Application

OVJA-720M200 is applicable to open field, prison, school, force, factory, etc.

Open field: 1 or 2 jammers are needed.

Prison: Generally, 4 to 10 jammers are needed, depending on the height and layout of buildings, the size of supervision area and distance of base station.  

School: The quantity of jammers depends on the quantity and layout of teaching buildings or dormitory buildings and the distance of base station.

Technical Parameters

Jamming Range: Radius of 200~500 meters (-75dBm, depending on the distance of base station in an open field)

Transmission Power: Integrated equipment ≥ 250W, 50~75W per channel

Types of Mobile Phone Signals:4G,3G(TD/WCDMA/CDMA2000) GSM, CDMA, DCS

Other Signal Types: GPS, Wi-Fi, Bluetooth, etc.

Output Channel: 5 output channels; each can regulate the power separately (gear regulation).

Features

Excellent performance of jamming: All 2G/3G/4G signals can be jammed and jamming band can be customized.  

Five channels with fault alarm function can be switched and power-regulated separately.

Transmission power of each channel is not lower than 50W and can be regulated as needed by the field.

Directional antenna is the standard configuration but omni antenna can be installed if necessary.  

Box is double-layer and waterproof, available for outdoor installation.

Main box is made of aluminum alloy, stainless.

Powerful cooling system ensures best working state.

Good performance ensures long service life.

With ISO9001:2008 approved.

Detailed Technical Parameters

Considerations

n Jamming range is closely related to the signal strength in the field and may be affected by the system of mobile phone.

n Factors that affect jamming range include but not limited to: distance of base station, jammer’s orientation, obstacles, wall’s material quality, jammer’s installation height and mode, etc.

n Band label on each antenna must match those on the jammer. Antennas must be connected before starting up the jammer.

n Installation mode can be wall or pole and the height is recommended to be 3 to 15 meters.

n Jammer and antenna must be installed under the lightning rod.

n As a high-power jammer, OVJA-720M200 should be installed in 20 to 30 meters far away from the target building, without any obstacle between antennas and the target building.

Application in Prison

Jammer and antennas are waterproof and available for outdoor installation.

Directional antenna or Omni antenna can be chosen as needed by the field.  

Ensure that no base station is located in 300 meters around the jammer.

Can be installed on the roof, wall, or lamp pole.