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Amateur Radio Crossword Puzzle
September 6, 2015

This week's Amateur Radio 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 *). Enjoy.


Reproduction of this puzzle without the express permission of RF Cafe is prohibited.

acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words

Amateur Radio Crossword Puzzle for September 6, 2015 - RF Cafe

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

 

2015 Crosswords Archive

Visit the Crossword Express website - RF CafeTake a well-deserved break and try your hand at some of these goodies. Every word in the RF Cafe crossword puzzles is specifically related to engineering, mathematics, and science. 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.

All of these crossword puzzles were created using the fabulous Crossword Express (now called "Magnum Opus") software.

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Amateur Radio Crossword Puzzle Solution for September 6, 2015 - RF Cafe

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