MFJ Enterprises

MFJ Enterprises was an American manufacturer specializing in a wide range of products for the amateur radio market. The company focused on station accessories, including antenna tuners and antenna switching equipment. MFJ was founded in 1972 by Martin F. Jue. As of 2014, the company was recognized as the largest producer of amateur radio products worldwide.

Representative products have been described in QST Magazine and CQ Amateur Radio.

The initials "MFJ" in the company name are those of the founder, Martin F. Jue (ham radio callsign K5FLU).

On April 26, 2024, Martin F. Jue announced that as of May 17, 2024, the company will cease on-site production at their Starkville, Mississippi, facility. Ameritron, Hy-Gain, Cushcraft, Mirage, and Vectronics brand products will be affected by the shutdown.

On April 15, 2026, ITU Corporation of Linton, Indiana announced it is acquiring the Cushcraft and Hy-Gain brands from MFJ.