Trimble Outdoors THUNDERBOLT 64057-00-ENG - Manual (Page 84)

A Trimble Standard Interface Protocol
82 Trimble ThunderBolt E GPS Disciplined Clock User Guide
5 Not used
6 Disciplining Disabled
3 Self-Survey Progress UINT8 0-100%
4-7 Holdover Duration UINT32 0 Seconds
8-9 Critical Alarms UINT16 Bit field Bit 4: DAC at rail
10-11 Minor Alarms UINT16 Bit field Bit 0: DAC near rail
Bit 1: Antenna open
Bit 2: Antenna shorted
Bit 3: Not tracking satellites
Bit 4: Not disciplining oscillator
Bit 5: Survey-in progress
Bit 6: No stored position
Bit 7: Leap second pending
Bit 8: In test mode
Bit 9: Position is questionable
Bit 10: Not used
Bit 11: Almanac not complete
Bit 12: PPS not generated
12 GPS Decoding Status UINT8 0x00 Doing fixes
0x01 Don't have GPS time
0x03 PDOP is too high
0x08 No usable sats
0x09 Only 1 usable sat
0x0A Only 2 usable sats
0x0B Only 3 usable sats
0x0C The chosen sat is unusable
0x10 TRAIM rejected the fix
13 Disciplining Activity UINT8 0 Phase locking
1 Oscillator warm-up
2 Frequency locking
3 Placing PPS
4 Initializing loop filter
5 Compensating OCXO (holdover)
6 Inactive
7 Not used
8 Recovery mode
9 Calibration/control voltage
14 Spare Status 1 UINT8 0
15 Spare Status 2 UINT8 0
16-19 PPS Offset Single ns
20-23 Clock Offset Single ppb
24-27 DAC Value UINT32
Byte Item Type Value Description