Baluns from Leading Manufacturers for Amateur Radio

Find a curated list of companies producing baluns, ununs, and line isolators for various ham radio antenna applications.

David
Reviewed by • Senior RF Engineer & Technical Editor March 2026

Baluns are essential components in many amateur radio antenna systems, ensuring efficient power transfer from the transceiver to the antenna and helping to suppress common mode currents. They are critical for maintaining a balanced antenna feed, which can improve signal quality, reduce RF interference (RFI) in the shack, and protect equipment from unwanted RF energy. Operators often use baluns when feeding a balanced antenna, like a dipole, with an unbalanced feedline, such as coaxial cable.

This category features manufacturers specializing in baluns and ununs for various amateur radio applications. Hams can find a wide range of designs, including those based on Dr. Jerry Sevick, W2FMI's research, from companies like Balun Designs LLC and ON7FU Ferrite Applications. Many suppliers, such as MFJ Enterprises and Palstar, also offer baluns as part of a broader product line that includes antenna tuners, filters, and other antenna accessories, providing solutions for different bands and power levels.

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