noun
short-wave receiver
Technical term for a radio receiver designed to pick up short-wave frequencies.
彼は短波受信機で海外の放送を聞いている。
He listens to overseas broadcasts with a short-wave receiver.
短波ラジオ is a more common, consumer-oriented term for a short-wave radio, while 短波受信機 is a technical term emphasizing the receiving function.
Compound of 短波 (short wave) + 受信機 (receiver).