WIFI 2G 3G 4G Multi Bands Waterproof 500W Adjustable GPS Prison Cell Phone Signal Jammer
Model: U-J270HW
This 500W High Power Cell Phone Signal Jammer is engineered for critical security environments where information protection is paramount. Designed for prisons, military installations, and government agencies, it effectively blocks unauthorized mobile communications.
Key Features
- Maximum 500W total RF output power
- Manual adjustable output power for each channel
- Independent frequency band control with individual switches
- Power amplifier protection design ensures reliable operation
- Blocks 5 frequency bands simultaneously: CDMA, GSM, DCS, GPS, and WIFI
- Extended jamming radius up to 600 meters depending on signal strength
- Robust cooling system supports continuous operation
- Environmentally friendly and safe for human health
- Remote PC control capability with management software
- Key lock support and mounting hardware included
Technical Specifications
| Output Interface |
Shield Band Frequency |
RF Output Power |
Output Power/Channel |
| CH1 |
851-894 MHz |
53 dBm |
23 dBm/30KHz (min) |
| CH2 |
1920-1990 MHz |
53 dBm |
22 dBm/30KHz (min) |
| CH3 |
2110-2170 MHz |
53 dBm |
19 dBm/30KHz (min) |
| CH4 |
2400-2500 MHz |
53 dBm |
20 dBm/30KHz (min) |
| CH5 |
1572-1607 MHz |
53 dBm |
20 dBm/30KHz (min) |
Power Supply: AC110V / DC28V
Jamming Area: 50-600m (depending on mobile network signal density)
Weight: 47Kg
Dimensions: 720*452*335mm
Packing Size: 850*620*470mm
Output Power: 500W
Power Consumption: 1500W
Humidity: 30%-60%
Operating Temperature: -20 to +55°C
Operation Instructions
Initial Setup
Connect directional panel antennas (4G/GSM/3G/WIFI) and power supply interface (AC220V IN)
Powering On
Important: All antennas must be connected before powering on to prevent equipment damage.
1. Install all antennas first
2. Connect 220V AC power
3. Turn on the "RED Switch"
4. Press the green on/off button
Powering Off
1. Turn off the "RED Switch"
2. Disconnect 220V AC power from the main unit
Safety Note: Always connect all antennas before switching on the power supply. Do not remove antennas while the machine is operating.
Frequently Asked Questions
The jammer shell becomes hot after working for some time. Will long working hours damage the machine?
This is normal operation. The metal shell is designed to conduct heat away from internal components, maintaining optimal working conditions during extended operation.
Does the jammer have the same effect on GSM and CDMA cell phones?
CDMA phones have better anti-interference capabilities than GSM phones, so the jamming effect is more pronounced on GSM devices.
Is there a difference in jamming distance between indoor and outdoor use?
Yes, outdoor signals are typically stronger than indoor signals. The effective jamming distance depends on environmental factors including proximity to base stations and installation location.
Does the jammer interfere with other electronic equipment?
No. The electromagnetic signals emitted are strictly regulated and only affect mobile phone communications within designated frequency bands.
Is the jammer harmful to human health or cell phones?
The device is completely safe. Signal intensity complies with national environmental electromagnetic wave health standards and only disrupts phone-to-base-station connections without damaging the phones themselves.
Applications
Prisons, Military facilities, Schools, Detention centers, Government buildings, Oil and Gas facilities, Security services, Military units, Secret services, Museums, Factories, Border patrol, Customs, and other sensitive locations where mobile phone signals must be restricted.
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