14 Bands Cell Phone & RF Jammer for School Class Room

Model No.:JAM14


This 14 bands jammer support jamming 135mhz to 2655mhz, effect range up to 20 meters(depend on network signal status), it's cheap solution to install the device in vehicle to protect your car not be in dangerous of road bomb, it cover all low frequencies of all remote control,also blocking GSM,CDMA,3G,4G network signals,suit for gas station,school,church,bus and any important place to keep in secure.


This full spectrum signal jammer is with 14 channels. RF output power of each channel   is no less than 1 watt, effective shielding any cheating signal.And one important thing is :the antenna is hidden inside,cut all the signals but not easy be found where the jammer is.
The jammer adopts DC 19 power supply. It is equipped with a precision voltage regulator circuit, even if the voltage fluctuation is changeable, it also won't affect the normal work.
Host cooling structure of shell is by professional design. It can endure high temperature environment, by transferring heat quickly to the heat exchange surface , avoid heat  local  accumulation.
Two mute fans instant remove the power amplifier heat, to ensure the stability of the host long continuous operation.
it is suitable for use in school examination rooms, prisons, clubhouses and government departments.

Jamming frequencies:
150M: 135 - 200MHz 
250M: 200 - 300MHz 
350M: 300 - 400MHz
450M: 400 - 500MHz 
550M: 500 - 600MHz 
650M: 600 - 700MHz 
750M: 700 - 800MHz 
CDMA: 851 - 894MHz
GSM:  925 - 960MHz
DCS:  1805 - 1880MHz
PCS   1930 - 1990MHz
3G:   2110 - 2170MHz
WiFi: 2400 - 2500MHz
4G:   725 - 770MHz
4G:   2620 - 2690MHz


Output port


Average out-

putting power

Channel out-

putting power


135-200 MHz




200-300 MHz




300-400 MHz




400-500 MHz




500-600 MHz




600-700 MHz




700-800 MHz




851-894 MHZ

30dBm 3dBm/30KHz(min)
GSM 925-960 MHZ 30dBm 3dBm/30KHz(min)
DCS 1805-1990 MHZ 30dBm 3dBm/30KHz(min)
3G 2110-2170 MHZ 30dBm 3dBm/30KHz(min)
WIMAX 2300-2400 MHZ 30dBm 3dBm/30KHz(min)
WIFI 2400-2500 MHZ 30dBm 3dBm/30KHz(min)
4G 2620-2690 MHZ 30dBm 3dBm/30KHz(min)

Power supply: AC adapter   (AC220V-DC19V)    Weight :3.5kg

Semidiameter of interception:2m-50m(depend on site signal strength and environment condition)

Working Hours:Continuously more  than 24hours  Power consumption :80watts

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

1 x Bomb Jammer
14 x Antennas
1 x Power Adapter

Design of soft-start circuit, this function can maintain the stable operation condition, avoid mechanical switch to produce lighter phenomenon.
with good cooling system, can operate for long time.
It is a high-tech product made by our company .it adopts  foreign advanced technologyand imported components to ensure the quantity and stability.
Effectively making subsections of frequency spectrums, just interfering downlink and causing no interception of base station
Perfect Alarm System, fully protected circuit in case of disconnection of antennas.
this jammer is with 14 bands ,can block all mobile signal and radio signal.
the antenna could be designed inside or expose to the air!
1. Conference room, auditoriums, law court, library, exam room, school, cinema, theater, museum,hospital etc.
2. Places where using mobile phones is prohibited such as Service Station,Security Services,Military Units, Border Patrol and Drug Enforcement,Customs, etc.

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