Analysis of Russia's "Silent" Software-Defined Jammer
# Analysis of Russia’s “Tishina” Software-Defined Jammer ## Key Events Russia publicly demonstrated its “Tishina” prototype jammer. This system uses directional antennas located 15–30 kilometers behind the front lines to emit approximately 100 watts (50dBm) of simulated jamming signals, targeting ground control stations on the opposite side of the front lines. ## Technical Analysis ### System Architecture “Tishina” is an integrated drone detection and jamming device. It uses **software-defined radio (SDR)** and **field-programmable gate arrays (FPGAs)** as its hardware core, along with electronic reconnaissance modules, to form an automated radio frequency杀伤 chain. ### Working Principle The system identifies target signal characteristics through **passive detection** and generates targeted jamming signals after processing by the FPGA. It targets drone control links such as LORA and ELRS. ### Key Technologies - **LORA Signals**: Based on Semtech’s proprietary protocol, they support long-distance decoding and are suitable for drone control…