柯林斯詞典superheterodyne receiver /?su?p??h?t?r??da?n/ 1. N a radio receiver that combines two radio-frequency signals by heterodyne action, to produce a signal above the audible frequency limit. This signal is amplified and demodulated to give the desired audio-frequency signal 超外差式收音機 (Sometimes shortened to superhet) 返回 superheterodyne receiver