dump1090 is NOT producing data on port 10001


#1

Good evening everyone. Having a spot of trouble with PiAware and I need some help sorting it out. I’ve been combing through the logs, checking my settings and restarting services. Whatever I’m doing wrong is beyond my scope. Relevant data to follow.

dump1090 is running.
faup1090 is not running.
piaware is running.
dump1090 is listening for connections on port 30005.
dump1090 is listening for connections on port 10001.
piaware is connected to port 10001.
piaware is connected to FlightAware.
dump1090 is producing data on port 30005.
dump1090 is NOT producing data on port 10001.

02/02/2015 04:25:11 ADS-B data program ‘dump1090’ is listening on port 30005, so far so good
02/02/2015 04:25:11 i see dump1090 serving on port 10001
02/02/2015 04:25:11 connecting to dump1090 on port 10001…
02/02/2015 04:25:11 piaware is connected to dump1090 on port 10001
02/02/2015 04:26:48 seconds since last message or startup (2140) less than threshold for action (3600), waiting…
02/02/2015 04:26:48 dump1090 is listening for connections on FA-style port 10001
02/02/2015 04:27:18 0 msgs recv’d from dump1090 (0 in last 5m); 0 msgs sent to FlightAware
02/02/2015 04:31:48 seconds since last message or startup (2440) less than threshold for action (3600), waiting…
02/02/2015 04:31:48 dump1090 is listening for connections on FA-style port 10001
02/02/2015 04:32:19 0 msgs recv’d from dump1090 (0 in last 5m); 0 msgs sent to FlightAware
02/02/2015 04:36:48 seconds since last message or startup (2740) less than threshold for action (3600), waiting…
02/02/2015 04:36:48 dump1090 is listening for connections on FA-style port 10001
02/02/2015 04:37:19 0 msgs recv’d from dump1090 (0 in last 5m); 0 msgs sent to FlightAware
02/02/2015 04:41:48 seconds since last message or startup (3040) less than threshold for action (3600), waiting…
02/02/2015 04:41:48 dump1090 is listening for connections on FA-style port 10001
02/02/2015 04:42:18 0 msgs recv’d from dump1090 (0 in last 5m); 0 msgs sent to FlightAware
02/02/2015 04:46:48 seconds since last message or startup (3340) less than threshold for action (3600), waiting…
02/02/2015 04:46:49 dump1090 is listening for connections on FA-style port 10001
02/02/2015 04:47:19 0 msgs recv’d from dump1090 (0 in last 5m); 0 msgs sent to FlightAware
02/02/2015 04:51:48 no new messages received in 3640 seconds, it might just be that there haven’t been any aircraft nearby but I’m going to try to restart dump1090, possibly restart faup1090 and definitely reconnect, just in case…

These are the results I’ve observed for every iteration. Still no results on my stats page (flightaware.com/adsb/stats/user/finnsquared)

I’ve got class in the morning so I have to call it quits but I’m gonna leave it running overnight and see what the logs look like in the AM. Thanks for any assistance in advance.


#2

uh?
here it connect on 30005 port…


#3

Do you see any aircraft if you go to the map at pi:8080/ ?

If you get the map shown, but no aircraft, then either there is nothing sending ADS-B in your area, or you probably have a dongle or antenna problem. What’s the antenna you’re using and does it have a good view of the sky?

edit: if you were trying this at 4am local time then it’s quite possible there was simply nothing in the air - I have a good view of London’s busy airspace here and even that drops off to almost nothing between 1am - 4am


#4

The local web ui shows the map, but it shows no traffic in my area (Huntsville, AL).

Antenna is mounted outside my window with a clear view of the sky. lsusb tells me this: Realtek Semiconductor Corp. RTL2838 DVB-T

I guess my question boils down to this: If everything is running correctly and I’m just in an area with very sparse air traffic, will I not see any results until that first squawk is registered by my feeder site?


#5

Right.

But it’s a bit weird that you are seeing absolutely nothing. I mean, I pick up signals just by plugging in the lousy whip antenna that comes with the dongle while still inside.
About the only way I can make dump1090 receive nothing at all is if I entirely unplug the antenna from the dongle.

Doublecheck your antenna connections? What’s the antenna you’re using? Are there any strong transmitters e.g. cell towers nearby?

You can also see everything that dump1090 is receiving by stopping the running copy and running it from the command line: just “dump1090” with no args should do for testing. It will print messages to stdout:



Found 1 device(s):
0: Realtek, RTL2838UHIDIR, SN: 00030056 (currently selected)
Found Rafael Micro R820T tuner
Max available gain is: 49.60
Setting gain to: 49.60
Exact sample rate is: 2000000.052982 Hz
Gain reported by device: 49.60
*5e4049e36a5d25;
CRC: 000000 (ok)
SNR: 19.4 dB
Time: 1439548.50us (phase: 0)
DF 11: All Call Reply.
  Capability  : 6 (Level 2+3+4 (DF0,4,5,11,20,21,24,code7))
  ICAO Address: 4049e3
  IID         : II-00

*5e4049e36a5d6d;
CRC: 000048 (ok)
SNR: 11.4 dB
Time: 1578577.50us (phase: 0)
DF 11: All Call Reply.
  Capability  : 6 (Level 2+3+4 (DF0,4,5,11,20,21,24,code7))
  ICAO Address: 4049e3
  IID         : SI-56
...



#6

I’m just using the whip that came with the dongle. No strong sources of interference that I can think of. The only wireless transmitter in my immediate vicinity is my wireless network. But that’s on 2.4GHz and is inside. I wouldn’t expect it to be interfering with 1.09GHz.

The output from dump1090:


Found 1 device(s):
0: Realtek, RTL2838UHIDIR, SN:  (currently selected)
Found Fitipower FC0013 tuner
Max available gain is: 19.70
Setting gain to: 19.70
Exact sample rate is: 2000000.052982 Hz
Gain reported by device: 19.70
*5dae543e2cd723;
CRC: 000000 (ok)
DF 11: All Call Reply.
  Capability  : 5 (Level 2+3+4 (DF0,4,5,11,20,21,24,code7 - is airborne))
  ICAO Address: ae543e
  IID         : II-00

My gain is much lower than yours but is that entry an ADS-B squawk? Or just part of the standard output?


#7

Oh ho, it’s a FC0013, that could be the problem.

Mostly people are using dongles with R820T tuners. A bit of digging on google says that the FC0013 tops out around 1100MHz, so it could well be marginal for receiving ADS-B on 1090MHz, especially with just the default antenna.

*5dae543e2cd723;
CRC: 000000 (ok)
DF 11: All Call Reply.
Capability : 5 (Level 2+3+4 (DF0,4,5,11,20,21,24,code7 - is airborne))
ICAO Address: ae543e
IID : II-00

My gain is much lower than yours but is that entry an ADS-B squawk? Or just part of the standard output?

That is indeed a message - a ModeS response to SSR, not an ADS-B squitter. No position or altitude information, just an identity reply, so probably that won’t result in anything going to FlightAware.


#8

Bummer! That does explain the results I’ve seen though. I’ll try to find another dongle to dedicate to PiAware and use this one for a gnuradio server or something.

Thanks for the help!


#9

uhm?
the whip that came with the dvb-t ?
that wont work on 1090mhz.


#10

Yes it will… Just not very well. :wink:


#11

:question: