radio wave

These imitations can come in flat-packs, be inflatable, 2D or create a radar illusion of a tank by reflecting radio waves in a special way.

"Likewise bits of high ground are better for radio wave propagation, better for co-ordination of drones."

A small number of broadcasters and non-profit organisations transmit information into the country in the dead of night on short and medium radio waves, so North Koreans can tune in to listen in secret.

In a semi-rural location, it has a good line of sight and as radio waves travel in a straight line , it is easy for a pilot to move things in.

This is a different kind of World War II love story, about a hidden jewel and the power of radio waves and the mysterious ways in which human decency can survive even the cruelest circumstances.