G-858BP Backpack Mag Operators Manual
On the chart, coordinates are in units of marks. For example, a y-value of 3.5 indicates half way
in between mark 3 and mark 4.
Chapter 6: Mapped Survey.
Introduction
Mapped survey allows you to better specify and visualize the survey area than simple survey, and
to move around within the area in a non-continuous fashion. Using the arrow keys, you may position the
cursor anywhere within the map, and acquire data. Default cursor movements are programmed into the
unit, so if you follow a normal serpentine path across the survey area, you may simply press the MARK
and END LINE keys as if you were doing a simple survey.
Mapped mode allows you to
• Define a rectangular survey area with pre-defined fiducial, or mark, points
on a regular grid.
• Take data in a uni-directional, or bi-directional default pattern.
• Move to any arbitrary position within the survey area to take data.
• Leave gaps in the survey where positions are inaccessible.
• Observe on-screen where all data points have been logged.
Setting up the survey
From the main menu, select MAPPED SURVEY.
--- Mapped Survey Main Menu ---
Data Set Number < 2 >
MAG EMPTY
Survey Mode < CONTINUOUS >
With [ 0.2 ] S cycle time
DEFINE MAP
19:07:13 04/24/03 Memory Free 93.3%
Mapped Survey Main Menu
To start a new data set, press the right or left arrow keys until an empty data set is indicated. The
Survey Mode may be set to continuous or discrete. In discrete mode, a reading will be taken only upon the
operator pressing the MARK or END LINE keys. In continuous mode, readings are taken at intervals
specified by the cycle time. The cycle time may be set from 0.2 to 6553.4 seconds in 0.1 second
increments. Adjust the parameters shown, if necessary, then select DEFINE MAP. This brings up the set
up display menu.
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