高こう周しゅう波はこうしゅうはFreq.FrequencyTop 50,000じ字FuriganaMeanings1nounhigh frequency; HFTechnical term for electromagnetic waves with frequencies from 3 to 30 MHz. Also used more broadly for any high-frequency signal or wave.高こう周しゅう波は回かい路ろの設せっ計けいには専