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The offsets are different because of the difference in location between the slant measuring point
and the vertical measuring point.
Measure the antenna height to the control point or marker edge, either the slant height or the
vertical height.
Record the antenna height, point name, and start time in the field notes.
5.2. Collect Data
See the remaining sections in this chapter for more information on collecting data.
•
Turn on the receiver.
•
Once the receiver has locked on eight or more satellites, the SAT light will turn green.
•
The red color of POS LED indicates that the receiver has not solved a position. Four or
more satellites provide optimal positioning.
•
Once the red POS LED is green, the receiver has a position and surveying can begin;
wait for green light before beginning data collection. This ensures that the receiver has
the correct date and time and is locked on to enough satellites to ensure good quality
data.
•
The process of locking on satellites normally takes less than one minute. In a new area,
under heavy tree canopy, or after resetting the receiver, it may take several minutes.
•
To begin collecting data, press and hold the Record (FN) button (for more than one
second and less than five seconds).
•
Release the Record button when the REC (recording) LED turns green. This indicates
data collection has started. The REC LED blinks each time data is saved to the internal
memory.
When finished, press, and hold the Record button until the REC LED light goes out.
To turn off the receiver, press and hold the power button until all lights go out, then release.
