How can I tell if I've got the right dump1090 for MLAT?


#1

Morning all,

Got the e-mail about PiAware being able to do MLAT, so rushed to upgrade. :wink: Not sure I’ve got dump1090 upgraded correctly, as I’m seeing nothing in blue.

Upgraded PiAware first successfully:

07/18/2015 14:35:04 ****************************************************
07/18/2015 14:35:04 piaware version 2.1-2 is running, process ID 2104
07/18/2015 14:35:04 your system info is: Linux piaware 3.18.11+ #781 PREEMPT Tue Apr 21 18:02:18 BST 2015 armv6l GNU/Linux
07/18/2015 14:35:04 connecting to FlightAware piaware.flightaware.com/1200
07/18/2015 14:35:05 FlightAware server SSL certificate validated
07/18/2015 14:35:05 encrypted session established with FlightAware
07/18/2015 14:35:05 autoUpdate in adept config is enabled, allowing update
07/18/2015 14:35:05 manualUpdate in adept config is enabled, allowing update
07/18/2015 14:35:05 multilateration support enabled (use piaware-config to disable)
07/18/2015 14:35:05 ADS-B data program ‘dump1090’ is listening on port 30005, so far so good
07/18/2015 14:35:05 Starting faup1090: /usr/bin/faup1090 --net-bo-ipaddr localhost --net-bo-port 30005
07/18/2015 14:35:05 Started faup1090 (pid 2181) to connect to dump1090
07/18/2015 14:35:06 logged in to FlightAware as user kd5byb
07/18/2015 14:35:06 piaware received a message from dump1090!
07/18/2015 14:35:35 2 msgs recv’d from dump1090; 2 msgs sent to FlightAware
07/18/2015 14:35:47 piaware has successfully sent several msgs to FlightAware!
07/18/2015 14:36:32 server is sending alive messages; we will expect them
07/18/2015 14:40:35 139 msgs recv’d from dump1090 (137 in last 5m); 139 msgs sent to FlightAware

Used the following:


wget http://flightaware.com/adsb/piaware/files/dump1090_1.2-2_armhf.deb
sudo dpkg -i dump1090_1.2-2_armhf.deb
sudo reboot

After reboot was complete, did the following:


pi@piaware ~/dump1090 $ ./dump1090 --help

Output was:

| dump1090 ModeS Receiver Ver : 1.09.0608.14 |

Is this the right dump1090 to get MLAT? I’m seeing no MLAT info, and I know I’ve got a ton of other PiAwares nearby:

(viewing) kd5byb ★ KMDQ PlanePlotter 19-Feb-2014 Live 1,260 48,249
0 kd5byb ★ KMDQ PiAware 21-Aug-2014 Live 586 9,911
5 Michael Jones KHSV PiAware 15-Apr-2015 Live 236 3,910
7 Phillip Slawinski KHUA PiAware 05-Sep-2014 15-Jul-2015 1,198 55,496
8 hsvalert ★ KHUA PiAware 04-Dec-2014 Live 453 7,620
9 Ryan Patton KHUA PiAware 06-May-2015 17-Jul-2015 141 2,184
12 geoffb KHSV PiAware 29-Mar-2015 Live 423 7,715
13 jasgrider KHUA PiAware 16-Nov-2014 Live 132 1,858
15 cbane KHSV PiAware 17-Apr-2015 Live 387 8,206
17 gamr KHUA PiAware 07-Jun-2015 Live 927 32,246
18 johncolgan KDCU PiAware 24-Jan-2015 Live 923 33,724
21 brian mullins KHUA PiAware 18-Apr-2015 Live 142 2,209
59 Timothy Finnegan KHUA PiAware 08-Feb-2015 Live 363 6,773
72 mstaggs KJWN PiAware 31-Dec-2014 Live 615 15,471
74 aknorris KBNA PiAware 27-Oct-2014 Live 630 15,079
75 Dave Damron KBNA PiAware 22-Mar-2015 Live 370 6,989
75 Dave Damron KBNA PiAware 26-Mar-2015 Live 158 1,357
77 mattbna KMQY PiAware 22-Mar-2015 Live 1,467 58,519
81 wadepat KMQY PiAware 28-May-2015 Live 712 18,913
81 Unclaimed KCHA FlightFeeder for Android 01-Jul-2015 01-Jul-2015
82 DGower KBNA PiAware 13-Feb-2015 Live 704 19,346
84 bnaagk KJWN PiAware 14-Sep-2014 Live 697 15,658
84 Phillip Slawinski KANB PiAware 09-Jun-2015 10-Jul-2015
86 discofun KCHA PiAware 17-Oct-2014 Live 388 8,523

thanks much!
-ben


#2

dump1090_1.2-2_armhf.deb is the latest release, which you have.

Now just wait until you start seeing this in piaware.out:


[2015-07-18 10:23 MDT] mlat(4566): Receiver connection: ready
[2015-07-18 10:23 MDT] mlat(4566): Server connection: ready
[2015-07-18 10:23 MDT] mlat(4566): Receiver: 56.7 msg/s received 1.1kB/s from receiver
[2015-07-18 10:23 MDT] mlat(4566): Server: 0.0 kB/s from server 0.0kB/s TCP to server 0.4kB/s UDP to server
[2015-07-18 10:23 MDT] mlat(4566): Results: 1.7 positions/minute
[2015-07-18 10:23 MDT] mlat(4566): Aircraft: 33 known, 18 requested by server

Check your stats page for nearby receivers, if you don’t have at least 3 besides yourself, then you probably won’t see any MLAT positions.


#3

Hey gang,

Problem fixed. This is a pretty old PiAware setup…turns out I had a file in /etc/init.d that was starting up the old dump 1090, which prevented PiAware from loading the new one. All is well, seeing lots of MLATS now on my local display.

thanks,
ben