SZ Vodasafe PJ850N 8-Channel High Power Outdoor Prison Signal Jamming System
SZ Vodasafe PJ850N is a heavy-duty, fully waterproof outdoor cell phone signal jamming system redesigned for large-scale sensitive security sites, evolved from mature industrial jamming hardware solutions. Delivering a maximum total RF output power of 800W across eight independent frequency bands, this unit carries an IP65 full weatherproof metal cabinet structure and supports professional Ethernet remote monitoring software plus handheld IR remote control for on-site quick operation. It is purpose-built to eliminate unauthorized mobile communication signals within designated coverage zones, delivering stable, long-distance signal suppression for prisons, military bases, detention facilities and other confidential restricted areas where mobile phone usage is strictly prohibited.
Core Product Advantages & Key Functional Features
The PJ850N integrates multiple industrial-grade optimization designs to guarantee long-term 24/7 uninterrupted outdoor operation, with comprehensive self-protection and flexible power regulation built into its circuit architecture.
Every single frequency channel supports independent RF output power adjustment, with each band capable of reaching a peak 100W transmission power and offering a full 31dB adjustable range in precise 1dB stepping increments. The circuit adopts a slow startup design to avoid instantaneous current surges during power-on, drastically improving overall operational stability and extending the service life of internal power amplifier modules.
Complete multi-layer self-protection mechanisms are embedded within the hardware circuit to prevent equipment damage under abnormal working conditions. This includes thermal overheat protection with built-in thermal cut-off sensors, over-current safety shutdown, wide-range high and low input voltage protection, and VSWR standing wave protection that automatically safeguards power amplifiers against antenna mismatches such as open-circuit or short-circuit antenna connections during installation or cable failure.
Installation and daily operation are highly user-friendly. The entire unit is housed in a robust all-metal sealed cabinet with IP65 ingress protection, fully resistant to rain, dust and humidity, making it suitable for permanent pole-mounted outdoor deployment. An integrated large aluminum alloy heat sink pairs with dedicated waterproof cooling fans to deliver efficient heat dissipation, solving heat accumulation issues common in high-power jamming devices and enabling non-stop long-hour operation without overheating risk.
Two independent remote control modes are available for flexible management. Users can operate basic functions via an infrared handheld remote controller on-site, which supports real-time output power status indication, independent power adjustment for each band, and individual channel power on/off switching. For centralized long-distance management, the RJ45 Ethernet interface connects to exclusive remote monitoring software, enabling centralized real-time monitoring, parameter configuration and fault diagnosis of multiple jamming units from a central control room.
High-efficiency RF power amplification modules deliver superior jamming coverage performance, with an effective suppression distance ranging from 50 meters up to 300 meters; the exact coverage radius varies according to local surrounding cellular base station signal strength.
RF Signal & Frequency Band Coverage Details
The PJ850N adopts FM frequency hopping internal modulation and VCO signal source design with fixed sweep rate, ensuring consistent signal suppression effect across all target cellular networks. The in-band flatness of each channel is controlled within 2dB to maintain uniform jamming performance without weak signal blind spots within coverage.
The eight independent frequency channels each carry a maximum adjustable 100W (50dBm) RF output power, covering mainstream global 2G, 3G, 4G LTE and 5G NR cellular communication frequency bands. The first channel covers 758-803MHz for 700MHz mobile communication signals, the second operates at 851-894MHz targeting 800MHz cellular networks, the third spans 939-960MHz for standard 900MHz GSM signals, the fourth covers 1930-1990MHz for 1900MHz PCS bands, the fifth works on 2110-2180MHz for 2100MHz 3G UMTS signals, the sixth covers 2300-2400MHz mid-band wireless communication, the seventh targets 2575-2690MHz 2600MHz 4G LTE bands, and the eighth channel covers 3400-3600MHz mainstream 3500MHz 5G NR frequency range. When all eight channels run at full power, the system achieves a combined total RF output power of 800W, while the hardware maximum continuous stable total power output is rated at 750W for long-term safe operation.
Technical Specifications
Power & Electrical Specifications
The PJ850N supports universal wide-range AC input power supply from 110V to 240V alternating current with a ±10% voltage tolerance, compatible with 50Hz and 60Hz global mains frequency standards. The full system total power consumption under full-load operation reaches 2300W, matched with the integrated heat sink and forced-air waterproof fan cooling system to dissipate generated thermal load efficiently.
Physical Dimension & Weight
The main jammer host cabinet measures 500mm in length, 410mm in width and 300mm in height, with a net weight of 52 kilograms for the main unit alone. The whole system is built with thickened metal structural panels to withstand outdoor wind and vibration during long-term pole mounting.
Environmental Operating Conditions
The device maintains stable operation within an ambient temperature range of -10 degrees Celsius to +60 degrees Celsius, adapting to extreme cold winter and high-temperature summer outdoor environments. It supports working humidity from 30% to 95% non-condensing, with the IP65 waterproof cabinet preventing moisture and dust penetration to internal circuit components.
Supporting Multi-Band Directional Panel Antenna Parameters
One multi-band directional panel antenna is included as standard matching hardware for the PJ850N system. The antenna features a standard 50Ω impedance and VSWR value controlled below 1.5 to minimize signal reflection loss, with a high 15dBi gain to extend effective jamming coverage distance. It carries a maximum power capacity of 500W, vertical polarization design, and inter-modulation performance lower than -150dBc to avoid interference with surrounding public communication equipment. The antenna interface adopts an N-F female connector for stable cable connection, with physical dimensions of 1286mm × 280mm × 135mm and a net weight of 12 kilograms. Direct lightning grounding design is integrated for outdoor surge protection, and the antenna structure can resist maximum wind velocity up to 60 meters per second, compatible with mounting poles of 40mm diameter.
Complete Standard System Configuration List
Each full set of SZ Vodasafe PJ850N jamming system contains all required assembly and operation accessories for direct installation without extra purchases. The package includes one main jammer host unit, one multi-band directional panel antenna, eight pieces of 3-meter long 1/2-inch coaxial cables fitted with N-M male connectors to link each RF channel port to the antenna, one full-length main power supply cable for mains connection, one complete set of dedicated remote monitoring software for PC centralized management, and one infrared handheld remote controller for on-site manual adjustment.
Remote Monitoring Software Login Interface
Main Application Scenarios
The PJ850N high-power outdoor jamming system is exclusively deployed in locations where all unauthorized mobile phone communication must be completely blocked to eliminate information leakage, illegal internal-external contact and security risks. Primary applicable sites include all types of prisons and correctional facilities, military camps and military restricted zones, confidential government compound areas, detention centers, and other high-security sensitive premises that require full wireless signal isolation. The directional high-gain antenna design allows targeted coverage of specific compound zones, avoiding unnecessary signal interference to public communication areas outside the security perimeter.
Product Design Highlights Recap
1.8 independent 100W adjustable RF channels, total peak 800W output, wide 50–300m jamming radius
2.IP65 fully sealed metal cabinet, waterproof and dustproof for permanent outdoor pole mounting
3.All-round hardware self-protection: overheat, over-current, wide voltage, VSWR anti-mismatch protection
4.Dual control solution: IR handheld remote for on-site operation + RJ45 Ethernet centralized monitoring software
5.Integrated heavy-duty heat sink and waterproof cooling fans for non-stop 24-hour continuous operation
6.Slow-start circuit design to stabilize power amplifier performance and extend equipment lifespan
7.Matching high-gain directional panel antenna with lightning protection and strong wind resistance
8.Universal global AC power input, wide operating temperature and humidity tolerance for all climate zones
