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RoyalTek GPS Receiver REB-2000/REB-12R REV-2000 Operational Manual
30
zero values
Table 45 Trk. to NAV Struct. Trk._status Field Definition
Field Definition Hex Value Description
ACQ_SUCCESS 0x0001 Set if acq/reacq if done successfully
DELTA_CARPHASE_VALI
D
0x0002 Integrated carrier phase is valid
BIT_SYNC_DONE 0x0004 Bit sync completed flag
SUBFRAME_SYNC_DONE 0x0008 Subframe sync has been done
CARRIER_PULLIN_DONE 0x0010 Carrier pull in done
CODE_LOCKED 0x0020 Code locked
ACQ_FAILED 0x0040 Failed to acquire S/V
GOT_EPHEMERIS 0x0080 Ephemeris data available
Note – When a channel is fully locked and all data is valid , the status shown is 0xBF
Raw Tracker Data Out – Message
I.D.5
Output Rate:1 Hz
Table 46 lists the binary and ASCII
message data format for the raw tracker
data .
Example:
A0A20033 – Start Sequence and Payload
Length
05000000070013003F00EA1BD4000D03
9200009783000DF45E000105B5FF90F5
C20000242827272327242427290500000
0070013003F – Payload
0B2DB0B3 – Message Checksum and
End Sequence
Table 46 Raw Tracker Data Out
Binary(Hex) ASCII(Decimal)
Name
Bytes
Scale Example
Units
Scale Example
Message ID 1 05 5
Channel 4 00000007 7
SVID 2 0013 19
State 2 003F Bitmap
1
63
Bits 4 00EA1BD4 Bit 15342548
Ms 2 000D Ms 13
Chips 2 0392 Chip 914
Code Phase 4
2
-16
00009783 Chip
/2
-16
38787
Carrier Doppler 4
2
-10
000DF45E Rad/2ms
/2
-10
914526
Time Tag 4 000105B5 Ms 66997
Delta Carrier
2
4
2
-10
FF90F5C2 Cycles
/2
-10
-7277118
Search Count 2 0000 0
C/NO 1 1 24 dBHz 36
C/NO 2 1 28 dBHz 40
C/NO 3 1 27 dBHz 39
C/NO 4 1 27 dBHz 39
C/NO 5 1 23 dBHz 35
C/NO 6 1 27 dBHz 39
C/NO 7 1 24 dBHz 36
C/NO 8 1 24 dBHz 36
C/NO 9 1 27 dBHz 39
C/NO 10 1 29 dBHz 41
Power Loss
Count
1 05 5
Phase Loss
Count
1 00000007 7