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4.2.2.22 "Send Redundant Burst with GPS" command
This command is used to initiate a redundant bursted message (as setup in STX configuration). Bytes 1 – 6 of the first
packet of the message shall contain latitude and longitude in standard Globalstar 24-bit format. Since each on-air
message must be a multiple of 9 bytes, the message will contain up to 16 9-byte packets depending on the size of the
payload.
Byte
0
1
2
3
4
5
6 - n
n+1-
n+2
Example Command:
Where:
•
Payload Byte 0:
•
Payload Byte 7:
•
Payload Byte 8:
Example Command:
Use or disclosure of data contained on this sheet is subject to the restrictions in the Distribution Statements on the title page of this
06/18/20
Send Redundant Burst with GPS command format
Bits
Parameter
0 - 7
Leader
0 - 7
Length
0 - 7
Command Code.
0 - 7
Byte 0 value
0 - 7
Byte 7 value
0 - 7
Byte 8 value
Additional data
0 - 15
CRC
AA 08 33
AA BB CC
57 C3
0xAA
0xBB
0xCC
AA 11 33
01 02 03 04 05 06 07 08 09 0A 0B 0C
GLOBALSTAR PROPRIETARY AND CONFIDENTIAL INFORMATION
Subject to Change without Notice
Description
Always a value of 0xAA.
Variable 0x08 – 0x90 (144 bytes)
0x33 = Send Redundant Burst with GPS.
The value to transmit as byte 0 of first packet
The value to transmit as byte 7 of first packet
The value to transmit as byte 8 of first packet
Up to 135 additional bytes of data (16 9 byte
packets). Maximum value of n = 141. If this
number is not divisible by 9, the end of the final
packet of the message will be zero padded.
C6 8E
document.
P a g e | 48
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