Globalstar ST100 - Send Redundant Burst with GPS Response

46ST100 User Manual v1 Confidential & Proprietary Information
8545-0194-01 v1.0
Example Command: AA 08 33 AA BB CC 57 C3
Where:
• Payload Byte 0: 0xAA
• Payload Byte 7: 0xBB
• Payload Byte 8: 0xCC
Example Command: AA 11 33 01 02 03 04 05 06 07 08 09 0A 0B 0C C6 8E
Where:
• Payload Byte 0: 0x01
• Payload Byte 7: 0x02
• Payload Byte 8: 0x03
• Payload Byte 9: 0x04
• Payload Byte 10: 0x05
• Payload Byte 11: 0x06
• Payload Byte 12: 0x07
• Payload Byte 13: 0x08
• Payload Byte 14: 0x09
• Payload Byte 15: 0x0A
• Payload Byte 16: 0x0B
• Payload Byte 17: 0x0C
Example Response: AA 05 33 C1 C7
Example Payload: 0x012B485DBFF02E02030405060708090A0B0C
Where: 2B485D is the 24-bit latitude 30.433126688004 (North)
BFF02E is the 24-bit longitude -90.086903572083 (West)
See section 4.6: “24 bit location format” for documentation of the encoding/decoding of Globalstar on-air location data.
BYTE BITS PARAMETER DESCRIPTION
0 0 - 7 Leader Always a value of 0xAA
1 0 - 7 Length 5
2 0 - 7 Command Code 0x33 = ACK or 0xFF = NAK
3-4 0 - 15 CRC
SEND REDUNDANT BURST WITH GPS RESPONSE