Radio.
the minimum distance along the earth's surface between the position of a short-wave transmitter and the region where its signal is received after one reflection from the ionosphere.
[ 1925-30 ]
Radio.
the minimum distance along the earth's surface between the position of a short-wave transmitter and the region where its signal is received after one reflection from the ionosphere.
[ 1925-30 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012