Dump1090 is a simple Mode S decoder for RTLSDR devices
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Latest commit 0ec2dd8 Sep 11, 2018
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compat fixed a tiny change to an #ifndef comment Mar 31, 2016
debian Revise init script to follow Debian interpretation of LBS standards -… Feb 9, 2017
public_html Remove wac, add helicopter instead. WAC no longer supported by chartb… Oct 19, 2017
tools Add a port-30003 regression diff script. Oct 2, 2016
.gitattributes Compress vrs.csv since it's basically readonly. Sep 10, 2016
.gitignore Rebuild a basic faup1090 using the reworked network services bits. Jun 26, 2015
.travis.yml Add fakeroot to travis build (not sure why this broke) Jan 10, 2018
COPYING GPL. Jan 20, 2015
LICENSE GPL. Jan 20, 2015
Makefile Try to make clang happy. Mar 10, 2018
README-dump1090.md GPL. Jan 20, 2015
README-json.md More CPR stats. Feb 19, 2015
README.md Old code warning. Sep 11, 2018
anet.c IPv6 support (in theory). Feb 16, 2016
anet.h IPv6 support (in theory). Feb 16, 2016
convert.c Always measure noise power, silently ignore --measure-noise if given. May 31, 2016
convert.h Always measure noise power, silently ignore --measure-noise if given. May 31, 2016
cpr.c Fix decoding of even lat=0 + odd lat=0 which can have 3 results (-90,… Aug 17, 2015
cpr.h Import CPR changes from experimental branch. Jan 20, 2015
cprtests.c Fix some format strings that pass an unsigned int but use %d Apr 5, 2016
crc.c Add some testing code that looks for ambiguous syndromes that Jan 23, 2015
crc.h CRC reimplementation to be byte-at-a-time table-driven. Jan 20, 2015
demod_2400.c WIP big rewrite of message decoding / aircraft tracking. Aug 27, 2016
demod_2400.h Experimental 2.4MHz Mode A/C demodulator. Mar 20, 2016
dump1090.c Force --net-verbatim if aggressive mode is enabled. May 9, 2018
dump1090.h usage text and defaults not in sync Feb 8, 2017
faup1090.c Don't touch the GPS setting (I had it backwards anyway). Jul 13, 2016
icao_filter.c Don't hang if the ICAO hashtable fills up. May 30, 2015
icao_filter.h icao_filter.[ch] from the experimental branch. Jan 20, 2015
interactive.c Adjust precision of feet -> meters conversion Oct 22, 2016
mode_ac.c WIP big rewrite of message decoding / aircraft tracking. Aug 27, 2016
mode_s.c Track CPR encoding type directly rather than inferring it from airgro… Oct 1, 2016
net_io.c Fix a stray extra comma in port 30003 output if only GNSS altitude wa… Oct 1, 2016
net_io.h Support multiple listening ports per listener type. Jan 24, 2016
stats.c Disable the internal webserver at build time. Jul 10, 2016
stats.h Disable the internal webserver at build time. Jul 10, 2016
track.c Track CPR encoding type directly rather than inferring it from airgro… Oct 1, 2016
track.h Track CPR encoding type directly rather than inferring it from airgro… Oct 1, 2016
util.c uint64_t (even at 12MHz) isn't going to overflow any time soon, don't… Feb 8, 2015
util.h uint64_t (even at 12MHz) isn't going to overflow any time soon, don't… Feb 8, 2015
view1090.c Add --max-range to view1090, use the same defaults as dump1090. Aug 26, 2016



This fork sees very little maintenance and is really only here for historical reasons.

I'd strongly recommend using dump1090-fa (https://github.com/flightaware/dump1090) instead as that is where current development is happening.

I can't provide support for this fork.

Historical readme follows..

dump1090-mutability Debian/Raspbian packages

Build Status

This is a fork of MalcolmRobb's version of dump1090 that adds new functionality and is designed to be built as a Debian/Raspbian package.

This version is licensed under the GPL (v2 or later). See the file COPYING for details.


  • 2.4MHz "oversampling" support
  • doesn't run as root
  • supports FlightAware-TSV-format connections directly (same as the FlightAware version - no faup1090 needed)
  • can start from init.d, with detailed config via debconf or /etc/default/dump1090-mutability
  • can serve the virtual radar map via an external webserver (lighttpd integration included by default)
  • map view uses receiver lat/long given to dump1090 automatically
  • somewhat cleaned-up network code
  • tries to do things "the debian way" when it comes to config, package structure, etc
  • probably a bunch of other things I've forgotten..

A note on maps

Previously, the dump1090 webmap used Google's map API. As of July 2016, Google's policy on keyless use of their API has changed and it's no longer practical to use that API. To avoid having a completely nonfunctional map on new installs that have not been grandfathered, dump1090 now uses the OpenLayers map API.

This means:

  • The default view now uses OpenStreetMap tiles;
  • Google's maps are not available even with an API key (Google does not allow use of their imagery via third-party APIs such as OpenLayers);
  • There are a couple of new layers - Bing and Mapzen - that can be enabled by providing an API key in config.js. See the comments in config.js for details.

Manual installation

To install from packages directly:

You will need a librtlsdr0 package for Raspbian. There is no standard build of this. I have built suitable packages that are available from this release page

Then you will need the dump1090-mutability package itself from this release page

Install the packages with dpkg.


By default it'll only ask you whether to start automatically and assume sensible defaults for everything else. Notable defaults that are perhaps not what you'd first expect:

  • All network ports are bound to the localhost interface only. If you need remote access to the ADS-B data ports, you will want to change this to bind to the wildcard address.
  • The internal HTTP server is disabled. I recommend using an external webserver (see below). You can reconfigure to enable the internal one if you don't want to use an external one.

To reconfigure, either use dpkg-reconfigure dump1090-mutability or edit /etc/default/dump1090-mutability. Both should be self-explanatory.

External webserver configuration

This is the recommended configuration; a dedicated webserver is almost always going to be better and more secure than the collection of hacks that is the dump1090 webserver. It works by having dump1090 write json files to a path under /run once a second (this is on tmpfs and will not write to the sdcard). Then an external webserver is used to serve both the static html/javascript files making up the map view, and the json files that provide the dynamic data.

The package includes a config file for lighttpd (which is what I happen to use on my system). To use this:

# apt-get install lighttpd         # if you don't have it already
# lighty-enable-mod dump1090
# service lighttpd force-reload

This uses a configuration file installed by the package at /etc/lighttpd/conf-available/89-dump1090.conf. It makes the map view available at http:///dump1090/

This should also work fine with other webservers, you will need to write a similar config to the lighttpd one (it's basically just a couple of aliases). If you do set up a config for something else, please send me a copy so I can integrate it into the package!


The default configuration logs to /var/log/dump1090-mutability.log (this can be reconfigured). The only real logging other than any startup problems is hourly stats. There is a logrotate configuration installed by the package at /etc/logrotate.d/dump1090-mutability that will rotate that logfile weekly.

Bug reports, feedback etc

Please use the github issues page to report any problems. Or you can email me.

Future plans

Packages following the same model for MalcolmRobb & FlightAware's forks of dump1090 are in the pipeline. So is a repackaged version of piaware.

Building from source

While there is a Makefile that you can use, the preferred way to build is via the Debian package building system:

$ sudo apt-get install librtlsdr-dev libusb-1.0-0-dev pkg-config debhelper
$ dpkg-buildpackage -b

Or you can use debuild/pdebuild. I find building via qemubuilder quite effective for building images for Raspbian (it's actually faster to build on an emulated ARM running on my PC than to build directly on real hardware).

Here's the pbuilder config I use to build the Raspbian packages:

OTHERMIRROR="deb http://repo.mutability.co.uk/raspbian wheezy rpi"
DEBOOTSTRAPOPTS="--variant=buildd --keyring=/usr/share/keyrings/raspbian-archive-keyring.gpg"
COMPONENTS="main contrib non-free rpi"
EXTRAPACKAGES="eatmydata debhelper fakeroot"

Note about Bias-t support: Bias-t support is available for RTL-SDR.com V3 dongles. If you wish to enable bias-t support, you must insure that you are building this package with a version of librtlsdr that supports this capability. You can find suitable source packages here and here. To enable the necessary support code when building, be sure to include preprocessor define macro HAVE_RTL_BIAST.