Interference And Frequency Shifting - Fisher F-PULSE Owner's Manual

Interference (Frequency Shifting)
All metal detectors operate at different frequencies. It's these
different frequencies that make certain detectors better at
detecting certain targets. The F-Pulse is designed to work with
the different frequencies of various detectors, and to enable the
user to calibrate the F-Pulse to a frequency that eliminates (or
minimizes) interference with your detector.
The factory default setting of the F-Pulse may interfere with your
metal detector, causing it or your pinpointer to beep irregularly.
A pinpointer is most
likely to interfere
with your metal
detector when
pointed into the
horizontal plane of
the searchcoil.
To minimize
interference while
probing the ground,
lay the metal
detector down
with the searchcoil
perpendicular to
the ground.
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