GNSS Compass Reference Manual
Page 53 of 85
Version 1.1
13/01/2021
10.10.1.2
Filter Status
This field contains 16 bits that indicate the status of the filters. These are boolean fields with a zero
indicating false and one indicating true.
Bit
Description
0
Orientation Filter Initialised
1
Navigation Filter Initialised
2
Heading Initialised
3
UTC Time Initialised
4
GNSS Fix Status, see section 10.10.1.3
5
6
7
Event 1 Occurred
8
Event 2 Occurred
9
Internal GNSS Enabled
10
Dual Antenna Heading Active
11
Velocity Heading Enabled
12
Dual Antenna Heading Outage for over 60 Seconds
13
External Position Active
14
External Velocity Active
15
External Heading Active
Table 41: Filter Status
10.10.1.3
GNSS Fix Status
Value
Bit 6
Bit 5
Bit 4
Description
0
0
0
0
No GNSS fix
1
0
0
1
2D GNSS fix
2
0
1
0
3D GNSS fix
3
0
1
1
SBAS GNSS fix
4
1
0
0
Differential GNSS fix
5
1
0
1
Omnistar GNSS fix
6
1
1
0
RTK Float GNSS fix
7
1
1
1
RTK Fixed GNSS fix
Table 42: GNSS fix status
10.10.1.4
Unix Time Seconds
This field provides UTC time in seconds since January 1, 1970, including leap seconds.
