120
GSM19 Series Magnetometers - Version 7
GEM Systems, Inc. Advanced Magnetometers
For more technical information, visit www.gemsys.ca
NOTE:
When using programmable waypoints, the Local and Rotated Grid options may
not be displayed.
If they are displayed however, remember that the waypoints are entered in UTM
and therefore, Local or Rotated systems are not coherent with the planned route.
Other survey parameters may be adjusted as normal. When ready, press
A-start
to start the survey
and take magnetic readings.
The unit will:
1.
Check GPS lock and initialize GPS if necessary.
2.
Synchronize internal clock to UTC time (time is overwritten)
3.
Perform tune-initialize for magnetic readings (if tune initialize is enabled)
4.
Display the reading menu. The GPS information is displayed along with the magnetic data. For
example, in the Mobile mode, you see:
SCREEN D25
48101.65nT
0.01 99
A - menu other keys – read 12.2
0000268 0001 0002
629229 4857218 07 - >
Where
0000268-
is the distance (in meters) along the current line (wp1 - wp2 direction in this example)
from current location to the ending waypoint (wp2 in this example)
0001 0002- are the current waypoints.
629229 4857218 are the current coordinates
07 -
is the number of satellites in view
-
>
are the lane guidance indicators