background image

 

 

Page

 

6

 

 

 

 

 

 

 

SECTION

 

3

 

 

INITIAL

 

SETUP

 

 

1.

 

Remove

 

the

 

electronics

 

package

 

from

 

the

 

storage

 

case.

 

 

2.

 

Remove

 

the

 

antenna

 

assembly

 

and

 

swivel

 

mount

 

from

 

the

 

storage

 

case.

 

 

3.

 

Attach

 

the

 

swivel

 

mount

 

to

 

the

 

antenna.

 

 

A.

 

On

 

the

 

rear

 

of

 

the

 

antenna,

 

note

 

the

 

5/8"

 

male

 

thread

 

below

 

the

 

display.

  

Locate

 

the

 

two

 

V

 

shaped

 

slots.

   

Note

 

that

 

they

 

are

 

90o

 

apart

 

and

 

remember

 

where

 

they

 

are.

 

 

B.

 

Note

 

the

 

nylon

 

thumbscrew

 

on

 

the

 

swivel

 

assembly.

  

Back

 

it

 

out

 

far

 

enough

 

so

 

it

 

does

 

not

 

protrude

 

into

 

the

 

5/8"

 

female

 

thread.

 

 

C.

 

Screw

 

the

 

swivel

 

far

 

enough

 

onto

 

the

 

antenna

 

so

 

that

 

the

 

thumbscrew

 

can

 

be

 

seated

 

in

 

one

 

of

 

the

 

slots.

  

The

 

slots

 

allow

 

the

 

user

 

to

 

select

 

either

 

vertical

 

or

 

horizontal

 

polarity

 

and

 

to

 

lock

 

the

 

antenna

 

to

 

keep

 

it

 

from

 

rotating.

   

Line

 

up

 

the

 

thumbscrew

 

with

 

either

 

one

 

of

 

the

 

slots

 

and

 

tighten

 

it

 

down.

  

 

D.

 

Do

 

not

 

disassemble

 

the

 

swivel

 

with

 

the

 

thumbscrew

 

tightened.

   

It

 

must

 

be

 

loosened.

 

 

4.

 

Connect

 

a

 

set

 

of

 

coaxial

 

cables

 

to

 

the

 

antenna.

  

The

 

coaxial

 

cable

 

assembly

 

is

 

built

 

with

 

male

 

and

 

female

 

connectors

 

to

 

prevent

 

incorrect

 

connection

 

of

 

antenna

 

elements.

 

 

5.

  

Connect

 

the

 

meter

 

cable

 

to

 

the

 

electronics

 

package

 

and

 

to

 

the

 

meter

 

display

 

box

 

on

 

the

 

antenna.

  

Also

 

connect

 

the

 

coaxial

 

cables

 

to

 

the

 

electronic

 

package.

 

 

6.

 

Remove

 

the

 

extendible

 

telescoping

 

antenna

 

handle

 

from

 

the

 

storage

 

case.

  

It

 

is

 

stored

 

in

 

the

 

foam

 

padding

 

in

 

the

 

lid.

 

 

7.

 

Extend

 

the

 

handle

 

to

 

a

 

convenient

 

length,

 

usually

 

about

 

3

 

feet.

  

To

 

do

 

so,

 

loosen

 

the

 

knurled

 

lock

 

rings

 

by

 

twisting

 

them

 

to

 

the

 

right

 

and

 

slide

 

out

 

the

 

sections

 

one

 

at

 

a

 

time,

 

starting

 

with

 

the

 

bottom

 

section.

  

Do

 

not

 

pull

 

the

 

telescoping

 

sections

 

out

 

too

 

far

 

or

 

with

 

too

 

much

 

force

 

or

 

they

 

may

 

bind

 

and

 

make

 

it

 

hard

 

to

 

collapse

 

the

 

handle.

  

Tighten

 

the

 

lock

 

rings

 

firmly

 

by

 

hand.

  

Insert

 

the

 

bayonet

 

fitting

 

on

 

the

 

antenna

 

swivel

 

mount

 

into

 

the

 

socket

 

on

 

the

 

end

 

of

 

the

 

handle.

  

The

 

fitting

 

is

 

a

 

twist

 

lock

 

type,

 

and

 

will

 

click

 

into

 

place

 

when

 

secure.

   

To

 

remove,

 

push

 

down

 

and

 

twist

 

the

 

opposite

 

direction.

 

Содержание BOOMERANG NJD-5

Страница 1: ...TS COPYRIGHT 2007 INFORMATION SECURITY ASSOCIATES Rev January 8 2008 Information Security Associates LLC BOOMERANG NON LINEAR JUNCTION DETECTOR MODEL NJD 5 OPERATOR S MANUAL ISA Information Security A...

Страница 2: ...tup 6 Section 4 Operation 9 Important Notes On Full Scale Readings 10 Use of Attenuator 11 Section 5 Operational Notes and Hints 12 Phantom Returns and Interfering Signals 12 Resolving Indications of...

Страница 3: ...ped in avalanches and more commonly are seen in electronic article surveillance systems to deter shoplifting Detectors of this sort consist of a transmitter and a receiver that is tuned for instance t...

Страница 4: ...r metallic oxides These metallic oxides commonly occur in building and furniture construction and are found in furniture and other office type products like three ring binders and paper clips In this...

Страница 5: ...0 or 2745 MHz The switch marked Normal 2nd Only is used to turn off the 3rd harmonic receiver This is useful when a return needs to be evaluated in depth The audio section of the NJD 5 switches betwee...

Страница 6: ...ead of the bracket on the antenna has two slots machined into it to be used to lock the antenna in certain orientations CABLES The NJD 5 electronics package contains a transmitter and receiver These a...

Страница 7: ...strap is not recommended because it leads to rapid operator fatigue and discomfort The backpack harness allows the NJD 5 to be carried on the lower back where controls are accessible and weight is ev...

Страница 8: ...be loosened 4 Connect a set of coaxial cables to the antenna The coaxial cable assembly is built with male and female connectors to prevent incorrect connection of antenna elements 5 Connect the mete...

Страница 9: ...come on Turn the knob slightly back clockwise until the tone stops Set the Attenuator to the 9 dB setting 12 Remove the test target from its envelope Hold it between thumb and forefinger in front of t...

Страница 10: ...he short side of the antenna Try different orientations of the antenna and the target to get the strongest return signal 17 Attach the backpack style carrying strap Clip the short ends of the strap to...

Страница 11: ...le before the 3rd harmonic meter displays any return at all 4 If the non linear junction you have detected is a metal to metal contact such as a sheetrock screw in a steel stud or two dissimilar metal...

Страница 12: ...This indicates a corroded junction because of the high level of 3rd harmonic IMPORTANT NOTE ON FULL SCALE READINGS If both 2nd and 3rd harmonic displays are full scale when looking at a target the ope...

Страница 13: ...ble electronic devices They may be detected in many directions from some distance away When this is the case it may be difficult to determine what exactly the NJD 5 is detecting The solution to this d...

Страница 14: ...ng detected by the NJD 5 which appears to come from all directions and changing the direction the antenna is pointing in does not eliminate the signal This is caused by a signal from another transmitt...

Страница 15: ...ng room If it is suspected that a legitimate electronic device is the cause of the return move the device and use the NJD 5 to look from the adjoining area back into the room under investigation at th...

Страница 16: ...fices this molding is a rubber or plastic strip that can be removed and re installed If the wall has a papered surface make a slit in the paper and peel it back enough to create a small opening into t...

Страница 17: ...when the battery reaches a certain level of charge This avoids the gradual deterioration of detection ability that occurs when the battery reaches a critical level of discharge 4 Take care when connec...

Страница 18: ...full charge will be made in 6 hours Charging for more than 8 hours can overcharge the battery and shorten its useful life The BOOMERANG is designed to use its battery as the primary power source The...

Страница 19: ...nt 1 41079 Target 4 41069 Velcro Strips 1 41055 Manual 1 41075 Small Accessories Pouch 1 41080 Mono Headset w 1 4 Plug 1 41085 Poke Stick 1 41166 3 foot AC Cord 1 41164 Switching DC Power Supply Charg...

Страница 20: ...examination by Information Security Associates LLC shall be found to have been originally defective INFORMATION SECURITY ASSOCIATES LLC SHALL NOT BE LIABLE FOR LOSS OR DAMAGE CAUSED EITHER DIRECTL Y O...

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