Ham Radio Celebrities

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Across
  1. 2. CRONKITE Licensed amateur radio operator
  2. 7. MORSE Inventor of Morse code
  3. 9. HUSSEIN Famous royal ham operator
  4. 11. JEMISON Astronaut and radio user
  5. 14. Founder of Heil Sound
  6. 15. Innovator in wireless energy
  7. 16. KUBASOV Cosmonaut and ham
  8. 20. SHEPHERD Ham and humorist
  9. 22. First voice transmission
  10. 25. POPOV Russian radio pioneer
  11. 26. Visionary behind radio broadcasting
  12. 27. Inventor of the triode tube
  13. 28. LOGIE TV and radio innovator
  14. 29. Early electrical experimenter
  15. 31. ARMSTRONG FM radio pioneer
  16. 33. VON Inventor of radio navigation
  17. 35. Early ham radio historian
  18. 36. GARRIOTT Astronaut and ham
  19. 37. Co-inventor of SSB technology
Down
  1. 1. Theorist behind electromagnetism
  2. 3. Pioneered wireless technology
  3. 4. GAGARIN Cosmonaut and ham operator
  4. 5. FRANCIS Inventor of spark gap
  5. 6. GATES Radio technology enthusiast
  6. 8. Radio wave innovator
  7. 10. Nobel Prize in radio
  8. 11. Father of radio communication
  9. 12. ALLEN Actor and licensed ham
  10. 13. STOLL Author and ham operator
  11. 17. Inventor of Tesla coil
  12. 18. WOZNIAK Apple co-founder and ham
  13. 19. MOORE British astronomer and ham
  14. 20. BELL Inventor of communication devices
  15. 21. BELL Ham and talk show host
  16. 23. Discovered radio waves
  17. 24. HEIL Innovator in audio technology
  18. 28. CARTER Licensed amateur radio operator
  19. 30. Father of FM radio
  20. 32. ARRL memorial callsign honoree
  21. 34. Maxim founder of ARRL