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Backpack Signal Jammer
The Madoors USA MJ-150W Backpack Signal Jammer is a portable, backpack-carried, ultra-wideband RF jamming system engineered for protective forces, military personnel, and security units requiring mobile IED jamming, remote-controlled weapon defeat, and communications disruption capability during foot patrol, VIP protection, suspicious package response, and covert security operations. Covering GSM 800/900/1800/1900, 3G, GPS, and Wi-Fi frequency bands with output power options from 35 watts to 100 watts and an effective shielding range of up to 250 meters, the MJ-150W blocks all RF-based communication, remote detonation, and data transmission within its operational envelope — rendering remote-controlled IEDs, RF listening devices, and mobile communications inoperable without harming the operator or surrounding personnel.
Proven in field deployment by security units across North Africa, the Middle East, and domestically for many years, the Madoors USA MJ-150W is a leading defense industry product with verified performance in domestic and international projects. Ergonomic and lightweight at 15 to 20 kg, with up to 3 hours battery operation, simultaneous network and vehicle battery charging capability, and a hot-swap extra battery kit for uninterrupted extended mission operation, the MJ-150W delivers a significant performance and operational advantage over comparable backpack jammer systems. Institution-specific customization is available to match the specific frequency, power, and operational requirements of any user organization.
TECHNICAL SPECIFICATIONS
The MJ-150W operates across the following frequency bands — GSM 800-900 at 850–960 MHz, GSM 1800 at 1805–1880 MHz, GSM 1900 at 1920–1990 MHz, 3G at 2110–2170 MHz, GPS at 1520–1580 MHz. Three or four frequency bands are selected per unit configuration, with frequency adjustment available for different country-specific band allocations. Custom frequency configurations covering additional bands including Wi-Fi 2.4 GHz and 5.8 GHz are available for institution-specific requirements.
Output power is available in five configurations — 35W, 40W, 50W, 60W, and 100W — with the power level selected based on the required shielding range and operational environment. Effective shielding range reaches up to 120 meters for standard configurations and up to 250 meters for high-power configurations, with actual range varying by environment, frequency band, and output power setting.
Battery operation time is up to 3 hours on a single charge. The system supports simultaneous operation and battery charging from 230V AC, 110V AC, 24V DC, or 12V DC power sources — including vehicle battery charging from standard 12V and 24V vehicle electrical systems. A hot-swap extra battery kit enables battery replacement without system shutdown, providing uninterrupted operation across extended missions beyond the single-battery 3-hour endurance limit.
The cooling system is active with an integrated incoming air filter, managing thermal output during sustained high-power jamming operation and preventing overheating in the demanding thermal environments of military field operations. The housing is a ruggedized metal enclosure measuring 30 × 45 × 15 cm. The antenna system uses external high-gain omni-directional antennas providing 360-degree jamming coverage. Total system weight is 15 to 20 kg depending on power configuration and battery load.
KEY FEATURES
Ultra-Wideband RF Jamming — All Communication Channels & Bands
The MJ-150W covers all primary mobile communication frequency bands — GSM 800/900, GSM 1800, GSM 1900, 3G, GPS, and Wi-Fi — simultaneously blocking all RF-based communication, navigation, and data transmission within the effective shielding radius. Ultra-wideband coverage ensures that no RF-based device operating on any covered frequency band within the jamming envelope can communicate, transmit data, or receive remote commands — including remote IED detonators, mobile phones, GPS trackers, and RF listening devices.
Remote Controlled Weapon & IED Defeat
The primary military application of the MJ-150W is the defeat of remote-controlled improvised explosive devices — blocking the RF trigger signals used to detonate IEDs remotely during foot patrol operations, military exercises, and VIP movement through high-risk areas. By continuously jamming the frequency bands used by remote detonation systems, the MJ-150W prevents IED activation within its shielding radius for the full duration of the patrol or movement, protecting military personnel and VIPs from the primary threat posed by remote-triggered explosive devices.
GPS Jamming — Navigation & Location Denial
GPS band jamming at 1520–1580 MHz denies GPS navigation and location transmission capability to devices within the jamming envelope — preventing drone navigation, GPS-triggered device activation, enemy location reporting via GPS-enabled devices, and surveillance asset position transmission during sensitive operations.
RF Listening Device & Eavesdropping Prevention
Ultra-wideband RF jamming blocks all RF-based listening devices, covert microphones, and data transmission bugs operating on any covered frequency band within the shielding radius — providing complete RF eavesdropping prevention for interview meetings, secure briefings, and sensitive conversations conducted in environments where RF surveillance device presence cannot be physically confirmed.
Suspicious Package & Residential Area Intervention
The MJ-150W is deployed for suspicious package response operations in residential and public areas, blocking all RF detonation signals in the vicinity of the suspect package during the approach, assessment, and neutralization operation — protecting EOD personnel and the surrounding public from remote detonation of the suspect device throughout the intervention.
Backpack Form Factor — Mobile Foot Patrol Deployment
The backpack form factor allows the MJ-150W to be carried by a single operator during foot patrol, VIP protection movement, EOD response, and military exercise operations — providing continuous mobile jamming coverage that moves with the protected personnel rather than being limited to a fixed installation radius. The ergonomic backpack configuration distributes the 15 to 20 kg system weight across the operator's back and shoulders for sustained carry during extended field operations.
Output Power 35W to 100W — Shielding Range Up to 250 Meters
Five output power configurations — 35W, 40W, 50W, 60W, and 100W — provide a shielding range of up to 250 meters at maximum power, covering a protective radius appropriate for foot patrol column protection, VIP movement corridor protection, and EOD approach and neutralization operations in open and urban terrain environments.
Up to 3 Hours Battery Operation — Hot-Swap Extended Mission
The rechargeable battery provides up to 3 hours of continuous jamming operation on a single charge. The hot-swap extra battery kit allows battery replacement without system shutdown, extending mission duration beyond the single-battery endurance limit for operations requiring continuous jamming coverage over periods exceeding 3 hours — without any gap in jamming protection during battery exchange.
Multi-Source Charging — Network, 12V & 24V DC Vehicle
The MJ-150W charges from 230V AC, 110V AC, 24V DC, and 12V DC power sources — supporting charging from standard mains supply, military vehicle 24V DC systems, and civilian vehicle 12V DC systems. The system charges simultaneously while operating, maintaining battery state-of-charge during vehicle-mounted transit between foot patrol deployment areas.
Active Cooling with Integrated Air Filter
The active cooling system with integrated incoming air filter manages thermal output during sustained high-power jamming operation, preventing thermal shutdown and maintaining consistent jamming performance in hot and dusty field environments where passive cooling would be insufficient for continuous operation at higher power output levels.
Ruggedized Metal Enclosure — Field-Ready Construction
The metal enclosure housing provides physical protection for all internal components against the impact, vibration, moisture, and contamination encountered during field deployment in military and security operations environments — maintaining system integrity and operational reliability under the demanding handling conditions of active field use.
Low Maintenance & Operating Costs — Proven Field Economy
The MJ-150W has been in continuous field use by security units across North Africa, the Middle East, and domestically for many years, with a verified record of low maintenance costs, low calibration costs, and low operating costs compared to alternative backpack jammer systems. This economic performance makes the MJ-150W the cost-effective long-term choice for security organizations requiring sustained jammer capability across extended operational programs.
Institution-Specific Customization
Madoors USA produces institution-specific MJ-150W configurations based on detailed analysis of the user organization's specific frequency, power, operational, and physical requirements. Custom frequency band selection, output power configuration, antenna specification, and housing modifications are available to produce a tailored jammer system that precisely matches the operational profile of the deploying organization.
REGULATORY NOTICE
The use of signal jamming systems including the MJ-150W may be subject to national telecommunications regulations, defense procurement requirements, and law enforcement authority restrictions governing the operation of RF jamming equipment. Regulations vary by jurisdiction and operational context. Madoors USA recommends that all prospective operators verify applicable national regulations governing signal jammer operation before deployment. The MJ-150W is designed and supplied for use by authorized military, law enforcement, and government security personnel operating under appropriate legal authority.
DEPLOYMENT SCENARIOS & USE CASES
Madoors USA MJ-150W Backpack Signal Jammers are deployed across the full range of military, law enforcement, and government security applications requiring mobile RF jamming capability.
- Military foot patrol IED and remote detonation protection
- VIP and dignitary protection detail RF jamming coverage
- EOD suspicious package approach and neutralization support
- Military exercise and training area remote explosive prevention
- Counter-terrorism foot patrol signal jamming operations
- Covert meeting and interview RF eavesdropping prevention
- Border security patrol remote detonation protection
- Prison perimeter foot patrol signal jamming
- Government facility inspection and sweep RF blocking
- Special forces and tactical unit RF communications denial
- Mountainous and complex terrain patrol IED protection
- Emergency response scene perimeter RF control
- Category: Signal Jammers & GSM Blockers