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Thread: Remote Ground Station (RGS) squitters

  1. #21
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    Feb 2013
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    13
    Quote Originally Posted by Peter1066 View Post
    Hi forum,

    Have been getting used to monitoring VDL2 on 136.975. There sure is lots of messages per minute compared with regular ACARS
    I am trying to see some ground stations - can anyone say whether they use a similar format as on ACARS?

    I have received this kind of message that I think is squitter. There is a mistake on coordinates because this is not Sao Paulo!

    05/04/15 10:18:09 UTC
    Broadcast address (hexa): FFFFFF (All aircraft)
    Source address (hexa): 219D18 (Ground Station, delegated address , command frame)
    XID (Exchange Identification) frame F=0
    Data (hexa): 828000140109383838353A3139393302020001030320A488F0 001F000156040120C10453425350C406000000000000C50494 000000C80303EFA6
    Public parameters:HDLC public parameter: 8885:1993
    Classes of procedures (hexa): 0001
    HDLC functions (hexa): 20A488
    Private parameter set identifier: V
    AVLC specific options parameter (hexa): 20
    Airports covered by the ground station: SBSP SAO PAULO/CONGON (BRAZIL)
    ATN router nets:
    * ADM identifier (hexa): 000000 User field (hexa): 000000
    Station operator mask (address) (hexa): 200000
    Ground station (+/- 3'): 06°12'N 009°00'W

  2. #22
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    Mar 2015
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    I guess this the information relating to the ground station "Source address (hexa): 219D18 (Ground Station, delegated address , command frame)" so very different from the regular ground station Squitter as this one from London Stansted on 131.975 MHz logged here. By the way I use a Multipsk decoder for both ACARS and VDL2


    20/03/15 10:05:33 UTC
    Mode: e Identifier: Ack.: {NAK}
    Message type: SQ
    Block:
    Message: 02XS STN EGSS 05153N00014E V136975/

  3. #23
    ACARS mode: e Aircraft reg:
    Message label: SQ Block id: [Uplink]
    Message content:-
    02XS JER EGJJ 0 4912N 00211W

  4. #24
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    ACARS Mode: 2 Aircraft reg: _______
    Message Label: SQ Block ID: [Uplink]
    Message content:-
    01XASUBKSUB1ARINC
    ----------------------------------------------------------[16/11/2017 10:46]-

    Heard near Juanda Airport ( WARR ) , Surabaya, Indonesia on 131.45
    It seems from ARINC ground station

  5. #25
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    Jan 2013
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    -=[ Squitter message ]=-

    ACARS Mode: s Aircraft reg: _______
    Message Label: SQ Block ID: [Uplink]
    Message content:-
    00XS
    ----------------------------------------------------------[16/11/2017 11:05]-

    Heard near Juanda Airport ( WARR ) , Surabaya, Indonesia on 131.55
    It seems from SITA ground station

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