Orient ОС-101 [108/244] Rawalmraw almanac information

Orient ОС-201 [108/244] Rawalmraw almanac information
COMNAV OEM BOARD REFERENCE MANUAL
Chapter 4. Log Messages
ComNav Technology Ltd.
89
CNT-OEM-RM001, Rev 1.8
Field#
Field Type
Data Description
Format
Binary
Offset
8
[CR][LF]
Sentence terminator (ASCII only)
-
-
a:In thebinarylogcase,an additional2 bytesofpaddingareaddedtomaintain 4-bytealignment.
4.2.1.20 RAWALM Raw Almanac Information
Description
This message contains raw almanac sub frames received from GPS satellite.
Message ID
74
Recommended Input
log rawalmb
Supported Format
binary
Reply (Binary)
Field#
Field Type
Data Description
Format
Binary
Offset
1
RAWALM header
Log header
0
2
ref week
Almanac reference week number
Ulong
H
3
ref secs
Almanac reference time (s)
Ulong
H+4
4
subframes
Number of subframes to follow
Ulong
H+8
5
svid
SV ID (satellite vehicle ID)
UShort
H+12
6
data
Subframe page data
Hex
H+14
7...
Next subframe offset = H + 12 + (subframe x 32)
variable
xxxx
32-bit CRC (ASCII and Binary only)
Hex
H + 12 + (32
x subframes)
variable
[CR][LF]
Sentence terminator (ASCII only)
-
-
4.2.1.21 RAWEPHEM Raw Ephemeris Information
Description
This message contains raw ephemeris information received from GPS satellite.
Message ID
41

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