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RF Cafe Engineering & Science Crossword Puzzle
October 20, 2019

For two decades, I have been creating custom engineering- and science-themed crossword puzzles for the brain-exercising benefit and pleasure of RF Cafe visitors who are fellow cruciverbalists. This October 20, 2019, puzzle uses a database of thousands of words which I have built up over the years and contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, etc. You will never find a word taxing your knowledge of a numbnut soap opera star or the name of some obscure village in the Andes mountains. You might, however, encounter the name of a movie star like Hedy Lamarr or a geographical location like Tunguska, Russia, for reasons which, if you don't already know, might surprise you. The jury is out on whether or not this type of mental challenge helps keep your gray matter from atrophying in old age, but it certainly helps maintain your vocabulary and cognitive skills at all ages.

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cruciverbalist: [noun] cruci- ("cross") +‎ verbal ("words") +‎ -ist ("agent, person") -- A person who constructs or works crosswords.

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

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

Engineering & Science Crossword Puzzle October 20, 2019 - RF Cafe

1. Object orientated programming term

5. Conductor with enamel insulation

11. C# statement that ensures Dispose is called even if an exception occurs

15. Chemical symbol for gold

16. International phonetic alphabet letter "K"

17. A common battery cell size

18. Type of logic gate

19. Apollo 11 astronaut ____ Armstrong

20. Stock symbol for Boeing

21. Chemical symbol for neon

22. Type of current

24. An abbreviation for "receiver"

25. Chemical symbol for argon

26. Network department (abbr.)

28. Printed Wiring Board (abbr.)

30. Chemical symbol for einsteinium

31. Chemical symbol for lithium

32. Type of data conversion device (abbr.)

33. Chemical symbol for argon

35. Chemical symbol for selenium

36. Unit of capacitance (pl.)

37. Chemical symbol for selenium

38. Chemical symbol for lithium

39. Keyboard key

41. Parts _____

44. Unit of time

46. Ham's code for "The net has traffic for you. Stand by."

47. Erbium Doped Fiber Amplifier (abbr.)

49. Type of file operation error

52. Study for a test just before taking it

53. Radio-Electronics-Television Manufacturer's Association

54. Armored cable type

55. Undesirable background information

56. A star that suddenly becomes much brighter and then gradually returns to its original brightness over a period of weeks to years

59. Solid of rotation

60. Parameter that is a figure of merit for receiver performance in presence of multiple signals (abbr.)

63. Automatic network analyzer (abbr.)

64. ____ Logic: Name give to devices surrounding and assisting processors

66. Type of unidirectional antenna

69. Electrical overstress (abbr.)

70. Front edge of a wing (abbr.)

71. 1E6 nanoseconds

72. Overall functional unit

75. A BPF specification (abbr.)

77. Morse Code for "from"

78. Person responsible for program spending (abbr.)

79. Chemical symbol for lanthanum

81. Mass unit (abbr.)

82. Crystal filter type (abbr.)

84. Unit for 1,000,000 watt-seconds (abbr.)

85. One port of an amplifier

86. Slang for helicopter

87. Intel x86 command for " jump if above"

88. Read-only (abbr.)

89. Intermodulation (abbr.)

91. Circuit path with very high or infinite impedance

93. Galilean moon

94. PC follower

96. Wheel attachment point

98. Opposite of O.D.

99. Parameter that is a figure of merit for receiver performance in presence of multiple signals (abbr., pl.)

100. Kilohertz

101. _____-Carlo analysis

1. Mathematical calculation of RF component string (2 wds.)

2. Chemical symbol for lutetium

3. Term for asymmetry of a statistical distribution (pl.)

4. Chemical symbol for silicon

5. Creates a code version of a semiconductor device

6. Chemical symbol for gallium

7. _____ Microwave East (part of L3-Com), RF component manufacturer located in Hauppauge, NY

8. One of the Ws in WWW

9. Infrared (abbr.)

10. Mr. Fermi's first name

11. Schema for computer or device presentation to the operator (abbr.)

12. _____ rule, a 1950s engineer's tool

13. Chemical symbol for niobium

14. GaAs (2 wds.)

21. Chemical symbol for neptunium

23. Chemical symbol for cesium

25. Chemical symbol for aluminum

27. Chemical symbol for scandium

29. 10 decibels

32. Airport Surveillance Radar (abbr.)

34. Positive voltage lead color

38. Low Noise Amplifier (abbr.)

40. 30 kHz to 300 kHz

42. Microprocessor vendor

43. PCB interconnect

44. Unit of inductance

45. C# statement that ensures Dispose is called even if an exception occurs

46. Type of matrix barcode used with laser scanning(abbr.)

48. Amateur Radio Association (abbr.)

50. Antenna gain unit (abbr.)

51. Stock symbol for Texas Instruments

52. World's largest yearly convention of gadget and device manufacturers (abbr.)

57. Exponent that returns the original number

58. Unit of apparent power (abbr.)

61. Chemical symbol for iron

62. U.S. military organization (abbr.)

64. Global System for Mobile Communications (abbr.)

65. Channel used for earth-to-satellite communications

67. Aluminum Gallium Arsenide

68. Bands between RF and baseband

71. One axis of an ellipse

73. A major search engine

74. World's 1st fully electronic digital computer (abbr.)

76. Monte-_____ analysis

78. Centimeter (abbr.)

80. Army-Navy specification prefix

81. Unit for 1,000 watt-seconds (abbr.)

83. Write-Once (abbr.)

90. 300 kHz to 3 MHz

92. Unit of time (abbr.)

93. S12 or S21 (abbr.)

95. Chemical symbol for thallium

97. Electromagnetic (abbr.)

98. Network department (abbr.)

See solution below

2019 Crossword Puzzle Archive

Take 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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RF Cafe Engineering & Science Crossword Puzzle October 20, 2019

RF Cafe Engineering & Science Crossword Puzzle
October 20, 2019