MFJ Enterprises

{{Short description|American radio equipment manufacturer}}

{{Infobox company

| name = MFJ Enterprises

| logo = MFJ Enterprises Logo.png

| logo_size = 190px

| type = Private

| founded = 1972

| defunct = 2024

| location = Starkville, Mississippi

| key_people = Martin F. Jue (founder), Steven Pan (vice president)

| area_served = Worldwide

| industry = Electronics

| products = Amateur radio equipment

| operating_income =

| net_income =

| num_employees = 150 (at main location)

| revenue = $12,600,000 (2010)

| parent =

| subsid = Ameritron, Hy-Gain, Mirage, Vectronics

| homepage = {{URL|https://mfjenterprises.com/}}

| footnotes = LexisNexis Corporate Affiliations report, dated Dec. 30, 2010, accessed Jun. 16, 2011

}}

MFJ Enterprises was an American manufacturer specializing in a wide range of products for the amateur radio market. The company focuses 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.{{cite web|title=Nine named BCoE Distinguished Alumni Fellows|url=http://www.bagley.msstate.edu/news/nine-named-bcoe-distinguished-alumni-fellows/|publisher=Mississippi State University|accessdate=19 May 2016|date=31 March 2014}}

Representative products have been described in QST Magazine{{cite news | title=MFJ HF and VHF Peak Reading Wattmeters | publisher=QST | date=June 2006 | page=34}} and CQ Amateur Radio.{{cite news | title=MFJ BiasTee DC Power Injector | publisher=CQ Amateur Radio | author=Karl T. Thurber, Jr | date=July 2006 | page=80}}

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

On April 26th, 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.{{cite web|url=https://www.arrl.org/news/mfj-ceasing-on-site-production|title=MFJ Ceasing On-Site Production|work=arrl.org|date=April 26, 2024|access-date=May 23, 2024}}