Technician Class License

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Across
  1. 1. A frequency difference for repeater operation
  2. 5. Equipment that captures and processes radio signals
  3. 6. Reduces electric shock risks
  4. 7. The unit of power
  5. 8. The cable that connects the antenna to the transceiver
  6. 11. The flow of electrical charge
  7. 12. The route a signal takes from transmitter to receiver
  8. 15. A circuit that generates a periodic signal
  9. 21. A device that boosts signal strength
  10. 24. A station that receives a weak signal and retransmits it
  11. 26. The unit of electrical resistance
  12. 27. Radio Frequency Interference, unwanted signal disturbance
  13. 29. Root Mean Square, a method for measuring voltage
  14. 30. Long-distance communication
  15. 31. A directional antenna with elements in a line
  16. 32. A device that radiates or receives radio waves
  17. 34. A complete path for electric current
  18. 35. The unit of frequency in cycles per second
  19. 37. The electrical potential difference between two points
  20. 39. A layer in Earth's atmosphere that reflects radio waves
  21. 40. A type of antenna with two equal lengths
  22. 43. Automatic Packet Reporting System for location tracking
  23. 44. An electrically operated switch
  24. 45. A safety method to prevent electric shock
  25. 47. The orientation of radio waves
  26. 49. An event where operators make rapid contacts
  27. 54. Single Sideband modulation
  28. 55. Receiver Incremental Tuning for frequency adjustments
  29. 57. A test required to obtain an amateur radio license
  30. 59. A radio wave that follows Earth's surface
  31. 61. Standing Wave Ratio, measures antenna efficiency
  32. 65. The range of frequencies a signal occupies
  33. 66. Electromagnetic Interference, unwanted electrical noise
  34. 68. Voice Operated Transmit switch
  35. 70. How radio waves travel through space
  36. 71. A unit to measure sound intensity or signal strength
  37. 72. Interference caused by natural electrical disturbances
  38. 73. A location system for identifying a radio station’s area
  39. 74. The rate at which a wave oscillates, measured in Hz
Down
  1. 2. Equipment that provides electrical power to circuits
  2. 3. Exceeding the maximum current or voltage
  3. 4. A device that transmits and receives signals
  4. 9. A coil of wire that creates magnetic fields
  5. 10. The reduction in voltage in a circuit
  6. 11. Continuous Wave, Morse code communication
  7. 13. Push To Talk, a button to begin transmission
  8. 14. A device that removes unwanted frequencies
  9. 16. Joining components by melting metal alloy
  10. 17. A safety device that protects circuits from overload
  11. 18. A loop where output is fed back into the input
  12. 19. Required certification to operate amateur radio
  13. 20. A circular antenna design
  14. 22. A communication method using short and long signals
  15. 23. Frequency Modulation, a type of signal modulation
  16. 24. A station that receives and passes messages
  17. 25. The process of varying a carrier signal for communication
  18. 28. An electronic component that resists current flow
  19. 33. The distance a radio wave travels in one cycle
  20. 35. High Frequency, typically 3-30 MHz
  21. 36. A component that stores electrical energy
  22. 38. The resistance to AC current flow
  23. 41. A postcard confirming a radio contact
  24. 42. A unique identifier assigned to a radio operator
  25. 46. A portable source of electrical power
  26. 48. Relationship between voltage, current, and resistance
  27. 50. The increase in power or amplitude in a circuit
  28. 51. An event for emergency preparedness and outdoor setup
  29. 52. A signal that travels directly between antennas
  30. 53. Equipment that generates and sends radio waves
  31. 56. The process creating ions in the ionosphere
  32. 58. Amplitude Modulation, a type of signal modulation
  33. 60. Ultra High Frequency, typically 300 MHz - 3 GHz
  34. 62. Very High Frequency, typically 30-300 MHz
  35. 63. Radio A service for hobbyist radio communication
  36. 64. A periodic change in solar activity
  37. 67. A signal with continuous variation
  38. 69. A signal transmitted as binary code