Across
- 2. Amplitude modulation format
- 3. Invented early electrical tech
- 6. Popular DX award program
- 8. Slang term for amateur
- 9. Radioteletype communications
- 10. Early digital text mode
- 12. Continuous wave Morse code
- 14. Record of radio contacts
- 15. Geographic radio location
- 17. Shortened operational phrases
- 19. Iconic radio kit builder
- 22. Early public radio use
- 24. Frequency modulation invention
- 25. First amateur satellite
- 27. Unit of radio frequency
- 29. Mentor for new operators
- 30. Competitive ham event
- 32. VHF/UHF range extender
- 33. Custom-built radio equipment
- 34. Unique operator identifier
- 36. Original wireless transmission
Down
- 1. Early radio amplifier tube
- 4. Long-distance radio communication
- 5. Popular HF band range
- 7. First amateur licensing exam
- 10. National ham radio organization
- 11. Radio conversation term
- 13. Modern SDR-based modes
- 16. General call to all stations
- 18. Common receiver design
- 20. Revolutionized radio circuits
- 21. Regulatory radio authority
- 23. Precursor to radio
- 24. Emergency readiness event
- 25. Key radio invention
- 26. Amateur satellite communications
- 28. Early radio pioneer
- 31. Signal source for testing
- 35. International ham radio union
- 36. Single-sideband voice mode