In 1937 one of the 20th century’s premier inventors, Maj Edwin H. Armstrong, began regular FM radio broadcasts from experimental W2XMN, a 40 kW station transmitting from his iconic tower on the Palisades above the Hudson River in Alpine, New Jersey. Legend has it that Armstrong, who invented FM as well as the superheterodyne and superregenerative receiver, picked the site so he could view the t…
American Radio Relay League | Ham Radio Association and Resources