Yaesu (brand)

Lore & Background

Yaesu was initially formed to develop and manufacture commercial and amateur radio transceivers for the Japanese market. Within five years, the company had signed foreign sales agreements for export to Australia and Germany. In Europe, equipment was sold under both the Yaesu brand and the Sommerkamp brand, after Swiss firm Sommerkamp began importing Yaesu equipment in 1963 and selling it under its own name. Yaesu's line was first imported into the U.S. by Spectronics, Inc. of Signal Hill, California, in 1965, and transceiver manufacture was outsourced to Henry Radio in Los Angeles.

Founder Sako Hasegawa died in 1993, and Jun Hasegawa took over as managing director. In 1998, Yaesu Musen acquired the STANDARD radio equipment brand from Marantz Japan, and the company name was changed in 2000. In 2007, Motorola announced its intention to purchase 80% of Vertex Standard, forming a joint venture with Tokogiken (controlled by Jun Hasegawa) holding the other 20%; the deal was completed in January 2008. The joint venture was dissolved effective January 1, 2012, with the Vertex Standard land mobile division operating as a wholly owned subsidiary and the amateur, airband, and marine radio business transferred to the new company 'Yaesu Musen'.

In 2013, Yaesu launched its own digital mode, System Fusion, which uses C4FM 4-level FSK technology for digital voice. System Fusion is compatible with analog FM, allowing repeaters to migrate gradually, and can automatically determine whether an incoming signal is C4FM or conventional FM. It supports data transfer at up to 9,600 bits per second. Yaesu is the only company with System Fusion-enabled devices, while ICOM and the Japan Amateur Radio League use D-STAR, and other brands use DMR.

Reader's Guide

Yaesu's significance lies in its long-standing role as a major manufacturer of amateur radio equipment, particularly its impact on the U.S. market through the FT-101 line in the 1970s. The brand's history reflects the globalization of the amateur radio industry, with early export agreements to Australia and Germany, and distribution through multiple brands in Europe and the U.S. The company's corporate evolution—including the acquisition of the STANDARD brand, the Motorola joint venture, and the subsequent restructuring—illustrates the consolidation and shifting ownership patterns in the radio communications sector. Yaesu's introduction of System Fusion in 2013 represents a strategic move to offer a proprietary digital mode that maintains backward compatibility with analog FM, distinguishing it from competing protocols like D-STAR and DMR. The brand's legacy is tied to its continuous focus on amateur radio transceivers, despite corporate changes, and its role in providing equipment that bridges analog and digital technologies for the amateur community.

Did You Know?

• Yaesu was founded in 1959 by Japanese radio amateur Sako Hasegawa (call sign JA1MP) in the Yaesu district of Tokyo.
• Yaesu equipment was first imported into the U.S. in 1965 by Spectronics, Inc. of Signal Hill, California.
• In 2013, Yaesu launched System Fusion, a digital mode using C4FM 4-level FSK technology that is compatible with analog FM.
• Yaesu is the only company with System Fusion-enabled devices; other brands use D-STAR or DMR.