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Vanished Signals: Legacy Communication Codes is a easy crossword puzzle with 14 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.

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Vanished Signals: Legacy Communication Codes
Explore the historic and obsolete communication codes that shaped early messaging and telegraphy.
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Across
  • 1. NOT obsolete, to confirm awareness in clue crafting
  • 2. Sunlight-based signaling device using mirrors
  • 4. Mechanical cipher device used for encryption
  • 7. Flag signaling method used at a distance
  • 10. Fast writing technique for note taking and dictation
Down
  • 3. Network for sending typed messages before email
  • 5. Visual gesture-based method for transmitting messages
  • 6. Code using dots and dashes invented by Samuel
  • 8. Early electrical communication system using coded signals
  • 9. Messenger god’s name often used for courier codes
  • 11. Early data storage method with holes representing info
  • 12. Type of telephone dialing now replaced by touch tone
  • 13. Nautical signaling with flags raised on a pole
  • 14. Acoustic signaling device often used in railways
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