TeeJet Matrix Pro 840GS - Manual (Page 60)

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TUP
IMPLEMENT
FULL SCREEN
GPS
INTR
ODUC
TION
GUID
ANCE
DR
OPLE
T MONIT
OR
GPS Status Information
GPS Status displays a snapshot of the current GPS status
information.
1. Press
View Status
.
2. View data including:
◄GGA/VTG Data Rates – the number of GPS positions per
second.
◄Number of Satellites – the number of GPS satellites in view
(minimum of 4 are required for DGPS)
◄HDOP – a measure of satellite geometry strength in the
horizontal plane. A HDOP value of less than 2 is preferred.
◄PRN – the current DGPS satellite ID
◄GGA Quality – the current quality indicator of the GPS signal
(see GGA chart)
◄Receiver – the current indicator of the receiver
◄Receiver Version – the software version installed on the
receiver
◄UTM Zone – zone where currently located
3. Press
OK
to return to GPS setup screen
NOTE: If GPS is not available, all entries will be “Invalid”
Figure 7-4: GPS Status Information
GPS Status Information on Guidance Screens
GPS Status displays information regarding data rates, number of
satellites in view, and satellite quality and ID.
1. Press GPS STATUS icon :
27.00
ac
10.0
mph
Mark A
GGa rate: 5 Hz
VtG rate: 5 Hz
number of Satellites: 10
HdOP: 1
Prn: 135
GGa Quality: 2
receiver: 1
receiver Version:
UtM Zone: 12
GGA Requirements
GGA Quality required to be able to work with various types of signal
can vary. See table below for requirements.
Service Indicator Accuracy
GPS only 1 <3 m
WAAS/EGNOS/Beacon 2 <1 m
RTK 4 4 cm
Omnistar HP/XP 5 10 cm
Glide/ClearPath 9 <1 m