12 Antennas Jammer 20 Meters - DCS / 3G 300W Prison Jammer Cellular Signal Jammer For Detention Houses

DCS / 3G 300W Prison Jammer Cellular Signal Jammer For Detention Houses
DCS / 3G 300W Prison Jammer Cellular Signal Jammer For Detention Houses


300W High Power  prison  Jammer For Military / police,with high gain antenna 




Equipped with special high gain directional planar antenna or fiberglass omni-directional whip antenna, the jammer can effective block  CDMA/GSM/DCS /3G/ LTE/WIMAX .


Use the overseas advanced chip and technology . With independent modular design, it keeps high operation efficiency, and avoid mutual interference.


50 watts per band, total RF power 300 watts, also with power adjustable switches to control the radius range. It is suitable for prisons, detention houses, military bases, large oil fields and all other outdoor places where need the signal to block.






Output interface

Shield band of frequency

RF output powe

Output power/channel


851 - 894 MHz




925 -960MHz




1805 - 1920 MHz




2110 - 2170 MHz




2300 - 2390 MHZ




2620-2690 MHZ



Power supply: AC220V   Shielding area: 200-800M @ according to signal density of mobile network

Power consumption: 1500W  Weight:30Kg  Size(length × wind × high):460×390×260mm

Humidity: 30%-95%                   Running Temperature: -20 to +55 Celsius Degree























Competitive Advantage:


1.with good cooling system, can operate for long time.

2.Using digital interference technology, overall effective suppression of target spectrum.

3.independent module design. Each module can separate switch,disassemble. So it is convenient for maintenance and update.

4. Perfect Alarm System, fully protected circuit in case of disconnection of antennas.



1. To protect the the owner's benefits by cutting off the mobile phone signal
2 .For the needs of the army and military
3. For the guard place, prison use
4. For big party concourse
5 .For the leaders security use



12 Antennas Jammer 20 Meters

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4G LTE Blocker 20 Meters 7475 6124 7240 8902 2862
mifi4620le 6141 6903 3774 5611 636
12 Bands Jamming factory 8721 2522 8943 4315 799
120hz tv 7273 1314 6467 7843 8784
12 Bands Block 20 Meters 2510 3372 5311 4458 8279
12 Bands 5G Block 1946 6244 6277 4785 7361
14 Antennas Blocker 20 Meters 7433 5929 6312 5226 1883
12 Bands Block factory 881 7936 4643 7411 6105
portable 20m antenna 3965 6576 3645 5191 5652

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