Campbell Scientific GPS16X-HVS GPS Receiver User Manual

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GPS16X-HVS GPS Receiver

the same as used to communicate with the datalogger. Terminal emulation

software is common. Hyperterm is supplied as part of Windows ™ and works.

Procomm ™ is another communication software package that works well.

Set up the software for the correct serial port, 38.4 kbps, 8 data bits, 1 stop bit

and no parity. Flow control should be none. Using the SC110 cable, connect

the GPS16X-HVS to the computer serial port. Power up the GPS16X-HVS.

The GPS antenna should have a clear view of the sky. Don’t expect the GPS

antenna to work indoors. The $GPGGA and GPRMC strings should be

displayed once a second. Make sure the $GPGGA string is showing a valid

GPS fix. A valid GPS fix will display time, position and have a GPS quality

number greater than zero.

SC110 Cable Connections

GPS16X Receiver

SC110/Sockets or DB9/Sockets to Pigtails

White

Pin 2

Black and Yellow

Pin 5 (shares power ground)

6.2 NMEAStrings Variable Populated, but Clock Not Setting

Look at the GPSReady variable. It will increment from 0 to 10 when the

datalogger has received good GPRMC strings and a synchronized PPS signal.

Once GPSReady reaches 10, the datalogger will begin to use GPS time for

clock setting. The 12th value populated in GPSArray indicates elapsed time

since a GPRMC string was received and should not exceed 1. If the GPRMC

string is being received and GPSReady remains at zero, the PPS signal is not

being received by the datalogger.

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