Thanks Chris. I renamed it to dump1090_sdrplus from dump1090_hackrf to reflect additional SDR device support.

https://github.com/itemir/dump1090_sdrplus

On 7/1/15 10:13 AM, Chris Kuethe wrote:
I've just merged airspy support into dump1090_hackrf. This weekend I'll try rip out device-specific airspy/hackrf support in favor of libosmosdr to allow compatibility with even more devices

On Sun, Jun 28, 2015 at 6:12 PM, Chris Kuethe <[email protected] <mailto:[email protected]>> wrote:

    Great.  The amp is not enabled by default, so that you don't cook
    your receiver in case you have some strong local sources.

    Expect a bit more code churn later tonight; I've almost got airspy
    support working too.

    On Sun, Jun 28, 2015 at 6:07 PM, Tom <[email protected]
    <mailto:[email protected]>> wrote:

        Thanks,

        Its running quite well so far, got 6 planes with these
        settings and 10 with the lna on.

        On 29 Jun 2015 10:58 am, Chris Kuethe <[email protected]
        <mailto:[email protected]>> wrote:

            I've adjusted the default gain to 32/48 from 40/62.

            On Sun, Jun 28, 2015 at 5:02 PM, Ilker Temir
            <[email protected] <mailto:[email protected]>> wrote:

                Sure, I am glad it's been useful.

                Default gains are the maximums but they can be
                adjusted from the CLI with --vga-gain and --lna-gain
                options.

                On Jun 28, 2015, at 4:44 PM, Tom <[email protected]
                <mailto:[email protected]>> wrote:

                    Thanks for making this, I think the default vga
                    gain of 60 is quite much, I had better luck with
                    around 28.

                    Have only been running it for a few min so I cant
                    compare yet.

                    *From:*HackRF-dev
                    [mailto:[email protected]]
                    *On Behalf Of *Ilker Temir
                    *Sent:* Monday, 29 June 2015 3:16 AM
                    *To:* [email protected]
                    <mailto:[email protected]>
                    *Subject:* Re: [Hackrf-dev] Adding HackRF support
                    to dump1090

                    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:[email protected]]
                        *On Behalf Of *Ilker Temir
                        *Sent:* Sunday, 28 June 2015 11:49 AM
                        *To:* Donald Pupecki
                        *Cc:* [email protected]
                        <mailto:[email protected]>
                        *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"
                            <[email protected]
                            <mailto:[email protected]>> 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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-- GDB has a 'break' feature; why doesn't it have 'fix' too?




-- GDB has a 'break' feature; why doesn't it have 'fix' too?




--
GDB has a 'break' feature; why doesn't it have 'fix' too?

--
Ilker Temir
<https://twitter.com/IlkerTemir> <https://www.linkedin.com/in/ilkertemir>
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