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