EW Jammer Q-JMR Block 4 — AFS Defense Systems

The Q-JMR Block 4 EW jammer from AFS Defense Systems is a mobile and stationary modular radio jamming system designed for effective suppression of enemy UAVs and protection of positions in complex field conditions. The device has a universal design, is dust and moisture protected to IP65 standard (according to DSTU EN 60529:2018), withstands vibration and overload according to DSTU EN 60068-2-64:2022, and operates in a temperature range from -20°C to +60°C (DSTU EN 60068-2-2:2022). The casing is made of impact-resistant plastic, ensuring reliability in field operations.
 

Key Features and System Elements

• Programmable Modules — developed by Ukrainian engineers, allowing frequency ranges and operating logic to be configured for specific tasks.
• Up to 4 modules in Block-4 configuration with the ability to install programmable modules of the required frequency.
• Three operating modes: Emergency (simultaneous activation of all modules for rapid response), Operating (operator selects necessary channels to optimize power consumption), and Expert (full manual control of each channel with fine-tuning of frequency and bandwidth).
• Intelligent Control Panel displays the real-time status of each channel: operating frequency, module temperature, activity or malfunction, allows programming modes and quickly changing parameters without PC connection.
• Centralized Control Support — combining several devices into a network via RS-485 interface for synchronous or group control from a single point.

Technical Specifications

• Number of modules: up to 4 programmable modules can be installed (Block-4).
• Available module operating ranges: 400–570 MHz / 700–1020 MHz / 2100–2300 MHz / 2300–2600 MHz.
• Operating bandwidth: 25 to 100 MHz (module covers the entire range but operates in the selected band).
• Time to change module operating parameters: < 60 seconds in field conditions.
• Emission power per module: approximately 50 W.
• Total system output power: 200 W (Block-4).
• Antenna type: omnidirectional (4 antennas included).
• Power supply: built-in 40Ah battery.
• Built-in battery charging: ~220 V or 12/24 V from vehicle's electrical system.
• Control: remote control or toggles on the front panel; remote control with 10m cable included.
• Autonomy: 60 to 120 min with simultaneous operation of all 4 channels.
• Cooling system: closed tunnel system with active airflow, preventing dust and moisture ingress.
• Casing material: impact-resistant plastic.
• Weight: 17 kg.
• Vibration and overload resistance: according to DSTU EN 60068-2-64:2022.

Package Contents

• Q-JMR Block-4 device with 4 built-in antennas.
• Remote control with 10m cable.
• Cable for 220 V mains connection.
• Cable with terminals for connection to car battery or vehicle's electrical system (12/24 V).

Note: the module covers the entire specified range (e.g., 400–570 MHz), but operates simultaneously in a selected band 25 to 100 MHz wide; frequency and bandwidth can be quickly changed via the remote control according to the current task.

The Q-JMR Block 4 system is designed for field use — on mobile equipment and stationary positions. Its versatility, IP65 protection, Ukrainian-developed programmable modules, intelligent control panel, and centralized control capability make this platform an effective solution for ensuring the electronic security of units.

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