On 12/10/2012 07:41 PM, keenerd wrote:
Most significant is rtl_adsb, a fast and simple ADS-B decoder. It is not the most sensitive decoder (Prog's and rtl-1090 pick up a few more planes) but it works fairly well. Of course it lacks the interactive maps of other software, however the output can be piped into fancier programs or across the network with netcat. To use it, just run "rtl_adsb". It does not need any options and can pick up plenty of signals with only the stock antenna.
Hi Keenerd & all, I'm doing some tests with ADS-B (i'm a newbie in this field so please be gentle) and am being able to receive messages like these:
DF=11 CA=5 ICAO Address=acc3b4 PI=0x94804c Type Code=13 S.Type/Ant.=1 ---------- DF=11 CA=5 ICAO Address=aad3b4 PI=0x024745 Type Code=13 S.Type/Ant.=1 ---------- DF=15 CA=6 ICAO Address=a8d3b4 PI=0xa22339 Type Code=4 S.Type/Ant.=0 ---------- DF=11 CA=5 ICAO Address=a8d3b4 PI=0x3721a3 Type Code=b S.Type/Ant.=0 ---------- DF=11 CA=5 ICAO Address=a8d3b4 PI=0x2d3400 Type Code=b S.Type/Ant.=0 ---------- DF=11 CA=5 ICAO Address=a8d3b4 PI=0xbec907 Type Code=b S.Type/Ant.=0
I've been reading a little about the frame format from here http://www.radartutorial.eu/13.ssr/sr25.en.html (any other better source?). I don't know yet very well what's the meaning of DF=11, 10 or 15 but almost all of the messages have a value of 11.
A couple of doubts:
1) from the output shown above, it seems that for some reason I'm not receiving the complete ADS-B 'data' frames, am I right? where's the altitude, latitude, etc? why that information is not displayed?
2) Is it possible to redirect the output to virtualradarserver? I tried to redirect it as it's suggested above (rtl_adbs -R | nc....), the status is 'Connected' and 'Total messages' was around 150 but 'Aircraft tracked' was 0 and nothing shown in the map. Should it work? do I need to use -R in rtl_adsb? in virtualradarserver the 'Data source' is set to 'basestations', is that right? should I try other software?
Thanks in advance for any help/tips :) LU