GAPS - User Guide
Transponder position message: the frame contains 32 bytes in binary format. This message is
sent every 20 seconds and if any change in the sequence.
Message
Byte 0 0xDF Start of message
Byte 1 0x03 Head Byte TP sequence Telegram
Byte 2 0xSS Number of TP in use From 1 to 13
Byte 3
Byte 4
0xTT
0xTT
Number of TP 1 From 1 to 127
Byte 5
Byte 6
0xTT
0xTT
Number of TP 2 From 1 to 999
Byte 7
Byte 8
0xTT
0xTT
Number of TP 3 From 1 to 999
Byte 9
Byte 10
0xTT
0xTT
Number of TP 4 From 1 to 999
Byte 11
Byte 12
0xTT
0xTT
Number of TP 5 From 1 to 999
Byte 13
Byte 14
0xTT
0xTT
Number of TP 6 From 1 to 999
Byte 15
Byte 16
0xTT
0xTT
Number of TP 7 From 1 to 999
Byte 17
Byte 18
0xTT
0xTT
Number of TP 8 From 1 to 999
Byte 19
Byte 20
0xTT
0xTT
Number of TP 9 From 1 to 999
Byte 21
Byte 22
0xTT
0xTT
Number of TP 10 From 1 to 999
Byte 23
Byte 24
0xTT
0xTT
Number of TP 11 From 1 to 999
Byte 25
Byte 26
0xTT
0xTT
Number of TP 12 From 1 to 999
Byte 27
Byte 28
0xTT
0xTT
Number of TP 13 From 1 to 999
Byte 29 0x00 Dummy byte Filled with 0
Byte 30 0xXX Checksum Bytes OR exclusive (except Checksum and End of
frame). Bit 7 of the Checksum is always 0.
Byte 31 0xFF End of frame
204 MU-GAPS-AN-005-H - November 2019
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