Product Info

GLOBALSTAR PROPRIETARY AND CONFIDENTIAL INFORMATION
Use or disclosure of data contained on this sheet is subject to the restrictions in the Distribution Statements on the title page of this
document.
06/18/20 Subject to Change without Notice P a g e | 49
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
Send Redundant Burst with GPS response
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
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.
4.2.2.23 “Query Location” command
This command returns the GPS coordinates and timestamp of the most recent fix obtained by the device (which might be as “old” as
the track interval time). It returns zeros if no fix has been obtained since reset, or the last fix attempt failed. See section on 24-bit
location format for a description of the latitude and longitude encoding.