During the early Forties, when the FM broadcast service was operating in its old band at 42 to 50 mc, Federal Communications Commission monitoring engineers discovered a strange effect. Short bursts of signal were received occasionally from FM stations as far as 1,370 miles away. Read more about the very early history of this phenomenon as it was pursued further in a 1958 Radio-Electronics article by G. Franklin Montgomery.
[Permission for use authorized by RF Café editor, Kirt Blattenberger - KB3UON]
Denny - K0LGI -