Experience pure, uninterrupted communication with the WOOKLEA 1:1 Current Balun Choke, your ultimate solution for terminating RF interference. Designed specifically for 1.8-54MHz HF shortwave radios, this vital component actively suppresses common-mode currents on the coaxial shield, functioning as a powerful EMI filter to prevent strange equipment behavior during FT8 digital modes. We prioritize authentic, durable materials over flashy gimmicks—this choke is custom-wound with premium -3 ultra-flexible coaxial cable around a high-quality Nickel-Zinc ferrite core. Both the UHF Male and Female connectors are rigorously assembled using pure copper soldering to minimize insertion loss. Installation is incredibly straightforward: simply connect the male end directly to your radio's output and the female end to your feedline or antenna tuner. Built to resist high temperatures and magnetic saturation, this compact 6.2 oz unit stably supports 200W SSB power. Whether you are optimizing your home station grounding, conducting RF tests, or packing your go-box for an amateur radio contest, this choke ensures your signal remains strong and pure. Package dimensions: 4.7 x 4.3 x 1.4 inches.