(a)
To pinpoint the location of the
sonde center the cylinder icon
that represents the sonde under
the crosshair on the screen The
user will notice that as the
cylinder is centered the
centering circle will constrict
The tighter this centering circle
the more positive the location
of the sonde (see next step)
The user will also notice that
the receiver will report the
depth and depth accuracy in the upper right corner of the screen
(d) There is one condition that the user should be aware of when
centering the sonde in the constricting circle If the icon is a flat
rectangle (or nearly so) the user should swing the pointer along
the line that cuts through the middle of the icon Move the pointer
along this line searching for the maximum ANR and/or the
minimum depth report When the receiver is so positioned it will
be pointing directly at the sonde
(e) When reading the depth hold the receiver steady After a few
moments the depth report will stabilize to the most accurate
reading
For more information about other methods that can be used when
attempting to locate a sonde please consult Appendix A “Advanced Locating
Techniques”
