `rtl=0` or `hackrf=0` </pre> </div>pynstromMon, 17 Feb 2020 02:25:58 -0000https://sourceforge.net32c64ad1d9b9d11048ff93949d8f044a285916bdhttps://sourceforge.net/p/linuxsdr/wiki/Home/<div class="markdown_content"><pre>--- v11 +++ v12 @@ -1,4 +1,5 @@ -**LinuxSDR is meant to be an quick and easy way to get your SDR up and running. Below is a quick reference on some ways to get started.** +###**LinuxSDR is meant to be an quick and easy way to get your SDR up and running. Below is a quick reference on some ways to get started.** + ## **GNURadio** There is a folder of example flow graphs located in /home/ubuntu/Documents/flowGraphs/. </pre> </div>pynstromMon, 17 Feb 2020 02:22:59 -0000https://sourceforge.netfd36ecf5bf7095d24a9c8da3756b15640a4188ad