High-Performance High-Frequency Choke Balun: This 1:1 high-frequency shortwave choke balun is designed for the 1.8-50 MHz band and is ideal for amateur radio and shortwave communication systems. It effectively suppresses common-mode RF current, improves feeder balance, and helps reduce radio frequency interference. Wide Frequency Range (1.8-50 MHz): This choke balun covers the most commonly used high frequencies and the 6-meter band, supporting operating frequencies from 160 meters to 6 meters. It is suitable for FT8, SSB, CW, and other digital and analog modes, and operates normally throughout its specified range. Ni-Zinc Ferrite Core: This balun uses a high-quality nickel-zinc ferrite core, providing high impedance common-mode current over a wide frequency range. The ferrite material helps achieve stable performance, reduce RF noise, and improve overall transmission efficiency. High Power Handling Capability: This choke balun is designed for high-power, high-frequency applications and, when properly installed and cooled, can be used with high-power transmitters and amplifiers. It is suitable for demanding operating modes such as FT8, as well as other continuous or high duty cycle digital modes. Optimized for FT8 and Digital Modes: This balun is particularly well-suited for FT8 operation in the 1.8-50 MHz band, where stable impedance and good common-mode rejection are crucial. It helps maintain a clearer signal and minimizes RF feedback to the radio equipment during continuous or long-duration transmissions. Color: Green Material: Metal Package Contents: 1 * Shortwave choke balun Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.