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Thread: Hong Kong Radar

  1. #101
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    Quote Originally Posted by Dundee View Post
    Apart from high rising buildings, the terrible terrain in HK also make the coverage limited.

    For example, most places in East part of HK are countrysides, hills, cliffs, isolated islands, its not easy to setup a radar and so the coverage in SE, E of HK FIR is too bad...

    As someone stated the Civil Aviation Department in HK are just setting up their primary and secondary radars in many top of the hills, our feeders cannot have too much effort, money to do so...
    Changi Airport ( WSSS ) just commissioned a new SGD 300 Million Thales ATC system.

    This is their 3rd System upgrade.

    1st ATC System = Signnal ( Holland )

    2nd ATC System = Thomson

    3rd ATC System = Thales
    F-WSSS1 - Cats refused to Pee & Pooh on RadarBox - Running a FR24 Receiver & DVB-T Dongle 24/7 to piss off The Chief Thief.

  2. #102
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    With the new F-VMMC2, coverage over the south west area has improved.
    On the other hand, T-RCKH4 provides some good coverage to the east.
    Now only a small area over ELATO and the south east HK FIR is still not covered, which can be hard due to distance from land and quite dependent on aircraft cruising altitude. The planes even sometimes have to use HF instead of VHF to contact manila.
    May be a receiver at Shantou will work.

  3. #103
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    Quote Originally Posted by microtony View Post
    With the new F-VMMC2, coverage over the south west area has improved.
    On the other hand, T-RCKH4 provides some good coverage to the east.
    Now only a small area over ELATO and the south east HK FIR is still not covered, which can be hard due to distance from land and quite dependent on aircraft cruising altitude. The planes even sometimes have to use HF instead of VHF to contact manila.
    May be a receiver at Shantou will work.
    Indeed... QUite happy to have the south west coverage improved now. Hopefully a few more FR24 receivers would be sent to that part of Hong Kong/Macau... T feeders are also doing a good job.

  4. #104
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    I noticed that Dundee's Virtual Radar Server is showing some planes in the south east area, but they are not shown on FR24 (or shown as T-EST1).
    Anyone know the reason why?

  5. #105
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    Quote Originally Posted by microtony View Post
    I noticed that Dundee's Virtual Radar Server is showing some planes in the south east area, but they are not shown on FR24 (or shown as T-EST1).
    Anyone know the reason why?
    Actually my basestation port of my T-VHHH19 ads-b machine (Machine is composed by a Mode-S Beast card and a single-board computer which is similar to Flightfeeder) is down, so I need to use a PC to convert signal from AVR to basestation then feed to FR24. During the coversion, maybe due to network traffic or network restriction (like PCCW WiFi need "semi-manual" reconnect every 4 hours), the conversion is sometimes interrupted.

    To deal with the problem, I have sent the email to the manufacturer of ads-b machine and also FR24 Support separately, but a perfect solution seems still cannot be found yet.

    If someone can write and send me an ARM LE, statically linked software to convert data from AVR to Basestation, I will give him a big thanks !!!
    Last edited by Dundee; 2014-04-30 at 20:45.
    T-VHST9: http://vhst9.hopto.org/
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  6. #106
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    Quote Originally Posted by Dundee View Post
    Actually my basestation port of my T-VHHH19 ads-b machine (Machine is composed by a Mode-S Beast card and a single-board computer which is similar to Flightfeeder) is down, so I need to use a PC to convert signal from AVR to basestation then feed to FR24. During the coversion, maybe due to network traffic or network restriction (like PCCW WiFi need "semi-manual" reconnect every 4 hours), the conversion is sometimes interrupted.

    To deal with the problem, I have sent the email to the manufacturer of ads-b machine and also FR24 Support separately, but a perfect solution seems still cannot be found yet.

    If someone can write and send me an ARM LE, statically linked software to convert data from AVR to Basestation, I will give him a big thanks !!!
    Dundee,

    There is such software - the decodeadsb by John Carroll. It decodes ads-b from mode s beast AVR with a linux computer, and also has the ARM feeder to feed to FR24. Just like a rpi running dump1090, except the software is decodeadsb and it feeds to FR24 24/7. You have your rpi free? maybe you can try with that first, and see how the software performs in the rpi in heavy traffic. John's email is in this post: http://forum.flightradar24.com/threa...ll=1#post40171

  7. #107
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    Quote Originally Posted by North Borneo Radar View Post
    Dundee,

    There is such software - the decodeadsb by John Carroll. It decodes ads-b from mode s beast AVR with a linux computer, and also has the ARM feeder to feed to FR24. Just like a rpi running dump1090, except the software is decodeadsb and it feeds to FR24 24/7. You have your rpi free? maybe you can try with that first, and see how the software performs in the rpi in heavy traffic. John's email is in this post: http://forum.flightradar24.com/threa...ll=1#post40171
    Thanks NBR and John! After installing John's program, everything works fine so far and my linux knowledge is much enriched!
    T-VHST9: http://vhst9.hopto.org/
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  8. #108
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    Quote Originally Posted by Dundee View Post
    everything works fine so far and my linux knowledge is much enriched!
    I have just bought rpi during my Taipei trip over Tuen Ng! I hope I'll have time to give it a try. Dundee, I hope I'll make it too.

  9. #109
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    Quote Originally Posted by royng View Post
    I have just bought rpi during my Taipei trip over Tuen Ng! I hope I'll have time to give it a try. Dundee, I hope I'll make it too.
    Great! In case you have any problem, you may leave a reply here or find me David Bush@HKADB FB Group.
    T-VHST9: http://vhst9.hopto.org/
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  10. #110
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    Quote Originally Posted by royng View Post
    I have just bought rpi during my Taipei trip over Tuen Ng! I hope I'll have time to give it a try. Dundee, I hope I'll make it too.
    There is a few choices of software to run for ARM computers now to decode adsb data. It is:

    1) dump1090 - guide available at this link: http://forum.flightradar24.com/threa...e-to-feed-FR24 Peterhr is the guru in this.
    2) decodeadsb by John Carroll - work is ongoing to upgrade the software to run on debian instead of angstrom for Beagle bone platform. Supports Odroid U3 for high traffic areas. Link: http://forum.flightradar24.com/threa...ll=1#post40171
    3) modesdeco by sergsero - google and you will find where to get it.
    4) FR24's own decoder software in BETA test.

    Most popular without doubt is dump1090. Method 1 is for RTL-SDR 820T dongles. Method 2 supports mode s beast and the dongles. Method 3 I am not entirely sure, definitely dongle but I think also can run on beast.

    By the way Dundee how is decodeadsb working for you at VHHH?
    Last edited by North Borneo Radar; 2014-06-03 at 13:49.

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