NavCom LAND-PAK Rev.N - Manual (Page 118)

Technical Reference Manual Rev. N
Blk = All; Blu = IOP w/Internal Radio ; Red = IOP & LBM ; Grn = Engine only 116
0x86 - Channel Status - 18 + (14 x N) bytes
This message contains: over-all receiver channel status, GPS week and time of week, solution
status, number and ID of satellites tracked, number and identity of satellites used in solution,
and PDOP. Repeated for each satellite: channel tracking status, channel number, current IODC,
elevation, azimuth, C/A ratio, P2 C/A ratio, dGPS data stage, and hardware channel number.
Record
Usage Command - No
Response - Yes Input: Not used;
Output: reports network information by sub-ID; not supported my 0x20
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 86 (hex) U08 1
Length 0x00xx (18 + 14*n bytes) U16 2
W1 GPS week; since Jan 6, 1980 U16 week 0 - 65535 2
W2 GPS time of week U32 sec 0 - 604800 4
W3
B0-B2: Engine status
000: Start power up & initial BIT test
001: (Reserved)
010: Cold start
011: Warm start
100: Navigating normally
101: Hardware failure
B3=0: Almanac invalid
1: Almanac valid
B4-B5 Time is
00: invalid
01: from RTC
10: from one SV solution
11: from normal navigation
B6-B7 Position is
00: invalid
01: old
10: from normal navigation
U08 1
W4
Solution status
B0=0: Invalid solution
1: Valid solution
When solution status word B0=0,
indicating a position solution failure,
the reason for failure is located in bits
B8 through B11.
0000: No error
0001: Less satellites available than the
specified minimum
0010: PDOP is greater than the
specified limit
0101: Solution residuals too high
U16 2
Table continued on next page