background image

GMT Super Pulse

 

Owner’s Manu

al

GMT Super Pulse

 

Ow

ner’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 ear

s. Use only nonmetallic wash-

ers, fiber bolt, and fiber thumb 

nut to s

ecur

e loo

p/sea

rch coil

to clevis/lower fiber rod.

3.

Unlock “S” rod cam-lock and 

ins

ert cle

vis/lower

 r

od into

curved “S” ro

d s

o that stainle

ss steel spring clip buttons line

up and lock into one of the ad

justme

nt holes in the

 curve

d

“S” rod. T

urn cam-lock to secure. The second or third

adjustment holes

 are suitable

 for average sized adults.

4.

W

ind the loop cable around the 

rod assembly

, first revolu-

tion over the top of the rod, al

l the way to the top of the

curved “S” rod, about five re

volutions. 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.

S

ea

rch

 co

il

Low

er

 r

od

Ar

m

 c

up

Ba

tter

y doo

r

Cl

ev

is

R

ubb

er

 

w

as

he

rs (2

),

fib

er bo

lt

Ca

m lo

ck

response. The following illustra

tion shows improper and proper

co

il s

w

ee

p motion.

Dealing with Noise

Because PI detectors have 

wideband receivers they are

more prone to noise and inte

rference than narrowband VLF

designs

. There are a fe

w strategies for deal

ing with noise. First,

us

e the 

Fre

que

ncy

 Off

set

 

control to slightly adjusts the overall

pulse ra

te. W

ith the

 

Th

res

hold

 

and 

Gain

 

turned up to the point of

mild chatter

, make very small 

incremental adjustments to the

Fr

eque

ncy

 

con

trol to minimize the chatter

.

Some sources of noise cannot 

be dealt with electronically

,

su

ch as electric fences.

 T

ry to identify the noise so

urce and dis

-

able it. Indoor testing is notori

ously dif

ficult to do with PI

detectors due to the overwhel

ming number of EM

I sources. If

you cannot minimize noi

se with the 

Fre

quen

c

y

 control, then

turning down the 

Gain

 or 

Th

resh

old

 is your best bet. Excessive

ch

atter will easily mask tar

gets,

 plus results in audio fatigue. It

is better to trade of

f sensitivity for smooth audio so you can hear

the tar

gets

.

Wh

ite’

s meta

l detecto

rs ar

pr

oudl

desi

gned, 

bu

il

t, 

an

d tested in

 S

w

eet Home, Or

eg

on US

by the employees 

of White’

s Electr

onics

.

Wr

on

g

R

igh

t

Page

 3

Pa

ge 10

Содержание Super Pulse

Страница 1: ...ation a slight adjustment to the ground balance will cause it to go away 4 A good target will give a smooth distinctive response The tone will quickly go from soft to a sharp peak and back to soft The strength of the peak depends on the depth of the target Dig anything that gives a response like this 5 A long nail will give a good response from one direction if it is lying flat in the ground When ...

Страница 2: ...ty Back Cover Page 2 Page 11 GMT Super Pulse Specifications Operating mode Pulse Induction Pulse Frequency 2 6kHz 3kHz Pulse Delay 10 25 s variable Search modes PI Ground balanced PI Ground balance Differential delay Audio tones 1 or 2 Audio output Speaker headphones Search coil 7 5 Dual Field 12 Dual Field Weight 3 lbs 7 5 DF coil 3 5 lbs 12 DF coil Length 43 48 inches adjustable Batteries 8 AA a...

Страница 3: ... 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...

Страница 4: ...rate until the batteries drop to about 8 5 volts at which point the low battery LED will turn on Page 4 Page 9 learn their audio responses A US nickel or small gold nugget works well for a low conductive target and a US quarter makes a good high conductive target GMT Super Pulse is a motion detector so target responses depend on the motion of the coil If you hold the coil steady over a target the ...

Страница 5: ...nd to mineralization and eliminates the ability to discern conduc tivities as all targets will produce a high tone Frequency This control makes small adjust ments to the transmitter pulse rate This is used to counteract any interference which might be due to outside electro magnetic sources such as radio sta tions microwave short wave electric fences power lines lightening electri cal storms or ot...

Страница 6: ... amount and type of mineralization With the coil on the ground increase the gain until the detector exhibits chatter then back off slightly for a reasonably steady threshold tone Proper ground balancing will minimize chatter due to mineralization The Gain control is also used to turn the detector on and off Ground Balance This control is used to balance out the signal from ground mineralization Th...

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