System Description

System Description and Installation Manual for MXS ICD10004-01
© Sagetech Corporation 2018 Confidential Proprietary Export-Controlled Page 50 of 160
Time of Fix (UTC)
42
TOF6
Time of fix in UTC.
hhmmss.sss
The value is sent as ASCII characters. The hours, minutes, seconds, and fractions of seconds are sent,
indicating the time of fix, relative to midnight UTC.
For example, if the time of fix was 22 hours, 33 minutes, and 23 seconds, the packet structure would look
like:
[ 32 ] [ 32 ] [ 33 ] [ 33 ] [ 32 ] [ 33 ] [ 2E ] [ 30 ] [ 30 ] [ 30 ]
If Time of Fix is not available, fill this field with Space characters (0x20).
43
TOF7
44
TOF8
45
TOF9
GPS Height (WGS-84)
Byte Offset
Byte Name Field Description
46
HT0
GPS Height (WGS-84)
All zeros – Altitude not available Else
Floating point Height (meters) Above WGS-84 ellipsoid
47
HT1
48
HT2
49
HT3
Horizontal Protection Limit (HPL)
Byte Offset
Byte Name Field Description
50
HP0
Horizontal Protection Limit (HPL)
All zeros – HPL not available Else
Floating point radius (meters) of a circle centered on the true position that contains
the computed position with a probability of 10
-7
/hour.
51
HP1
52
HP2
53
HP3
Horizontal Figure of Merit (HFOM)
Byte Offset
Byte Name Field Description
54
HM0
Horizontal Figure of Merit (HFOM)
All zeros – HFOM not available Else
Floating point radius (meters) of a circle in the horizontal plane and centered at the true position
that contains the computed position with an accuracy of 95%
55
HM1
56
HM2
57
HM3