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ICAO24 / HEX 445566 service request

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  • Charky
    replied
    ok, then.
    from somebody who should know it.
    Its noise or signals around which might give this pattern. Even with FEC switched on and CRC those wrong message interpretations might happen and cannot really be avoided. It can be partially avoided if you accept only 5 messages out of 20 as valid.
    I think this can be closed now.
    thanks all.

    Leave a comment:


  • Westone
    replied
    I pick this up several times a day with my FR24 receiver here in Mid Canterbury, NZ, but only few couple of seconds each time.

    Leave a comment:


  • Charky
    replied
    I would say forget it more or less this is with the fr24box, the 1 above with the beast.
    and from near Frankfurt, looks like 445566 is wrong decoded noise
    Sunday 1 Mar 2015
    445566 19:51:56 03:58
    Monday 2 Mar 2015
    445566 05:56:57 00:00
    445566 07:32:13 00:00
    445566 10:27:26 00:52
    445566 11:09:54 00:00
    445566 15:55:48 00:00
    445566 16:58:28 39:17
    445566 18:35:50 00:00
    445566 19:20:10 00:00
    445566 21:10:05 00:00
    445566 22:09:02 00:00
    Tuesday 3 Mar 2015
    445566 06:29:46 15:51
    445566 07:44:52 00:00
    445566 09:31:38 00:00
    445566 11:00:11 06:07
    445566 11:32:44 00:00
    445566 12:08:14 00:00
    445566 13:14:00 00:00
    445566 15:54:14 06:12
    445566 18:49:57 22:59
    445566 20:37:12 00:00
    445566 21:48:04 00:00

    Leave a comment:


  • Charky
    replied
    hmm,
    since 2013 around 50 pages, before my vrs in Geneva was only running sometimes
    here the last days. 1 with an altitude which is completely wrong
    20:24:24 445566 00:00
    21:04:20 445566 00:00
    Sunday 8 Mar 2015
    09:14:52 445566 04:13
    12:45:52 445566 00:00
    18:08:38 445566 25:50
    Monday 9 Mar 2015
    10:31:07 445566 00:00
    11:53:49 445566 00:00
    12:30:41 445566 20:33
    13:35:32 445566 04:49
    18:42:32 445566 00:00
    21:20:59 445566 10:14
    Tuesday 10 Mar 2015
    12:09:37 445566 00:00
    12:44:23 445566 02:56
    15:25:04 445566 00:00
    17:15:11 445566 00:00
    17:43:58 445566 05:58
    19:05:09 445566 00:00
    Wednesday 11 Mar 2015
    12:11:02 445566 18:25
    17:12:22 445566 00:00
    Thursday 12 Mar 2015
    15:01:18 445566 00:00
    19:06:47 445566 02:07
    Friday 13 Mar 2015
    15:37:34 445566 00:00
    18:18:05 445566 00:00
    Saturday 14 Mar 2015
    08:46:35 445566 05:45
    11:12:53 445566 00:00
    12:32:31 445566 00:00
    12:59:21 445566 16:24
    15:21:33 445566 08:25
    16:36:30 445566 00:00
    18:56:37 445566 02:02
    19:58:41 445566 00:00
    21:10:41 445566 00:00
    Sunday 15 Mar 2015
    08:26:45 445566 14:48
    10:03:42 445566 18:22
    12:36:08 445566 00:00
    13:04:06 445566 09:15 225 ft
    16:57:40 445566 00:00
    19:00:48 445566 00:00
    21:07:13 445566 00:00
    21:56:37 445566 00:00
    Monday 16 Mar 2015
    12:25:44 445566 00:00
    17:22:23 445566 00:00
    Tuesday 17 Mar 2015
    09:15:27 445566 00:00
    10:58:11 445566 00:00
    15:30:24 445566 00:00
    18:47:28 445566 00:00

    Leave a comment:


  • SoCalBrian
    replied
    Report for 445566 on these two VRS page.
    http://virad.openskymap.net/VM721/Ic...tm?icao=445566
    http://virad.openskymap.net/VM712/Ic...tm?icao=445566

    Thread for 445566 on the Planeplotter yahoogroup.
    https://groups.yahoo.com/neo/groups/.../topics/108780

    and

    My VRS screenshot for Southern California area.
    445566.jpg
    Last edited by SoCalBrian; 2015-03-17, 14:03.

    Leave a comment:


  • Oblivian
    replied
    Sure won't be if the same options are enabled as the Beast that they were born from...

    "2015/02/16","17:50:16.000","1111111","445566"," ","Unknown","0","0","0","0.00000","0.00000","0","0 ","0.0","0.0","0","0000"
    "2015/02/17","12:13:17.000","1111111","445566"," ","Unknown","0","0","0","0.00000","0.00000","0","0 ","0.0","0.0","0","0000"
    "2015/02/17","12:17:18.000","1111111","445566"," ","Unknown","0","0","0","0.00000","0.00000","0","0 ","0.0","0.0","0","0000"
    "2015/02/17","15:37:44.000","1111111","445566"," ","Unknown","0","0","0","0.00000","0.00000","0","0 ","0.0","0.0","0","0000"
    "2015/02/17","15:37:44.000","1111111","445566"," ","Unknown","0","0","0","0.00000","0.00000","0","0 ","0.0","0.0","0","0000"
    "2015/02/17","19:54:46.000","1111111","445566"," ","Unknown","0","0","0","0.00000","0.00000","0","0 ","0.0","0.0","0","0000"
    "2015/02/18","10:18:59.000","1111111","445566"," ","Unknown","0","0","0","0.00000","0.00000","0","0 ","0.0","0.0","0","0000"

    Leave a comment:


  • Charky
    replied
    lets see if they find the time to findout something at the fr24 servers. fr24 seems to have more permanent uploaders and are quicker with their boxes. The only problem I see, I dont know if the fr24boxes are configured to receive the DF11. they are configured not to receive all messages.
    there are some around your aerea with PP: http://www.coaa.co.uk/pp-sh-wo-jpg.php
    Last edited by Charky; 2015-03-17, 11:01.

    Leave a comment:


  • Oblivian
    replied
    Got a post link or number? Cause yes, I'm following each message in the thread to see how I can stop it showing up and so far it like I'm the only one to report from oceania.

    Leave a comment:


  • Charky
    replied
    hi,
    if you followed it it had been also received in Australia and NZ. And it is a DF11 which is send out only as reply of an ATC's UF11 request to all. so you will not receive a permanent stream like with other messages. But never mind if not visible in your logs its visible in others receivers logs at home.

    Leave a comment:


  • Oblivian
    replied
    Not as a solid signal. Only a single data packet each time. So not enough for it to log to the 30003 capturing software I use

    That and I'm continents away from the EU ones being reported atm
    Last edited by Oblivian; 2015-03-17, 10:07.

    Leave a comment:


  • Charky
    replied
    Originally posted by Oblivian View Post
    Ongoing talks in the Planeplotter yahoo group forums about it. Its entirely possibly its a planeplotter MLAT system only bug
    hi,
    dont think so, because it appears in the local logs of each receiver too.

    Leave a comment:


  • Oblivian
    replied
    Ongoing talks in the Planeplotter yahoo group forums about it. Its entirely possibly its a planeplotter MLAT system only bug

    Leave a comment:


  • Charky
    started a topic ICAO24 / HEX 445566 service request

    ICAO24 / HEX 445566 service request

    There is an interesting issue with this hexcode. It is received around the world by all kind of receivers (RTL, SBS, radarscape, airnav) using different software combinations. And that by several receivers in the same region at the same time. Some MLAT positions had been calculated. It has been seen first around beginning of 2011 and it is using DF11 messages (ModeS not ADSB).
    It would be nice if somebody at the FR24-servers could run a request to get the MLAT data of it, position, altitude, speed? and time and post it here.
    thanks

    ps.: it had been seen within minutes some 100km away, satellite ?
    Last edited by Charky; 2015-03-17, 08:41.
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