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Amateur Radio Crossword Puzzle
September 6,
2015
Take a break from the drudgery by trying your hand at some of these goodies. Every word in the RF Cafe crossword puzzle contains the usual collection of science, math, and engineering terms, and also includes special words related to Amateur Radio (clues labeled with asterisk *). There are no generic backfill words like many other puzzles give you, so you'll never see a clue asking for the name of a movie star or a mountain on the Russia-China border. You might, however, find someone or something in the otherwise excluded list directly related to this puzzle's technology theme, such as Hedy Lamarr or the Bikini Atoll, respectively. Enjoy.
Reproduction of this puzzle without the
express permission of RF Cafe is prohibited.
acr. = acronym, abbr. = abbreviation,
pl. = plural, wds. = words
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| ACROSS | DOWN |
| 1. * Next level of Amateur Radio license after Technician 5. * The 'A' in ARRL 9. Circular mounting hardware (pl.) 11. Unit for 1,000,000 watt-seconds (abbr.) 12. Measure of source / load mismatch (abbr.) 14. * Mechanical device for sending Morse Code 17. 1E6 nanoseconds 18. Electromagnetic interference (abbr.) 19. Heat-resistant glass type 20. A common RS-232 serial bus command (abbr.) 22. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.) 25. Quantum of vibrational energy 27. Local Oscillator (abbr.) 28. One port of an amplifier 29. Science of assuring operation amid dense EM background noise (abbr.) 30. Chemical symbol for holmium 31. Type of flip-flop 32. Chemical symbol for gallium 34. Logarithmic ratio (abbr.) 36. Opposite of O.D. 38. Centimeter (abbr.) 40. PC follower 41. One port of an amplifier 42. Coder/decoder (abbr.) 43. * Ham's code for "Is my transmission being interfered with?" 44. International phonetic alphabet letter "H" 45. Intel x86 command for " jump if above" 48. 30 kHz to 300 kHz 50. Chemical symbol for antimony 51. Sound frequency in the human hearing range (abbr.) 52. "Calling any amateur radio station" 54. Modulation type (abbr.) 55. Chemical symbol for lanthanum 57. Unit of liquid measure (abbr.) 58. Electronic component package type (abbr.) 59. Unit of time (abbr.) 61. PC follower 62. * The 'L' in ARRL 64. Configured a switch to break electrical contact 67. A common battery cell size 68. * Hiram Percy _____, founder of the ARRL 69. Logic family 70. Boob tube (abbr.) 71. Synchronous Digital Hierarchy 73. * Ham's code for "Are you busy?" 74. 1/000 of an amp (abbr.) 76. Aircraft bulkhead (pl.) 80. * Type of Morse Code key (pl.) 81. Akin to dynamics, with no movement |
1. Software role playing type 2. Chemical symbol for neon 3. The Microwave Office software company (abbr.) 4. Chemical symbol for lanthanum 5. Chemical symbol for argon 6. Minimal Shift Keying (abbr.) 7. Chemical symbol for europium 8. The stuff in the solder core 10. * Founder of the ARRL (3 wds.) 12. Miniature threaded RF connector 13. Refers to the IEEE802.11 networks (abbr.) 15. Name for a reflected radar signal 16. Elemental compound used for microwave frequency reference oscillators (abbr.) 18. Engineering Change Order (abbr.) 21. Signal-to-noise ratio (abbr.) 23. Conductor type for parallel buse interconnections (2 wds.) 24. Last statement in a BASIC program 25. It can follow an MS 26. Generate a periodic signal 32. Chemical symbol for gallium 33. * The "R" in ARRL 35. Chemical symbol for bromine 36. Band between RF and BB 37. * Next level of Amateur Radio license after General 39. Chemical symbol for manganese 45. JavaScript (abbr.) 46. 300 kHz to 3 MHz 47. A BPF specification (abbr.) 49. Type of modulation (abbr.) 51. Automated Test Equipment (abbr.) 53. * Ham's code for "Station is leaving the net." 56. A common battery cell size 57. Type of antenna with four-sided loops 60. Longitudinal shape-forming structural element 61. Antenna (abbr.) 62. Period of reduced production 63. One state of matter 65. High-speed logic family 66. Trigger diode that conducts current only after its breakdown voltage has been exceeded momentarily (pl.) 72. RF & microwaves magazine founded by Gary Breed, now Summit Technical Media (abbr.) 73. * ARRL's magazine 75. Chemical symbol for gadolinium 77. Unix, Linux or Windows (abbr.) 78. Type of flip-flop 79. Opposite of a LO |
See solution below
Copyright: 1996 - 2026 |
About RF Cafe RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
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