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Qingdao Number 2 Radio Factory, [15] the predecessor of Hisense Group, was established in September 1969. [6] [ Bell 2] The first product of the small factory was a radio sold under the brand name Red Lantern, but the company later gained the know-how to make TVs through a trial-production of black and white televisions ordered by the Shandong National Defense Office. [16]
The introduction of organized radio broadcasting in the early 1920s resulted in a dramatic reorientation and expansion of RCA's business activities. The development of vacuum tube radio transmitters made audio transmissions practical, in contrast with the earlier transmitters which were limited to sending the dits-and-dahs of Morse code. Since ...
The early history of radio is the history of technology that produces and uses radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became radio. Radio development began as "wireless telegraphy". Later radio history increasingly involves matters of broadcasting.
The timeline of radio lists within the history of radio, the technology and events that produced instruments that use radio waves and activities that people undertook. Later, the history is dominated by programming and contents, which is closer to general history .
The D-STAR open radio system was developed by Icom based on digital radio protocols developed by the Japan Amateur Radio League and funded by the Ministry of Posts and Telecommunications. [6] This system is designed to provide advanced voice and data communications over amateur radio using open standards.
Milestones in radio: the first half century (1895–1945). The UNESCO courier (February 1997), p. 16–21; Radio Review/Radio Listeners Guide (1925–1929), Broadcasting Yearbook (1935–2010), World Radio TV Handbook (1947–) Berg, Jerome S. The early shortwave stations: a broadcasting history through 1945 (2013) radioheritage.net
The Fisher was the brand name for high-end, high quality hi-fi electronic equipment manufactured in New York by The Fisher Radio Corp. during the "golden age" of the vacuum tube, which was named after the company founder, Avery Fisher. [9] [10] [11] During this period, similar brands were H.H. Scott, Marantz, Harman Kardon, and McIntosh. Some ...
History of radio in the United Kingdom (2 C, 20 P) History of radio in the United States (2 C, 87 P) A. Amateur radio (23 C, 114 P) C. Radio controversies (5 C, 38 P) D.