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Complete guide to common ham radio abbreviations: 73, 88, CW shorthand

I've been collecting the most essential ham radio abbreviations and wanted to share a reference guide. Here are the key ones every ham should know:

  • 73 - Best regards, a greeting sent by radio amateurs over the air
  • 88 - Love and kisses, traditional sign-offs in ham radio communications
  • CW - Carrier wave, often used to denote a Morse transmission
  • FB - Fine Business, meaning OK and widely used in Morse transmissions
  • TKS/TNX - Thanks, widely used in CW transmissions

These originated from commercial landline telegraphy in the 1800s, adopted by amateur radio operators in the early 1900s.

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Excellent reference! One important note: Never say "many 73s" or "best 73s" - always use them in singular form without additions that make it sound plural. Same goes for 88. It's just "73" and "88" - these combinations are already complete!

These abbreviations come from the Morse Code era to cut down on transmission time, later finding their way into voice communications for DXers and contesters. As a CW operator, I love seeing new hams learn the history behind our shorthand. Try some CW - you'll appreciate why these abbreviations exist!

This is helpful but missing one detail - many CW expressions like 73 and 88 have carried over to voice communications. You'll hear "73" said on phone contacts all the time now. It's neat how these weren't ham radio inventions but adopted from existing telegraph practices.

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