[Hackrf-dev] Adding HackRF support to dump1090

[Ilker Temir]

Here it goes: https://github.com/itemir/dump1090_hackrf

I can get some reception from my window with the standard HackRF antenna.

Ilkers-MacBook-Pro:dump1090_hackrf itemir$ ./dump1090
No supported RTLSDR devices found.
HackRF successfully initialized (AMP Enable: 0, LNA Gain: 40, VGA Gain: 62).
*5dab7437d7920a;
CRC: d7920a (ok)
Single bit error fixed, bit 10
DF 11: All Call Reply.
   Capability  : Level 2+3+4 (DF0,4,5,11,20,21,24,code7 - is on airborne)
   ICAO Address: ab7437

*5fa69b92ccd411;
CRC: ccd411 (ok)
Single bit error fixed, bit 13
DF 11: All Call Reply.
   Capability  : Level 7 ???
   ICAO Address: a69b92

*5dab9091529b68;
CRC: 529b68 (ok)
Single bit error fixed, bit 24
DF 11: All Call Reply.
   Capability  : Level 2+3+4 (DF0,4,5,11,20,21,24,code7 - is on airborne)
   ICAO Address: ab9091

Feedback and contributions welcome.

On 6/27/15 7:27 PM, Tom wrote:
>
> Well done.
>
> Look forward to trying this out.
>
> *From:*HackRF-dev [mailto:hackrf-dev-bounces at greatscottgadgets.com] 
> *On Behalf Of *Ilker Temir
> *Sent:* Sunday, 28 June 2015 11:49 AM
> *To:* Donald Pupecki
> *Cc:* hackrf-dev at greatscottgadgets.com
> *Subject:* Re: [Hackrf-dev] Adding HackRF support to dump1090
>
> Thanks! signed to unsigned conversion was the culprit. I first tested 
> it with cox by converting the file and then tweaked my code to do that 
> within the receive path.
>
> I now have a working port of dump1090 to HackRF. I need to do some 
> cleanup but as soon as done, will post it on GitHub and announce on 
> this forum.
>
> On 6/27/15 1:29 PM, Donald Pupecki wrote:
>
>     I don't believe hackrf_transfer and rtl_sdr output in the same
>     format. They are both 8 bit but the hackrf output is signed
>     whereas the rtl output is unsigned.
>
>     If you get this working a hackrf please post the port on github or
>     somewhere as that would be sweet.
>
>     On Jun 27, 2015 4:00 PM, "Ilker Temir" <ilker at ilkertemir.com
>     <mailto:ilker at ilkertemir.com>> wrote:
>
>         Hello,
>
>         I am trying to add HackRF support to Salvatore Sanfilippo's
>         dump1090 tool (https://github.com/antirez/dump1090) as a
>         learning exercise. The tool was originally designed for RTL
>         SDR devices. However, I can't seem to get this port to work.
>
>         To eliminate potential issues in my code, I simplified the
>         troubleshooting steps. Here are the basic set of
>         troubleshooting steps I am using:
>
>         Per tool's documentation, a data file can be captured with
>         rtl_sdr utility in the following way:
>
>                 rtl_sdr -f 1090000000 -s 2000000 -g 50 output.bin
>
>         Then you can pipe it into dump1090 like this:
>                 dump1090 --ifile output.bin
>
>         I made an assumption that the HackRF equivalent of rtl_sdr
>         command above would be the following:
>
>                 hackrf_transfer -r output.bin -f 1090000000 -s 2000000
>         -p 0 -a 0 -l 40 -g 62
>
>         However, capturing packets with HackRF this way and piping
>         them into dump1090 doesn't do anything. I have tried this
>         sitting next to an airport and capturing packets while planes
>         were landing and taking off. I don't have an RTL SDR dongle so
>         I can't test the rtl_sdr command myself. It didn't make to
>         sense to buy a RTL SDR device after HackRF but if I can't
>         crack this, I am considering to buy one.
>
>         BTW, I also tried different gain settings, and sample rate of
>         8e6 with hackrf_transfer, no difference. That said, I never
>         enabled amp_enable.
>
>         Would anyone know if rtl_sdr and hackrf_transfer capture the
>         packets in the same way and format? Or do I need to do some
>         kind of a conversion or translation in between the two to make
>         them compatible?
>
>         Any help or idea will be appreciated.
>
>         P.S. I am aware of gr-air-modes for HackRF to decode ADS-B
>         signals. My goal is to hack dump1090 and add HackRF support as
>         a learning exercise.
>
>         Thanks,
>
>         Ilker
>
>
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>
>
>
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