Alpine, New Jersey…

Subsequent to Armstrong’s frequency modulation system, much of which was patented in 1933, he set out to prove its superiority over AM. He first approached RCA, offering them first option on his new invention. In the spring of 1934 he set up his system in the Empire State building and for the next few years […]

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From Professor Irving Kalet….

This is a post written by Professor Kalet: Analog Modulation-Back to the Future? Or was Armstrong’s Frequency Modulation the “Last Word” in Analog Modulation In recent times there has been a renewed interest in Edwin Armstrong, his work, his career and his life. This “blog” is probably the best evidence of that renewed interest. A […]

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