A fascinating new report highlights the extensive use of the technology -WSPR- that has found a new location of MH370 dating way back to 1956.
The report that can be read here is authored by Richard Godfrey, Dr. Hannes Coetzee (ZS6BZP) and Prof. Simon Maskell.
WSPR (Weak Signal Propagation Reporter) 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 Force and Navy) has invested read more ⇒
Source:: AirlineRatings.Com