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Science & Engineering Crossword Puzzle
September 20, 2015

This week's crossword puzzle, as is the case with all RF Cafe crossword puzzles, has only words and clues related to science and engineering. Time for generating the puzzle is short today, therefore, so is the puzzle. Enjoy.

I will be glad to create a special edition crossword for your newspaper, newsletter, etc.

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

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

Science & Engineering Crossword Puzzle for September 20, 2015 - RF Cafe

1. Opposite of common mode

12. A crescent shaped figure formed on a sphere or plane by two intersecting arcs

13. European Telecommunications Standards Institute (abbr.)

14. An overcurrent protection device

16. __ + 32 Across is this website's title

18. Coefficient of temperature (abbr.)

20. Chemical symbol for neodymium

22. Chemical symbol for lithium

23. Chemical symbol for aluminum

24. Amateur Radio Association (acr.)

26. Equal to 4" in equestrian circles

29. High electron mobility transistor

31. Permeability-tuned oscillator (abbr.)

32. 16 Across + ____ is this website's title

34. Coordinated Universal Time (abbr.)

35. Exponent that returns the original number

36. Logic family

37. Chemical symbol for europium

38. Unit of inductance (abbr.)

40. ______ velocity - speed necessary to become free of the Earth's gravitational force

43. Equalizer (abbr.)

44. Akin to an EE, CE, AE, etc.

45. Chemical symbol for niobium

47. The Microwave Office software company, now NI (abbr.)

49. Chemical symbol for einsteinium

50. Type of memory

52. Opposite of a LO

53. Chemical symbol for helium

54. System On Chip

55. Unit of length (abbr.)

56. MS's server-side script engine for dynamically-generated web pages (abbr.)

57. Amateur radio abbreviation for the Oceania region (abbr.)

58. Read-only (abbr.)

59. Unit of inductance (abbr.)

60. The "E" in FET

63. Type of component package (abbr.)

65. 1E6 nanoseconds

67. Orthogonal frequency-division multiplexing (abbr.)

69. Printer resolution abbreviation

70. Image file format name extension

72. Very small aperture terminal

74. Temporary Engineering Change document (abbr.)

75. An abbreviation for "transmitter"

76. Most protruding part of planetary rings as seen from distance

78. Resistive component of a capacitor's lumped element model (abbr.)

79. Type of logic gate

80. A measure of receiver quality (abbr.)

81. Chemical symbol for terbium

83. Chemical symbol for rhodium

85. Chemical symbol for silicon

86. Do a total memory transfer

88. Network configuration type

90. A three-terminal power semiconductor device noted for high efficiency and fast switching (abbr.)

91. Use a systematic approach to locate the cause of a fault in an electronic circuit or system

1. Device under test (abbr.)

2. Foot/12

3. Chemical symbol for iron

4. BS__ - the degree held by many RF Cafe visitors

5. Stock symbol for Raytheon

6. IC killer (abbr.)

7. Chemical symbol for nickel

8. Band between RF and BB

9. Automated universal inductance tester - watch that 3rd letter, (abbr.)

10. Family of ICs with a certain component density level (abbr.)

11. PCB interconnect

15. Configure a switch to make electrical contact

17. Discoverer of the dark absorption lines (named after him) in the sun's spectrum

19. The "I" in IP2 and IP3 (pl.)

21. Creating a signal for injection into a system

23. Mass of an element

25. Sound frequency in the human hearing range (acr.)

27. Chemical symbol for gold

28. Cellphone band below PCS

29. Communication between stations by reflecting the radio waves off of the ionosphere

30. Akin to an EE, CE, AE, etc.

31. Related to FM by a differential

33. Electromagnetic (abbr.)

36. "Calling any amateur radio station"

39. Type of cryptographic algorithm that takes a string and converts it to a numeric code

41. Counter ElectroMotive Force (abbr.)

42. Mechanical engineering organization (acr.)

43. Nuclear explosion byproduct harmful to electronic (abbr., pl.)

46. Chemical symbol for beryllium

48. Write-Once (abbr.)

51. Unix, Linux or Windows (abbr.)

52. Chemical symbol for holmium

58. Device attached to an antenna mast which rotates it so that the antenna can point in different directions

59. Home state of Los Alamos lab (abbr.)

61. Type of digital filter (abbr.)

62. Early computer display screen resolution (abbr.)

64. 1e3 uV

66. Remove insulation from a wire

68. Type of current

69. Decimeter (abbr.)

71. Start frequency (abbr.)

73. Chemical symbol for selenium

75. Transformer, abbr.

77. The constellation in which Canopus is located

80. Mate to a bolt

81. Logic family (abbr.)

82. The UK's largest defense electronics contractor (acr.)

84. Heterojunction Bipolar Transistor

87. Chemical symbol for polonium

88. Chemical symbol for antimony

89. Type of flip-flop

90. Galilean moon

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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Science & Engineering Crossword Puzzle Solution for September 20, 2015 - RF Cafe

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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 nice lady's voice announced "You've Got Mail" when a new message arrived...

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