Table of Contents
Advertisement
Engineering Mode
GPS4 - GPS Position Uncertainty
Operator's Manual
This screen presents a bar graph representing the HOOP for the past
23 hours. I f you arc trying to do precision work or navigation in the
same general area (within 100 miles) as the day before, you can look at
this screen to see when the best HOOP periods are. The GPS constel-
lation shifts back 4 minutes per day. That means you can expect the
GPS coverage to be virtually the same today as it was yesterday.
.. m····
rn
.
............................~
:©
GPS 4
"'",.<
UNCERTRINTV
ik' i iP' A ffi
HDOP:
1.7
VDOP:
2.2
HOOP
' " I
!._ _
. ;~
.•
Time
I
0
3
6
9
12 15 18 21 24
!
The small I hour gap in the bar graph represents the 24th hour. The
gap is provided to ease the readability of the bar graph for the present
time. The dashed line extending horizontally from the 4 represents the
current HDOP Limit Alarm, which is set in CFGPositioll. The current
HOOP and VOOP values are given in the upper window.
GPS5 - GPS Debug Screen
This screen is useful during satellite acquisition. It can present some
important clues as to why the MX42 I GPS smart antenna is not work-
ing properly.
16
4154847 6965
22 -1
14 1091
25
2
14 6180
29
3 154847 4421
14
4 154847
930
15
4 154847 1001
Core version 1.00J
GPS Offsel
11
Oscillalor
3444
GPS Week
883
Position:
33.80854 -118.35039
-5.0
Pos
Mode:
2D
GPS
The first 6 rows of data represent.GPS channel status. There are 4
columns of data for each channel:
Version 7.5
787
Advertisement
Table of Contents
