FTVOGUE Current Balun Common Mode Choke Coil for HF Shortwave 1.8 30MHz Antenna with M Connector EM 25 Ferrite Rings for Dipole End Fed Antenna RFI Noise Reduction

Spec: Item Type: Shortwave Choke Magnetic Rings Material: Imported Iron Oxide Magnetic Rings Usage Frequency: 1.8-30MHz Withstand Power: 200W Magnetic Rings Diameter: Approx. 4.5cm / 1.77in Model: EM-25 Function: 1:1 Current Type Balun, Common Mode Current Suppression Power Capacity: EM25: 100W PEP How to Use: Directly install and use. packing list: 1 x Shortwave Choke Magnetic Rings 1 x Instruction Manual

• High-Power Ferrite Core Design: Utilizes a high magnetic permeability imported ferrite rings (EM-25, 1.77-inch diameter) that withstands high temperatures and power levels, rated for 100W PEP to ensure stable operation without core saturation.
• HF Common Mode Choke Coil: This 1:1 current balun is designed for the HF shortwave band (1.8-30MHz). It effectively suppresses common-mode currents on coaxial feedlines, reducing RF interference (RFI) and improving antenna system performance.
• Plug-and-Play M Connector: Comes pre-assembled with male and female M-types coaxial connectors (PL-259/SO-239 compatible), allowing for easy, tool-free installation directly into your antenna feedline between the radio and the antenna.
• Enhances Signal Clarity & SWR: By blocking unwanted common-mode currents, this choke helps eliminate noise on receive, reduces TVI/BCIs, and can contribute to a more stable and lower SWR reading, leading to cleaner transmitted and received signals.
• Durable for Ham Radio Use: Built specifically for the demanding environment of amateur radio stations. It provides consistent impedance across the HF spectrum and is a reliable solution for dipoles, end-fed antennas, and other wire antenna systems.