Compact RF Noise Filter with 1–55 MHz Coverage and Easy Inline Installation

Eliminate unwanted RF noise and interference on your HF and 6-meter amateur radio setup with the Comet TRF-MINI RFI Choke. This compact, inline choke installs directly in your coax line using PL-259 (male) to SO-239 (female) connectors. Designed for 1–55 MHz, it delivers outstanding RX noise suppression—reducing or eliminating RFI from computers, LED lighting, and other nearby electronics. Install it behind your antenna tuner or at the antenna feed point for a cleaner, quieter receive.

Key Features

• HF/6M coverage: 1–55 MHz (80/40/20/15/10/6 m)
• Inline design with PL-259 to SO-239 connectors
• RX noise suppression for noticeably quieter receive
• Helps reduce/eliminate RFI from computers, LED lights, and more
• Simple, plug-and-play installation at tuner or feed point

Specifications

• Model: TRF-MINI
• Impedance: 50 Ω
• Power rating: 350 W
• Overall length: 7 inches