Trimble Outdoors THUNDERBOLT 64057-00-ENG User Manual
Page 59
Trimble ThunderBolt E GPS Disciplined Clock User Guide
57
Trimble Standard Interface Protocol
A
Note – The sample length is the number of milliseconds over which the sample was
averaged.
Note – The code phase value is the average delay over the sample interval of the received
C/A code, and is measured with respect to the receiver's millisecond timing reference.
Report Packet 0x5B: Satellite Ephemeris Status
Packet 0x5B provides satellite ephemeris status. This packet is sent in response to
packet 0x3B.
Report Packet 0x5C: Satellite Tracking Status
The receiver sends this packet in response to command packet 0x3C.
9-12
Code phase
Single
1/16th chip
13-16
Doppler
Single
Hertz @ L1
17-24
Time of measurement Double
seconds
Byte
Item
Type
Units
0
SV PRN number
UINT8
1-4
Time of collection
Single
seconds
5
Health
UINT8
6
IODE
UINT8
7-10
toe
Single
seconds
11
Fit interval flag
UINT8
12-15
SV accuracy (URA)
Single
meters
Byte
Bit
Item
Type
Value
Meaning
0
SV PRN number
UINT8
1-32
PRN
1
0:2
slot number
bit field
0 0 0
Not used
1
3:7
channel number
bit field
0 0 0 0
Channel 1
0 0 0 1
Channel 2
0 0 1 0
Channel 3
0 0 1 1
Channel 4
0 1 0 0
Channel 5
0 1 0 1
Channel 6
0 1 1 0
Channel 7
0 1 1 1
Channel 8
1 0 0 0
Channel 9
1 0 0 1
Channel 10
1 0 1 0
Channel 11
1 0 1 1
Channel 12
Byte
Item
Type
Units