WSPR as Radar
It is a well established fact that radio waves can detect aircraft over short distances. Since the demonstration by Robert Watson-Watt and Arnold Wilkins in 1935 detecting a Handley Page Heyford aircraft by using radio signals from BBC Daventry, radar systems are now...
New Clues (2nd Update)
New clues reveal the demise of MH370. Since the crash of MH370 in the Indian Ocean a considerable amount of physical evidence has been gathered. 43 pieces of floating debris have been found and 41 delivered to the Malaysian authorities for investigation. Two items are...
WSPR as OTHR
WSPR uses High Frequency (HF) ionospheric propagation to send signals around the world. Typical frequencies are in the range 3 MHz to 28 MHz. Transmission power levels are up to 5 W continuous and the duration of the transmission is 110.6 seconds. The US military (Air...
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