80W GaN Jammer Module: Pro 400-500 MHz Anti-Drone Power

The 80W GaN jammer module is a self-contained RF countermeasure source covering 400-500 MHz. It combines a high-speed analog sweep generator, a GaN power amplifier, and an absorptive VSWR protection circuit in a 168.5 x 84.5 x 23 mm aluminum housing. Because no external modulation source is required, system integrators can drop this module into fixed-site or vehicle-mounted anti-drone platforms with minimal wiring. The output connector is a standard SMA female, and the unit runs from a 24-29 V DC supply.

RF Performance of the 80W GaN Jammer Module

This 80W GaN jammer module delivers a typical 80 W of saturated output across the whole band. Power-added efficiency is rated at 40% or better, which keeps the thermal load manageable for a module of this size. The maximum current draw is 10 A at full output, so a 28 V/300 W DC source gives enough headroom for continuous operation. Output VSWR is specified at ≤2.0 into a 50-ohm load, but the built-in absorptive protection handles short-term open or short conditions at the SMA port.

Sweep Source and Control in the 80W GaN Jammer Module

Unlike basic amplifier boards, this module includes a built-in high-speed sweep source. That eliminates the need for an external DDS or VCO in many counter-UAS designs. The RF output follows an analog sweep pattern across 400-500 MHz, which is useful for disrupting common drone control and video links in that band. To enable the output, apply +5 V or leave the control pin floating. Grounding the pin turns the module off. Three LEDs show power status, overvoltage, and over-temperature, which simplifies field diagnostics.

Mechanical Design of the 80W GaN Jammer Module

The base material is aluminum, and the total weight is 0.55 kg. With dimensions of 168.5 x 84.5 x 23 mm, the 80W GaN jammer module fits 1U enclosures and many outdoor radome housings. For reliable operation from -20 to +65°C, mount the baseplate to a heat sink or cold plate. The GaN devices are efficient, but at 80 W output you still need to remove tens of watts of dissipated heat.

Integrating the 80W GaN Jammer Module and Regulatory Notes

Before deploying this 80W GaN jammer module, check local radio regulations. Jamming transmitters are restricted in many jurisdictions. The FCC, for example, prohibits the sale or operation of signal jammers in the United States. See the FCC jammer enforcement page for details.

Why GaN Matters in This Band

Gallium nitride transistors offer higher breakdown voltage and better thermal conductivity than LDMOS or GaAs parts. In a 400-500 MHz jammer, that translates into a smaller final stage for the same 80 W output. The 80W GaN jammer module also runs at 40% efficiency, which reduces DC consumption and simplifies heat sinking. This is important in drone mitigation vehicles where rack space and battery capacity are limited. The module’s aluminum baseplate spreads heat evenly across the mounting surface, so a modest fan or chassis airflow is usually enough in moderate climates.

Use Cases and System Integration

This 80W GaN jammer module fits a range of counter-UAS roles. Fixed-site perimeter systems can use one or more modules to cover the 400-500 MHz segment. Vehicle-mounted units benefit from the low weight and 24 V operation, which matches standard automotive or military power buses. Portable briefcase or manpack jammers can also be built around the module when paired with a suitable battery. Because the sweep source is analog and internal, the control interface is just a single enable line, so no software or microcontroller is required for basic operation.

Output Matching and Antenna Notes

The output VSWR of ≤2.0 assumes a 50-ohm antenna or load. For best results, use a wideband antenna that covers 400-500 MHz with a return loss better than 10 dB across the band. If your antenna has higher VSWR, the internal absorptive protection will engage, but sustained mismatch will reduce output power and may increase heat. Always use a short, low-loss SMA cable between module and antenna. A ferrite common-mode choke on the DC supply line can reduce coupling from the RF output back into the vehicle or rack electronics.