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10
GPS Connection
Cable Connections
A GPS/DGPS cable (item # 2950CV5) is required to
connect the EC 450 meter to a GPS unit. his cable
has a 9
-
pin male connection and a stereo pin that
connects to the meter
’
s data port. You will also need
a cable that allows the GPS unit to connect to a 9
-
pin
male serial port. If this cable doesn
’
t come standard
with your GPS unit, it should be available from the
manufacturer. This cable is generally used to upload
information from a computer to the GPS unit. These
components should be connected as shown in the
figure below.
GPS Setting
Your GPS unit must be set for NMEA 0183 input/
output messages. If the meter has trouble receiving
the GPS signal, check that it has the following set-
tings:
Data bits: 8
Stop bits: 1
Baud rate: 4800 bps
Parity: None
Timing: 1 second
GGA data string
Spectrum
GPS/DGPS
Cable
SPAD
Meter
GPS
Unit
GPS computer
interface cable
EC450
Meter