RF Cafe Engineering & Science Crossword Puzzle
March 10, 2019

Since 2000, I have been creating custom technology-themed crossword puzzles for the brain-exercising benefit and pleasure of RF Cafe visitors who are fellow cruciverbalists. 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. A database of thousands of words has been 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.

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

RF Cafe Engineering & Science Crossword Puzzle March 10, 2019

ACROSS DOWN
1. Adjective describing a device that requires an applied voltage to operate

8. Ratio of white to black on a CRT

13. Exponent that returns the original number

14. Hewlett's partner

17. Discipline for aircraft navigation in low visibility environments (abbr.)

18. The computer in 2001: A Space Odyssey

20. Chemical symbol for terbium

22. Chemical symbol for molybdenum

23. Radio signals from the cosmos (abbr.)

24. __ + 31 Across: The world's greatest engineering website

25. Unit of liquid measure (abbr., pl.)

27. Release control over

29. Service of the ARRL that helps hams solve technical problems (abbr.)

31. 24 Across + ____: The world's greatest engineering website

33. Filter type that blocks lower frequencies (abbr.)

34. A common battery cell size

35. Miniature threaded RF connector

36. Chemical symbol for tin

37. Chemical symbol for zinc

39. Unit of length (abbr.)

40. Automatic Calibration System (abbr.)

42. Programmable Logic Device (abbr.)

44. Chemical symbol for gadolinium

46. Term used to denote transmission of sound, video, data, etc. (pl.)

47. Mass unit (abbr.)

48. Time division duplex (abbr.)

49. Digital encoding of the transmission mode in the vertical sync portion of an SSTV image (abbr.)

50. Chemical symbol for neodymium

51. Chemical symbol for magnesium

53. Unit of time (abbr.)

55. Degree of IC sophistication (abbr.)

57. European equivalent to the U.L.

58. Type of flip-flop

59. Official engineering change document (abbr., pl.)

61. Akin to EEs, CEs, AEs, etc. (abbr., pl.)

62. Multiprotocol Label Switching (abbr.)

64. Digital storage oscilloscope (abbr.)

66. Chemical symbol for arsenic

67. A common battery cell size

68. Logarithmic ratio (abbr.)

70. 1/000 of an amp (abbr.)

71. Chemical element abbreviated Sn

72. Stock symbol for Raytheon

74. Bluetooth network

77. Device under test (abbr.)

79. Fundamental electrical component w/units of ohms

80. Radio term for an unconventional frequency separation between input and output frequencies (2 wds.)

2. End of Life (abbr.)

3. Cyanide (abbr.)

4. Trans European Trunked RAdio

5. Internet protocol (abbr.)

6. Person responsible for program spending (abbr.)

7. Chemical symbol for berkelium

8. Type of computer display (abbr.)

9. Opposite of I.D.

10. Image file format name extension, (pl.)

11. "Microwaves & __" magazine

12. Automatic repeat request used in AMTOR (abbr.)

15. Commercial Off-the-Shelf

16. Active Electronically Scanned Array (abbr.)

19. Unit of current

21. Chemical symbol for beryllium

24. Chemical symbol for radium

26. Unit of frequency

27. Wear on a component due to repeated stress

28. Integrates data onto a carrier wave

30. Waveform described by a Dirac delta function

31. Half of table salt

32. Google, Yahoo, Bing, etc.

33. _____ Percy Maxim, founder of the ARRL

38. Front end of a rocket (pl.)

39. Electronics components & batteries supplier based in Japan

40. Logic family

41. Electronic component package type (abbr.)

42. Peak Inverse Voltage

43. 10E1 numerical prefix (pl.)

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

52. One state of matter

54. Electronically images a document

55. Million multiply accumulate operations (abbr.)

56. Integrated Services Digital Network (abbr.)

57. Encases in a protective covering

58. Radio frequency interference (abbr.)

60. Unix, Linux or Windows (abbr.)

63. Related to FM by a differential

65. Type of logic gate (pl.)

67. Powers pneumatic devices

69. Chemical symbol for beryllium oxide

71. Logic family (abbr.)

73. Semiconductor and calculator company (abbr.)

74. Chemical symbol for polonium

75. Switch position

76. Time delay (abbr.)

78. One type of electron spin


See solution below

 

2019 Crossword Puzzle 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.

2024 | 2023 |2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | Sudoku

Cruciverbalist:

A cruciverbalist is a person who is skilled at creating or solving crossword puzzles. The term is a combination of "cruci-" from "crucifix," meaning cross, and "verbalist" from "verbal," indicating a person who deals with words. cruciverbalists are often responsible for designing crossword puzzles, and they possess a deep knowledge of wordplay, vocabulary, and the techniques used in constructing and solving crosswords. They aim to make puzzles that are both challenging and enjoyable for crossword enthusiasts.

December 29

December 22

December 15

December 8

December 1

November 24

November 17

November 10

November 3

October 27

October 20

October 13

October 6

September 29

September 22

September 15

September 8

September 1

August 25

August 18

August 11

August 4

July 28

July 21

July 14

July 7

June 30

June 23

June 16

June 9

June 2

May 26

May 19

May 12

May 5

April 28

April 21

April 14

April 7

March 31

March 24

March 17

March 10

March 3

February 24

February 17

February 10

February 3

January 27

January 20

January 13

January 6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RF Cafe Engineering & Science Crossword Solution March 10, 2019