The Sputnik Panic
Published on October 4, 2012 The beeping tones were incessant. By tuning onto the frequencies of 20.005 or 40.002 MHz, anyone the world over could listen to this simple repeating
HistoricWings.com :: A Magazine for Aviators, Pilots and Adventurers
A Magazine for Aviators, Adventurers and Pilots
Published on October 4, 2012 The beeping tones were incessant. By tuning onto the frequencies of 20.005 or 40.002 MHz, anyone the world over could listen to this simple repeating