13
ADVANCED GND BAL (MGB) TECHNIQUE
Description
When detecting extremely variable ground there is a method to prevent
wasting tim
e digging “ground noises”.
•
While swinging the coil take note of the response to determine
either rising or falling pitch.
•
If the
pitch rises
, toggle the MGB DOWN 4 counts (or UP 4
counts if the
pitch falls)
then swing over the patch again.
If the signal has diminished or has disappeared then don’t bother
digging, it’s a ground noise. Restore MGB to previous value and
continue detecting.
Notes
Tip:
A (real) Target will not be
‘balanced’ out by the +
- 4
method, even if going +-8
(or more) to determine the
status of a target
response.
Summary of Contents for QED-PL2
Page 18: ...18 2 THRESHOLD B THS B BIAS Setting range 1 99 Factory preset at 50 Notes ...
Page 34: ...34 NOTES ...
Page 35: ...35 ...
