Q-codes

Q codes and abbreviations are very useful when communicating under difficult conditions, when there is adjacent interference or with someone who is not fluent in English. Q codes also save time; it is quicker to send ‘QRM’ than ‘I am getting interference from other stations’. CW (Morse) contacts are made up almost entirely of Q codes and abbreviations. RTTY contacts also make use of them but often to a lesser extent they can look just like a cw (morse) contact or more like a phone contact depending on whether one is having a short ‘business-like’ qso or a lengthy chat; phone contacts also use some Q codes and one or two abbreviations. For example:

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