0xb0 - raw meas. data block – 4 + 8 + (16*n) bytes – NavCom LAND-PAK Rev.N User Manual
Page 136
Technical Reference Manual Rev. N
Blk = All;
Blu = IOP w/Internal Radio
;
Red = IOP & LBM
;
Grn = Engine only
134
0xb0 - Raw Meas. Data Block – 4 + 8 + (16*N) bytes
This message contains the Raw Measurement Data Block: GPS Week, GPS Time of Week,
Time Slew Indicator and Status.
Word Wn1 is the number of the first satellite reporting Raw Measurement Data. Information
included is Channel Status, CA Pseudorange, L1 Phase, P1-CA Pseudorange, P2-CA
Pseudorange, and L1 Phase. This data stream is repeated for any additional satellite.
Record
Usage
Command - No
Response - Yes
Input: Not used;
Output: reports raw satellite measurement data (may be post processed)
Ref
Message Field Description
Data
Type
Units
Range
Scale
Byte
Count
STX
02
(hex)
U08
1
PRA1 99 (hex)
U08
1
PRA2 66 (hex)
U08
1
ID
B0
(hex)
U08
1
Length 0x00xx
U16
2
W1
GPS Week
U16
0 - 65535
2
W2
GPS Time of Week
U32 msec
0 - 604799999 Lsb: 1ms
4
W3
Time Slew Accumulator
U08 µsec
0 - 255
Lsb: 1/1023ms
1
W4
Status
B0-B3: Number of Raw
Measurement Blocks to
follow (N)
B0-B5: Reserved
B6: Clock Stable (offset < 2ppm)
B7: Channel time set (Last
measurement)
U08
Bitmap
Bitmap
Bitmap
Bitmap
0 - 12
1
Repetitive Blocks
Wn1
SV ID Status
B7: CA,&L1 Valid
B6: P1 Valid
B5: P2&L2 Valid
B4-B0: SV id (PRN)
U08
1 – 32
1 = Valid
1 = Valid
1 = Valid
0 = 32
1
Wn2
Channel Status
B3-B0: Logical Channel (1-15)
B7-B4: CA C/No (dB Hz > 35)
U08
Bitmap
Bitmap
1 - 15
0 - 15
N+1
35 + C/No
1
Wn3
CA pseudorange (1/16 L1 cycle)
U32
L1
Cycles
0 -
4294967295
LSB: 2
-4
4
Wn4
L1 phase (1/256 L1 cycle)
B23-B4: carrier phase
B3-B0: cycle slip counter
L1 Carrier phase = CA + L1 phase
S24
Bitmap
Bitmap
L1
Cycles
0 – 524287
-1 – (-524288)
LSB: 2
-8
3
Ref
Message Field Description
Data
Units
Range
Scale
Byte