noun
medium wave; medium frequency; MF
Technical term for radio waves in the medium frequency band (300 kHz–3 MHz), commonly used in AM broadcasting.
中波放送は夜間、遠くまで届くことがある。
Medium wave broadcasts can sometimes reach far distances at night.
このラジオは中波とFMの両方を受信できる。
This radio can receive both medium wave and FM.