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4 Antennas GSM 3G Full Band Smartphone Jammer with Optional Jamming Range

Categories Cell Phone Signal Jammer
Brand Name: GREETWIN
Model Number: GW-JB4A
Certification: SGS, ISO9001
Place of Origin: Shenzhen,China
MOQ: 1pcs
Price: Negotiable
Payment Terms: T/T, L/C, Western Union, MoneyGram
Supply Ability: 5000pcs per Month
Delivery Time: 3 Working Days After Received Payment
Packaging Details: Carton with PE Foam
Product Name:: GSM DCS 3G Cell Phone Jammer
Application: Home, Class, Conference Room, Office
Working Time:: Long time 24 Hours
Antenna: 4 pcs external omni antennas
Operating Humidity:: 5% - 95%
Jamming range: 2 - 40meters , depend on local signal strength
Output Power: 10W
Weight: 3.0KG
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4 Antennas GSM 3G Full Band Smartphone Jammer with Optional Jamming Range


4 Antennas GSM 3G Full Band Smartphone Jammer with Optional Jamming Range


Signal Jammer Description:


Due to the highly development of the technology, a lot of advanced jammer products have come into the market and also there are various types of adjustable output power jammers in the markets and here this 4 Bands Powerful Desktop adjustable output power Signal Jammer GW-JB4A being introduced here is the newly type and owns powerful ability and it can work continuously.

The Signal Jammer GW-JB4A has 4 antennas supporting 4 frequencies of GSM, DCS, WCDMA, PCS, WiFi, GPS and any other frequencies can be customized.


Signal Jammer Features:

1. Good cooling system,Jamming range up to 40m.

2. Working 24 hours continuously.

3. Turn on/off by remote control

4. Stable capability, cost-effective choice

5. Output power 10w , make more efficient jamming.

6. Heat sink case makes the jammer work in a more stable and cool situation.

7. Four channels with different frequency range,

or customize other cellular standard in the world.

Such as Walkie Talkie,450MHz,GPRS,iDEN,GPS, Galileo,Compass,Glonass,UMTS,WiFi,AWS,LTE 4G.

8. Transmit noise signal to cut off all communication between cell phone and Base station.

The jammed cell phone will show “No Service” .

will not be able to receive or dial outgoing calls.


Signal Jammer Application:

Theatres, offices,Meeting Room, Oil and Gas Storage Facilities and fields, Hospitals,
Recording Studios, Banks, Contract Tendering Rooms, Churches, Conference
Rooms, Classrooms, Testing Facilities, Security Services, Military, Secret
Services, Libraries, Museums, Courts, Border Patrol and Drug Enforcement,

Customs, House, mosques, Libraries, Prisons, etc.

Signal Jammer Specification.


Only interfere downlink frequency of mobile system, can’t affect normal operation of Base Station.


GW-JB is a sophisticated high power desktop cellular phone jammer.

It can be used for all the worldwide network frequency system.

It is the best choice for Conference rooms, and offices.


Output portFrequencyAverage output powerOutput power
CDMA800851-894MHz35dBm3W
GSM900925-960MHz35dBm3W

DCS1800/ PCS1900


1805-1880MHz/

1930-1990MHz

33dBm2W
3G2110-2170MHz33dBm2W
GPS (Optional)1570-1580MHz33dBm2W
WIFI (Optional)2400-2500MHz33dBm2W
Total Output Power10 Watt
Power SupplyAC110-240V,DC 5V/8A
Power consumption30 Watt
Weight3.0kg
Size210*170*50mm
Running temperature-10℃ to +55℃
Humidity5% - 95%
Complete accessoriesFour omni-directional antennas, Power cable, Remote control, Fixed Mount
Jamming range(Radius)2 - 40meters , depend on local signal strength

This device pack in a strong safety box with PE foam inside.

It gives top-class protection to the terminator device, and allows you to carry it easily like a big suitcase.


Whip Antenna Specifications


Frequency RangeThe same as the jammer channel
Impedance50 Ohm
VSWR<1.5
Gain2-3dBi
PolarizationVertical
Radiation DirectionOmni
Max. Power50 W
ConnectorSMA
ColorBlack

Quality 4 Antennas GSM 3G Full Band Smartphone Jammer with Optional Jamming Range for sale
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