Communication

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Across
  1. 3. Phonetic Alphabet Word for U
  2. 4. phonetic alphabet word for Y
  3. 7. Acronym for the organisation that uses and created sign language
  4. 8. maritime distress call which has priorities over urgent calls
  5. 10. acronym for absent without leave
  6. 11. Personal Role Radio acronym
  7. 12. what the e stands for in email
  8. 16. Word used over the walkie talkie/radio to say yes
  9. 18. Type of alphabet used by NATO
  10. 20. Phonetic alphabet word for J
  11. 21. type of communication using flags
Down
  1. 1. word said over the walkie talkie/radio to signal that the person has finished speaking and is waiting for a reply
  2. 2. type of communication involving seeing and speaking to someone over a screen
  3. 5. type of non verbal communication involving the movement of a body part e.g. thumbs up
  4. 6. word said over the walkie talkie/radio to say no
  5. 9. Type of code that uses dashes and dots
  6. 13. form of communication involving writing on a piece of paper
  7. 14. word said over the walkie talkie/radio to signal that the conversation is finished and no reply is expected
  8. 15. Type of communication using a device that beeps and that can only receive/send typed messages
  9. 17. Phonetic Alphabet Word for F
  10. 19. hand signal communication developed by a UPS branch to ensure stealth