DJA3000

Cellular Communication Jammer

Installation and Operations Manual

Series DJA3000

Description: Cellular Communication Jammer

Models: DJA3040 and DJA3120

Series DJA3000 – up to 4 Bands

Thank you for choosing the Series DJA3000 Cellular Communications Jammer.

The Series DJA3000 consists of several models of medium to high power Cellular

Jammers. The model DJA3040 provides up to 4 frequency bands, each with 40W and total

output power of 160W. The model DJA3120 provides up to 4 frequency bands, each with

120W and total output power of 480W.

In order to ensure that you are familiar with the operations of the DJA3000 Jammer,

this manual provides details which includes introduction of product, warning notices,

installation and operation guidelines and system settings.

Once Jammer is switched on, user should maintain a

minimum distance of 4 meters between body and antenna.

PREFACE

This manual covers installation and operating instructions of DJA3000. Please read

it carefully before start of operation.

� Introduction

DJA3000 High power cellular jammer is a white noise transmitter, which prevents

communications between mobile phones and cellular base stations.

� Safety Guidelines

Please read further before using the unit. Failure to comply with these guidelines

may result in reduced product performance. In case of concerns, please consult

manufacturer or re-seller.

� Handling & Transportation

As a result of its heavy weight, please take particular care while handling the unit.

Always place it on a stable horizontal surface to prevent sliding.

� Safety Distance

When the unit is on, almost all RF power radiates from the area perpendicular to its

top cover.

Do not activate the unit for continuous operation if

there are persons or obstacles at a distance of less

than four (4) meters (open space) from antennas.

� Connecting Antennae

Antennae must be installed before turning on power. Under no circumstances

should you operate the unit without antennas fully connected.

� Open Panel

Do not open any of the unit panels unless instructed by manufacturer.

� Environmental Conditions and Usage

The unit has been designed to outdoor use, however it is recommended not to

expose it to direct sunlight, high temperature or other extreme weather conditions.

� Fuel / Chemicals

The unit may operate near refueling points to minimize hazards of cellular phones

transmission. Do not activate the system near fuels of chemicals without the

approval of experienced personnel.

� User’s Property

It may be illegal to interface with communications equipment outside user

premises.

� Medical Equipment

Do not activate the unit in hospitals, clinics or near operating medical equipment

unless specifically approved for usage by local authorities.

� Aircraft

Do not activate the system on board an aircraft without specific approval of Aviation

Authorities.

Table of Contents

PREFACE 3

Environmental Conditions and Usage 4

INTRODUCTION 6

Front, Top and Side view 6

DJA3000 Control Functions 6

OUTPUT POWER CONTROLS 7

CDMA, GSM, 3G, DCS Dip Switch Settings 7

FEATURES 8

Technical specifications 8

Technical characteristics 8

SYSTEM COMPONENTS 9

Connectors 9

Remote Control Unit 9

Antennae and Cables 9

Antennae Output Description and Characteristics 9

CHARACTERISTICS OF INTERFERENCE 10

Theoretical Principles 10

System Block Diagram 10

CALCULATING JAMMING RADIUS COVERAGE 11

Testing Magnetic Field 11

TYPICAL TEST EQUIPMENT 12

Testing Base Station Carrier Output Power 12

How to Use Field Strength Software 13

13

START OF OPERATIONS 14

Unpacking the Unit 14

Connecting Components 14

Switching on jammer 14

Activate the DJA3000 Jammer 14

Switching off jammer 14

INSTALLATION 15

Installation of Antennae 15

Troubleshooting 17

Frequently Asked Questions 18

Introduction

The following photos, diagrams and information will provide the user with a better understanding

about the positions of control dip switches, functions, accessories and other jammer hardware.

Front View Top View Side View

Fig. 1.1 DJA3000 Control Functions

①①①①

④

⑤

⑤

②

③

Item Function Remark

1 RF connectors Connects unit with antennae

2 Operating Status LED Power Supply ON/OFF indicator light

3 VSWR Alarm LEDs for each of four Bands

CDMA, 3G, GSM & DCS

When the antenna is not connected to

jammer or operating power is at minimum,

the alarm indicator light is turned ON

4 Output Power Control Dip Switches See Following Page Figure 2

5

Upper Power Switch for CDMA & 3G

Lower Power Switch for GSM & DCS Turns equipment ON/OFF

Output Power Controls There are four groups of dip switches which are used to control RF output power of the DJA3000 Jammer corresponding to but not limited to the Cellular Technology transmission listed: CDMA - 851/869MHz ~ 894MHz GSM - 925/936MHz ~ 965MHz DCS - 1800MHz ~ 1990MHz 3G - 2110MHz ~ 2170MHz Each set of dip switches has an output power of 31dB and is adjustable in steps of 1dB. Note: Dip Switch factory default settings are set for maximum output power - all 5 are in “off” (down) position. As user turns dip switch to “on” position (up), output power is reduced – Fig 1.2.

Fig. 1.2

Dip Switch Position Power Decrease

1=ON; 0=OFF in dBm

00000 0

00001 1

00010 2

00011 3

00100 4

00101 5

00110 6

00111 7

01000 8

01001 9

01010 10

01011 11

01100 12

01101 13

01110 14

01111 15

10000 16

10001 17

10010 18

10011 19

10100 20

10101 21

10110 22

10111 23

11000 24

11001 25

11010 26

11011 27

11100 28

11101 29

11110 30

11111 31

Features

Technical Specifications

Fig. 1.3

Technical Characteristics

* Cellular Communications Jammer

* Blocks iDen, TDMA, CDMA, GSM, UMTS,

DCS, PHS, PCS, 3G, AMPS, N-AMPS, NMT, TACS

* Up to Four (4) Frequency Bands; 40W and 120W/Band

* PLL Synthesized Signal Source

* Dip Switch Controls to Attenuate Output Power

* Directional Antennas with min. 12dBi each Band

* Interferes w/Downlink Base Station Frequencies

* Slow Start-up Circuitry for Long Term Reliability

* Over Temperature and VSWR Protection

* Status/Alarm LEDs & Monitoring Client Software

* Fan Cooled Rack Enclosure with Casters

* 100-240VAC Power Supply Source

.

Jammer Parameters DSJ3040 DSJ3120

Output Power per Band 40W (160W Total) 120W (480W Total)

Signal Source PLL Synthesized

Temperature and VSWR Over Protection For Each Band

Power Supply 100-240VAC

Frequency Modules Up to Four (4) Bands

Band A (in Model Number) 851/869 MHz ~ 894 MHz

Band B (in Model Number) 925/936 MHz ~ 965 MHz

Band C (in Model Number) 1800 MHz ~ 1990 MHz

Band D (in Model Number) 2110 MHz ~ 2170 MHz

Interface Standards iDen, TDMA, CDMA, GSM, UMTS, DCS, PHS, PCS, 3G, AMPS, N-AMPS, NMT, TACS

Antennas Directional Type

Jamming Radius 150m 250-500m

Output Power 851/869-894 MHz 47dBm 51dBm

Output Power 925/936-965 MHz 47dBm 51dBm

Output Power 1800-1990 MHz 46dBm 51dBm

Output Power 2110-2170 MHz 46dBm 51dBm

Dip Switch Controls/Band RF Output Power in 1dB Steps (Fig. 1.2)

System Components

System components consist of remote control unit, main enclosure with shield package, AC/DC converter,

power cable and antennae cables. The next paragraph provides a brief description of all components.

Remote Control Unit

The remote control unit may power the unit ON/OFF.

Connectors

There are Four (4) RF (N) connectors, which are used to

connect two (2) directional antennae and one (1) power

supply input connector for 100-240VAC.

Antennae Cables

Two (2) 10 meter antennae cables are included.

Antennae

There are two (2) directional antennae each with two sockets. Use any one antenna

for two of the frequency bands below:

Band of

frequency：

CDMA

851/869MHz~894MHz

GSM

925/936MHz~965MHz

DCS

1800MHz~1990MHz

3G

2110MHz~2170MHz

Gain： 12dBi 12dBi 15dBi 15dBi

Half power

beam：

65°H-plane

VSWR： ≤1.5

Front to back

ratio：

25 dB

Magnetization

type：

Vertical

L ×W × H： 1200×280×100 mm

Connector

type：

N

Installation

pillar：

φ50-φ114mm

Fig. 1.4

Fig 1.5

Characteristics of Interference

Theoretical Principles

Wireless communication is effectively completed by ensuring greater carrier signal density to a

certain noise density ratio during communication between Cell Tower Base Station and Mobile

Telephone. An identical frequency distortion signal is used to increase the ratio of noise frequency

(NF) signal to carrier frequency (CF) signal for shutting off the communication between the base

station and mobile phone.

The output power of jammer is provided. The shield radius in the application of free space is

confirmed according to the receiving signal lever from base station and free space attenuation in

pass through. The formula given below confirms the shielding radius in a comparison table of

distance vs. pass through. It is based on carrier receiving power from base station, output power of

jammer as well as gain of antenna.

System Block diagram

Calculating Jamming Radius Coverage

Fig 2.0

In The Formula: Gain of antenna “G” less attenuation (loss) in transmission signal “L1” less attenuation

due to topography and weather “L2” equals average output of Jammer = “W”

G – L1 – L2 = W

If for example, carrier output power “X” is measured at -75dB and DJA3000 Jammer output power “W” is

-26dB after subtracting attenuation of equipment, cables and environmental obstacles, then we calculate:

Jammer output W (-26dB) less Carrier output X - (-75dB) = Y 49dB

The resulting number is used in a formula: Y/6=Z or 49/6=8.2 or rounded off to 8

Radius is calculated as 1 x 28=Radius in meters or 256m

So the assumption is that the working radius coverage of the Jammer is in the order of 256 meters.

G: Gain of Jammer Antenna 12dB

L1: Attenuation (loss) in pass through 32dB

L2: Attenuation (loss) based on topography and weather 6dB

W: Average output power of jammer -26dB

X: Average Carrier output power of base station -75dB

Shield Radius in meters Testing magnetic field

Maximum receiving signal level

from base station:

RxLev-50dBm, RxLev-55dBm

RxLev-60dBm, RxLev-65dBm

RxLev-70dBm

Fig 2.1

Typical Test Equipment

RF Spectrum Field Analyzer

Magnetic Field Meter

Mobile Phones

The Advantest U4941 RF Field Analyzer on left side of Fig 2.2 may be used to measure Cell Tower signal

strength. User may also measure with Nokia 8250 (GSM) or Motorola C510 (CDMA) cell phones. To see the

signal parameter Press*# then press the "OK" key 3 times.

Testing Base Station Carrier Output Power

Fig 2.2

1. When your mobile is in Network monitoring state, your mobile will be show following:

2. When your mobile phone is waiting status, it will be show following:

RxL: shows receive signal strength (unit: dBm), range is -110~0; when it is ≤-100, nothing appears.

Rxpwr: shows power level of mobile phone when user is calling; range is 0 ~19. It is showing "XXX"

when it is waiting status.

TS: Time Slot, TS=0 ~ 7, TS 0 is use to BCCH.

RQ: Rx Quality, RQ=0 ~ 7.the smaller RQ, the better Rx Quality. It is showing "X" When your mobile

phone is waiting status.

TA: Time Advance. It is showing the distance between mobile phone and base station. The formula is TA

× 500 = “X” meters

How to use field strength test software

The following information is provided in calculating field strength test software:

Step 1: prepare cable line, Nokia 8250, software and computer;

Step 2: Connect Nokia 8250 with computer using cable;

Step 3: Install software in your computer;

Step 4: When installation is completed, there will be open a window, click "Net monitor" if

the choice is execute mode or if data display mode, then select "data display mode")

Step 5: disconnect cable between Nokia 8250 and computer. It will show some modes in

your Nokia 8250.

Step 6: Test field strength.

Step 7: Please record the result which shows on Nokia device; then send email with data to

Dante Security technical support at support@dantesecurity.net. A returned email will be

provided with needed information on field strength of installation.

Start of Operations

Unpacking the Unit

Carefully open the package and keep for any needed future shipment. Check whether components

appear to be in good condition. Should any damage be apparent, please contact authorized reseller.

Installation

Connecting Components

In order to connect system components, RF cables are used to link the equipment with antennae -

see top view - installed on the N connectors on top of DJA3000. After connecting the RF Cables

between unit and antennae, a power cable plugs unit into an electrical outlet.

Note: be sure to connect all the antennae first before the power supply is switch on.

Power Source

The system includes an auto ranging 100-240VAC power input source. Connect power cable to the

unit and main supply. There is an internal fuse with a value of 6.3A.

Switching on Jammer

After RF and power cables have been installed, turn on the unit by using two (2) ON/OFF switches

located on front panel or by using remote control buttons. When the LED lights on the front panels

turn green the unit has been activated. Jammer factory default is set for maximum output power.

Remote Control

Remote Control unit may be used to turn ON/OFF DJA3000 Jammer. Please refer to Remote-Control

connector.

Activate the DJA3000 Jammer

The jamming capability of the DLA3000 unit takes effect immediately. There is a wait time of 40-60

seconds before mobile phone screen displays "NO SERVICE".

Switching off Jammer

To turn off the DJA3000, switch the ON/OFF switch to off position on jammer or via remote control

unit; the jammer ceases to function.

Installation of Antennae

The two (2) directional antennae should be installed at the edge of the shielding area as shown below.

Note: To improve jamming coverage efficiency, install the unit with antennas in vertical position.

Note:

Be sure to connect all the antennae first before the power supply is switch on. Please do not take off

antennae when the machine is working. Antenna shall be used vertical to the ground, working more

efficiently. Please do not install unit in areas of moisture, heat, high voltage and high magnetism. If the

jammer does not turn on please contact the distributor or reseller.

300 - 4

00 m

ete

rs

150 - 200 meters

Fig. 2.5

Warnings

1. Please ensure not to cover air vent entrances and exits.

2. Should DLA3000 Jammer require that fuses be replaced, always use the same value

6.3A or unit may be damaged.

3. Unauthorized tampering of unit will void warranty repair or replacement of product.

Fig. 2.6

No. Part Description Specifications Qty Notes

1 Bracket Mounting Clamp 4 pcs

2 Bracket for Tilt Adjuster H90mm 1 pc

3 Mounting Bracket H60mm 3 pcs

4 Tilt Adjuster Frame 430 x 40mm 2 pcs

5 Mounting Bolts M10 x 160mm 4 pcs

w/M10nuts, flat & lock

washers 8 pcs each

6 Machine Screws M10 x 25mm 10pcs

w/M10 nuts, flat & lock

washers 10 pcs each

Note: Mast Diameter 50-114mm

Installation Instructions

1. Install bracket to the

antenna using the M10 x

25mm machine screws, please

note to adjust the tilt frame

according to the application -

see drawing on left.

2. Mounting the antenna on

mast use clamp and M10 x

160mm mounting bolts

Installation of Antennae

Troubleshooting

Problem Possible Solution

After unit is switched

on, power LED does not

light up

1. Please check cable connection to power source

2. Try to operate jammer using remote control unit

After Jammer is

switched on, power LED

lights up, but unit does

not interfere on one

frequency band

1. Please ensure that antennae are well connected with respective

cables. Check connections at N connectors on jammer.

2. Try again and note that no obstacles stand between antennae

and area that requires interference.

After Jammer is

switched on LED lights

up but unit does not

interfere with any of the

frequency bands

Repeat steps above

Jammer can only be

switched on from main

switch

1. Please ensure that remote control unit is well connected.

2. Disconnect remote control unit and open its cover. Check the

fuse and replace if necessary

Frequently Asked Question (FAQ)

Q: What affects the performance of the Cellular Jammer?

A: The surroundings such as buildings, hills, etc. Additionally, the closer the Cell Tower Base Station is, the

lower the output power requirement for the Jammer to effectively block the signal.

Will jammer interfere with other electronic equipment from operating in normal condition?

A: No. Because the electromagnetic signals generated by jammer are employed in frequency bands

regulated by the government and interfere only on cell phone network communications.

Q: Is jammer harmful to the human body and cell phone?

A: The intensity of electromagnetic signal transmitted by jammer is in compliance with the national

standard of environmental electromagnetic wave health. The signal emitted by the jammer is relatively

small and does no harm to the human body according to test results. This jammer equipment only

interferes with the receiving capability of cell phones. It makes the normal connection between cell phone

and base station impossible. Therefore, no damage will occur on the cell phone itself.

Q: Is there any difference of distance between using jammer indoor and outdoor?

A: Yes. Generally speaking, the outdoor signal is greater than the indoor signal. The shielding effect of

jammer is reduced outdoors. In any installation, whether indoor or outdoor, the effective distance of

interference depends entirely on the surrounding area, including the distance between different base

stations, positions of installation etc.

Q: Does the jammer have the same effect to GSM cell phones and CDMA cell phones?

A: CDMA Technology provides greater capacity of resisting to signal interference than GSM technology. So

the interference effect of Jammer on GSM cell phone is greater than on CDMA cell phone.

Q: How is the operation of Jammer affected by temperature of enclosure after working for an

extended period of time? Does the rise in temperature cause damage to the equipment?

A: The Series DLA3000 Jammer design is based on conductivity of heat via heat sink attached to the metal

enclosure. The result provides user with equipment that stays in excellent working condition for long time.

For additional information, please visit our web site

www.dantesecurity.net

For Technical Assistance write to:

support@dantesecurity.net