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AM FM Radio LoJack Prison Cell Phone Jammers 300 W VSWR Protection

Good quality GPS Signal Jammer for sales
Good quality GPS Signal Jammer for sales
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AM FM Radio LoJack Prison Cell Phone Jammers 300 W VSWR Protection

China AM FM Radio LoJack Prison Cell Phone Jammers 300 W VSWR Protection supplier

Large Image :  AM FM Radio LoJack Prison Cell Phone Jammers 300 W VSWR Protection

Product Details:

Place of Origin: China
Brand Name: GREETWIN
Certification: SGS, ISO9001
Model Number: GW-J260D

Payment & Shipping Terms:

Minimum Order Quantity: 1pcs
Price: Negotiable
Packaging Details: Wooden Case with PE Foam
Delivery Time: 10 Working Days After Received Payment
Payment Terms: T/T, L/C, Western Union, MoneyGram
Supply Ability: 500pcs per Month
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Detailed Product Description
Product Name:: Advanced Technology 300W Jammer Application:: Churches, Museums, Prison
Working Time:: Continual Operating Temp:: -20℃ To +55℃
Accessories: With 15dBi Directional Panel Antenna Jamming Range: 50 - 300meters,depend On Mobile Signal Strength
Output Power: 300W High Power Brand: GREETWIN

AM FM Radio LoJack Prison Cell Phone Jammers 300 W VSWR Protection




SIX band 300W GW-J260D will jam GSM, CDMA,DCS, PCS,WCDMA,3G, UMTS, Walkie talkie.

This cell phone prison jammer can keep you from being tracked by cell phone signal tracking systems. It is also good for schools, churches, conference rooms, hospitals and any other place that cell phones may be cause a distraction or interference.

RF Jammers are used to block radio signals. In a prison, RF Jammers can stop cell phones from getting service by severing the link between the cellular phone and the local wireless phone carrier with signal jamming. Signal jamming can work in one direction with a directional antenna, or in all directions with an omni-directional antenna to block radio signals, and prevent cell phone service.



1. Max 300watts total RF output power.

2. Stable capability, cost-effective choice

3. Different frequency band can be controlled independently by single switches;

4. Power Amplifiers protection design ensures the working reliability of the device.

5. Can customize these frequencies AM, FM Radio, LoJack 173MHz, VHF, UHF, Walkie-talkie, interphone, Wireless Toys , FM Radio, Remote Control, 27MHz, 49MHz, 433MHz,315MHz, 868MHz, 450MHz, iDEN, CDMA, GSM, GPRS, DCS, PCS, AWS, WCDMA,UMTS,3G,4G,LTE 700, LTE 800, LTE 2300, LTE 2600, GPS L1,GPSL2, Galileo, Compass, Glonass, WIFI, Bluetooth, Spy camera, WIMAX, UAV, Drone, etc.


Technical Specification:


Output interface Description Shield band of frequency RF output power
CH1 CDMA800 851-894 MHz 50dBm
CH2 WCDMA 3G 2110-2170 MHz 50dBm
CH3 GSM900 925-960 MHz 50dBm


/PCS 1900

1805-1880 MHz

/1930-1990 MHz

CH5 VHF 135-174MHz 50dBm




  GPS L1,LTE 2600 or LTE2300(Optional)

2620-2690MHz or

2300-2400MHz, or

1570-1580 MHz
  LTE800 or LTE700,WIFI, 2.4G(Optional)

790-821 MHz or

725-770MHz, or 

2400-2485 MHz

Power supply: AC220V, DC 28V
Total Output Power: 300Watt
Power consumption:1000Watt

Weight: 25Kg

Size(length × wind × high):510×430×350mm

Humidity: 30%-95%

Running Temperature: -20℃ to +55℃

Jammer Module Number   6
Cooling System Systematic Smart Cooling System
System Protection

VSWR  Protection

Jamming Source Frequency Scan Technology
Antenna Type High Gain Directional Panel Antennas
 Jumper  1/2 superflexible coaxial cable
Jamming range: 50-300m according to signal density of mobile network

Prisons, military, government, mosques, etc.



AM FM Radio LoJack Prison Cell Phone Jammers 300 W VSWR Protection

Contact Details
Shenzhen Greetwin Technology Co.,Limited

Contact Person: Greetwin

Tel: +8615112267605

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