 1AY (or 1WD) |
Clarence D. Tuska | Co-founder of the ARRL. |
 8CR |
Powel Crosley Jr | Co-founded the American Automobile Accessory Company and founded the Crosley Radio Corporation, the world's largest radio manufacturer. He was known as "The Henry Ford of Radio". |
| AK1A | Richard A. Newell (Dick Newell) |
Invented Packet Cluster thus changing the face of DXing. |
| G3PLX | Peter Martinez | Co- Inventor of the PSK31 digital transmission system. |
| G3TPW | Stephen Webb | Designer of the G3TPW Cobwebb antenna. |
 G5RV Plus 54 or so other calls. |
Louis Varney | Designer of the popular G5RV HF antenna. Read his short history here. |
 JA1AN |
Shozo Hara | President of Japan Amateur Radio League (JARL) for over 30 years. Helped guide development of amateur radio in Japan, which has more licensed amateurs than any other country. |
 JA1MP |
Sako Hasegawa | founder of  . |
 JA3FA |
Tokuzo Inoue | Founder of  . |
 K4FW (Also 9BBI, W8DUS) |
Albert R. Kahn (Al Kahn) |
Founder of ElectroVoice (1930). Co-founder of Ten-Tec (1968). |
 K5FLU |
Martin F. Jue | President of MFJ Enterprises Inc., which he founded in 1972. |
 K6LFH |
Mirabeau C. ("Chuck") Towns | Amateur satellite pioneer. OSCARs I & II were built in his garage. |
 KA2WEU |
Dr. Ulrich L. Rohde | The "Rohde" in the Rohde & Schwarz company. |
 KA9Q |
Phil Karn | Developed basis for wireless internet communications by adapting Internet communications protocol (TCP/IP) for radio use; |
 N6KR |
Wayne Burdick | Co-founder of Elecraft LLC in 1998. |
 OH2BH |
Martti Laine | Telecommunications expert, noted DXer and DXpeditioner. Has introduced or re-introduced Amateur Radio to several countries. |
 S53MV |
Matjaz Vidmar | Designer and builder of high-speed (11 MB/s) amateur digital network, several AO-40 satellite components, VHF/UHF/microwave radios. |
 SP9VRC |
Pawel Jalocha | Co- Inventor of the PSK31 Inventor of MT63 and Q15X25, digital transmission systems (among others). Thanks to Henryk Zowlski, SP9JPA, for the photo and extra information. |
 VE3CJ |
Noel Eaton | First non-U.S. president of IARU Helped build international support for new ham bands at 10, 18, and 24 MHz (WARC bands). Long time friend of His Majesty King Hussein (JY1). |
 VP2VI (W0DX) |
Bob Denniston | Leader of the first modern DXpedition (“Gon-Wacky”) in 1948. Pioneer in 160 metre DXing. ARRL President, 1966–1972, IARU President, 1966–1974. |
 W0CXX |
Arthur Andrew Collins | Founder of Collins Radio. The Collins Amateur Radio Club now hold the call. |
 W0GFQ |
Leo Meyerson | Founder of World Radio Laboratories. |
 W1AW (or 1AW, earlier 1WH) |
Hiram Percy Maxim | Son of the prolific inventor, Sir Hiram Stevens Maxim (most famous for inventing the machine gun). Hiram Percy Maxim invented the gun silencer and co-founded the American Radio Relay League (ARRL) who now use W1AW as the club station call. |
 W1HQ (Also W1CUT) |
Laird Campbell | First amateur to use transistorised transmitters on 160, 40, and 20 metres. |
 W2BML (Also 2BML) |
Dr. Harold Henry Beverage | Inventor of the Wave antenna, more commonly known as the "Beverage antenna". Read his short history here. |
| W2JTP | Byron Kretzman | RTTY and FM pioneer, |
 W4USR (Also K8KXK) |
Dennis J. Had | Founder of Dentron Radio Company, Ameritron, and Cary Audio Design. |
| W6SP | Col. John W. Browning | Decorated fighter pilot who was "father" of military satellites and former AMSAT board chairman. |
| W6VR | Faust Gonsett | Amateur radio author and technician. Founder of Gonset Laboratories. Brought affordable VHF equipment to amateur market. |
 W8GZ |
Major General Loren G. Windom | Inventor of the Windom antenna (1929). |