Message Type 85, ULCP binary position message with GPS coordinates
Header: 0x55 0xSS 0x06 0x00 0x00 0x18 0x0000
Message body:
| Hex | Description |
| 4 bytes | Normalized latitude (RMC latitude x 100,000) |
| 4 bytes | Normalized longitude (RMC longitude x 100,000) |
| 2 bytes | Speed in knots |
| 2 bytes | Heading |
| 1 byte | GPS data validity: 0x”A” = valid; 0x”V” = invalid; 0x”B” = buffered valid; 0x”W” = buffered invalid. |
| 1 byte | Number of satellites used for position fix |
| 1 byte | Position type (from GGA message) |
| 1 byte | Digital input state (0= off, 1=on): bit 0 = input #1, bit 1 = input #2... bit 5 = input #6, bit 6 = Not used, bit 7 = ignition status. |
| 2 bytes | Altitude in meters |
| 2 bytes | Differential correction age (only valid if differential correction being used) |
| 4 bytes | Time (based on number of seconds since 00:00:00 January 1st 1970 |
Note: ULCP binary messages should not be used for local serial report mode 1 and 2 in applications where timed message delivery is critical.
Last modified 6 years ago
Last modified on 14-04-29 10:59:56 AM