Trench EW systems

A trench EW system is an electronic warfare device designed for deployment directly at positions, in bunkers, fortifications, or near vehicles. It creates a local radio-jamming field across designated frequency bands and disrupts the control, video transmission, or communication channels of FPV drones and other UAVs. 

A trench EW system creates a local radio-jamming zone around its installation point. After activating all or selected frequency bands, the equipment interferes with the drone’s control, video transmission, and communication channels. As a result, the drone may lose a stable connection with its operator and fail to complete its mission. 

Depending on the model and operating frequency bands, an EW system can be used to counter FPV drones, DJI Mavic quadcopters, and UAVs that use mobile communication channels. The EW Hrets 4MO provides protection against FPV drones at a distance of 70–400 m, while the EW backpack “AntiDrop” is designed to neutralize DJI Mavic drones within a 50–100 m radius, depending on operating conditions. 

Systems that create a local jamming zone around the deployment point are used to protect positions. The EW system Hrets 5UL is designed to provide protection against FPV drones in the 170–600 MHz range, while the EW signal suppression system Hrets 5ML can disrupt signals at distances of up to 400 m, depending on the terrain and antenna type. 

Trench EW systems are used to protect:

• forward positions;
• trenches and bunkers;
• observation posts;
• field fortifications;
• personnel locations;
• vehicles and temporary field installations.

This equipment creates a local jamming zone around a specific deployment point.

To counter DJI Mavic quadcopters, systems are used that operate across the frequency bands employed by these drones for control and video transmission. The Anti-drop EW Hrets 4MC supports dual frequency bands of 2360–2500 MHz and 5725–5850 MHz for disrupting control and video transmission channels. The EW backpack “AntiDrop” can also be used for mobile protection against DJI Mavic drones in field conditions. 

Certain EW systems have NATO codification for official use within military structures. These include the EW Hrets 4MO for countering FPV drones and the anti-drop EW Hrets 4MC for countering DJI Mavic quadcopters. NATO codification simplifies the procurement and inventory management of the equipment. 

Yes. A trench EW system can be installed near vehicles or equipment to create a local signal-jamming zone. The specific model should be selected based on the types of drones involved, relevant frequencies, required protection range, power source, and deployment conditions. A trench EW system does not replace camouflage, physical protection, or drone detection systems. Instead, it serves as one element of a comprehensive protection strategy.

When choosing a system, determine:

• which drones pose the most frequent threat;
• which frequencies they operate on;
• what area or range needs to be covered;
• whether one or multiple frequency bands need to be disrupted;
• whether the system needs to be portable;
• what power source will be used;
• what weather and field conditions the equipment will operate in.

Before you buy a trench EW system, it is recommended to provide this information to a specialist who can help select the appropriate model and configuration.

The price depends on the number of frequency channels, module power, operating bands, design, antenna type, power supply format, and configuration.

When searching for the price of trench EW systems, it is worth comparing not only the cost of individual models but also the types of threats they are designed to counter. Compact systems such as Hrets 3M are less expensive than high-power Hrets 6M systems or modular Hrets XL solutions. The final price also depends on the configuration and additional equipment.

The effectiveness of EW systems is influenced by the frequency range, antenna type, terrain, UAV flight altitude, and distance to the drone operator. Proper antenna placement and selecting the appropriate jamming-channel configuration are also important. In challenging conditions, multichannel or high-power systems may be used to create a denser radio-jamming field. 

You can purchase EW systems Hrets, UAV jamming equipment, and portable systems through the official BlueBird Tech website and authorized sales channels. The catalog includes Hrets 3M, Hrets 4MO, Hrets 4MC, Hrets 5ML, Hrets XL, and other systems designed to counter FPV drones and DJI Mavic quadcopters.