noun
medium wave
Technical term in radio broadcasting; refers to the medium wave band (approximately 300 kHz to 3 MHz).
中波長のラジオ放送は夜間遠くまで届く。
Medium wave radio broadcasts can reach far at night.
長波 (longwave) is lower in frequency (30–300 kHz) compared to 中波長.
Compound of 中 (middle) + 波長 (wavelength), directly translating to 'medium wavelength'.