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Hemisphere GPS
RTK Rover Workflow for Crescent Based Receivers p/n 874-0004-000
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RTK Rover Workflow for Crescent Based
Receivers
Part Number 874-0004-000 Released August 27, 2010
I
ʼ
M AN EXPERT:
•
Power on
•
Provide corrections to any receiver port in DFX format.
•
The
GPGGA
and
GPGST
messages will show the RTK rover solution and accuracy,
respectively
I
ʼ
M A NOVICE:
A.
Apply power to the receiver
B.
Check
$JAPP
to ensure
RTK
application is running
C.
Check
$JK
to ensure the subscription code is ready to work as an RTK rover (
3008
or
Higher)
D.
Ensure the corrections are being received on a receiver port in either DFX format at the
correct baud rate
E.
Monitor the quality indicator, correction age, and reference station ID number in the
GPGGA
message for performance. Monitor the standard deviations of latitude, longitude,
and height from the
GPGST
message to determine positioning accuracy.
WALK ME THROUGH IT SLOWLY:
1.
Place the GPS antenna outside in an open area where it will be able to track as many
satellites as possible.
2.
Connect the antenna to the antenna cable, and then connect the cable to the receiver.
3.
Apply power to the receiver.
4.
Connect your PC COM port to the receiver
ʼ
s port. Port A will be used in this workflow.
5.
Select software to communicate with the Crescent based receiver. SLXmonDF or
HyperTerminal can be used, along with other choices. If you have trouble connecting,
ensure you are selecting the right port and baud rate, and ensure the correct cables are
connected properly.
6.
Once connected, from a screen that allows commands to be sent to the receiver, send a
$JAPP
command. The response may be like this: