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400W Prison Signal Jammer

400W Prison Signal Jammer

Model: ATJ4-400-1

Product Description

The 400W Mobile Signal Jammer can help to block the mobile signals for any area that are confronted with cellular communication problems: for example, loud incoming call rings, loud telephone conversations, secret leaking and bomb explosion through Mobiles, electromagnetic radiation to gas station, chemical material warehouse and hospital equipments. This product is suitable in executive offices, board meetings, conferences, seminars, libraries, cinemas, religious places, public transport, concert halls, restaurants and educational institutions, Prisons, etc.

Mobile Signal Jammer transmits strong power radio signals to cut-off communications between Mobileand cellular base-stations. It does not interfere with any communications other than cellular within the defined regulated zone.

Upon activating Mobile Signal Jammer, all idle phones will indicate “NO SERVICE”. Incoming calls are blocked as if the cellular phone is OFF. When Mobile Signal Jammer is turned off, all cellular phones will automatically re-establish communications and provide full service.


1. Aluminum-alloy casing with IP65 protection has high resistance to dust, water and corroding.

2. Special technology to prevent interference between each frequency band.

3. Only interfere downlink frequency of mobile system,without disturb normally working of Base Stations.

4. Broadband segment coverage jamming all wireless signals: 2G, 3G, 4G, WiFi, Bluetooth and GPS.

5. Each frequency band controlled by independent RF ON/OFF switches.

6. High performance heat sink, to ensure long-term use of the equipment.

7. Easy operation and installation.


Prisons and other large sensitive locations such as military or government buildings, etc.

Technical Specification

Output PortCellular 850MHz
PCS 1900MHz
GPS 1600MHz
Shield Band of Frequency869~894MHz
Output Power850MHz1900MHz2100MHz1600MHz
Total RF Output Power


Power Adjustable5-class of power adjustable on each band independently
Power SupplyDC-48V
Running Temperature(-20 to +55) Celsius Degree
Power Consumption1400W
MTBF50,000 Hours
Dimensions580×430×270 mm
Accessories4 pcs jumpers and 4 ports antenna needed

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