GMT Super Pulse
Owner’s Manual
GMT Super Pulse
Owner’s Manual
Assembly
1. Remove all parts from the shipping carton and check assem-
bly diagram to ensure all parts are present.
2. Install black rubber washers on fiber clevis/lower rod, insert
clevis lower rod onto loop ears. Use only nonmetallic wash-
ers, fiber bolt, and fiber thumb nut to secure loop/search coil
to clevis/lower fiber rod.
3. Unlock “S” rod cam-lock and insert clevis/lower rod into
curved “S” rod so that stainless steel spring clip buttons line
up and lock into one of the adjustment holes in the curved
“S” rod. Turn cam-lock to secure. The second or third
adjustment holes are suitable for average sized adults.
4. Wind the loop cable around the rod assembly, first revolu-
tion over the top of the rod, all the way to the top of the
curved “S” rod, about five revolutions. Use the black cable
retainers, one near the loop, and one near the top of the
curved “S” rod, to hold the loop cable in place. Plug the
cable into the jack on the front of the control box.
Search coil
Lower rod
Arm cup
Battery door
Clevis
Rubber
washers (2),
fiber bolt
Cam lock
response. The following illustration shows improper and proper
coil sweep motion.
Dealing with Noise
Because PI detectors have wideband receivers they are
more prone to noise and interference than narrowband VLF
designs. There are a few strategies for dealing with noise. First,
use the Frequency Offset control to slightly adjusts the overall
pulse rate. With the Threshold and Gain turned up to the point of
mild chatter, make very small incremental adjustments to the
Frequency control to minimize the chatter.
Some sources of noise cannot be dealt with electronically,
such as electric fences. Try to identify the noise source and dis-
able it. Indoor testing is notoriously difficult to do with PI
detectors due to the overwhelming number of EMI sources. If
you cannot minimize noise with the Frequency control, then
turning down the Gain or Threshold is your best bet. Excessive
chatter will easily mask targets, plus results in audio fatigue. It
is better to trade off sensitivity for smooth audio so you can hear
the targets.
White’s metal detectors are proudly designed,
built, and tested in Sweet Home, Oregon USA
by the employees of White’s Electronics.
Page 3Page 10
(13 pages)
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