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4.3.5 GPS
The GPS menu can be used to check the status of the GPS receiver. Press the Get
Position button and the screen will be updated with the latest serial message from the GPS
receiver. The GGA string will show the data from the receiver. If valid GPS data is received,
then the Latitude, Longitude, Altitude and time will be displayed.
The GPS receiver can be connected internally to the unit or can be connected to the
external connection. Select the correct GPS configuration.
The DAQlink III is designed to have an external GPS receiver connected to the 4 pin connector
on the DAQlink III unit.
The GPS receiver can be connected to the 4 pin GPS connector using the PT06A-08-4P.
The normal Seismic Source GPS receiver is setup for 19,200 baud.
To operate another brand of GPS receiver, the receiver must be setup with third party software
for the following:
• RS232 serial at 4800, 9600, or 19.2 K baud
• $GPGGA and $GPRMC messages – do no enable any other message
• PPS pulse – TTL level pulse per second
Connect the GPS receiver to the 4 pin GPS receiver
4pin GPS Connector (PT06A-08-4P)
4 pin GPS Connector
A - +Battery - A
B – RS232 Receive – B
C – PPS pulse – C
D – GND - D
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