Crossword clues for the word: EHF The word EHF has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for EHF Showing 1 to 5 of 5 results Clue(s) "Radio band, for short (HEF anagram)" 30-300 GHz Ham operator's abbr. Ham's frequency range; abbr. One end of the radio spectrum: Abbr.