1. Radio. a signal sent at the beginning of radiograms conveying general information or sent by an amateur as an invitation for any other amateur to reply.

  2. Military. charge of quarters.

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How to use CQ in a sentence

British Dictionary definitions for CQ


  1. telegraphy telephony a symbol transmitted by an amateur radio operator requesting two-way communication with any other amateur radio operator listening

abbreviation for
  1. military charge of quarters

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