Geotech GEM5000 - Page 65

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Page 65 of 127
Operating Manual
OMGEM5KN – Iss. 5.1
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Copyright – Geotechnical Instruments (UK) Ltd
GEM5000
5) Once the operator selects a borehole ID the ‘GPS Navigation’ screen is displayed.
Navigation
6) If required select soft-key ‘Options’ to go to the ‘Navigation Options’ menu and the following screen
is displayed:
Navigation options
Key 1
Key 1 to toggle between ‘Meters’, ‘Feet’ or ‘Yards’ to define the
unit of measurement
Key 2
Key 2 to toggle between ‘Manual Scaling’ and ‘Automatic Scaling’
to locate a sample point using a satellite signal.
Key 3
Key 3 to display sample point information:
Bearing:
Direction.
UTC time:
‘Universal Time Code’ received from the satellite and displays
GMT.
Latitude:
Latitude displays as degrees, minutes, seconds and decimal
seconds. The equator is 0.
Longitude:
E (East) or W (West) displays the longitude as degrees, minutes,
seconds and decimal seconds. The Greenwich meridian defines
the zero point.
Altitude:
Altitude displays in meters, feet or yards.
Satellite:
This is the number of satellites that the system can select. Four
satellites will give reasonable position accuracy; eight or more
satellites will increase accuracy.