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RF Cafe Engineering & Science Crossword Puzzle

February 24, 2019

Beginning in 2000, I have created hundreds of 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 February 24, 2019

1. Computer messaging service (pl.)

5. Cable television (abbr.)

9. Very large unit of apparent power (abbr.)

10. Part of this website's title

11. Type of inductance found in transformers

13. A common battery cell size

14. RF connector type

15. Amateur Teleprinter Over Radio (abbr.)

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

18. RF ____, the world's best engineering website

19. Mate to a TX

20. Chemical symbol for manganese

21. Chemical symbol for cadmium

22. Unit of time (abbr.)

23. A vector quantity (typically a complex number) representing a sinusoidally varying current or voltage (pl.)

26. Precision approach radar (abbr.)

29. Local Oscillator (abbr.)

30. The "E" in EMF

33. Chemical symbol for silicon

34. Type of data conversion device (abbr.)

36. Joins together

40. Frequency Division Duplex

42. Gun safety and education organization (abbr.)

43. Conduction of electricity across the surface of a dielectric

45. Half of DSB

47. Max or min voltage of a waveform (abbr.)

50. Linear operation area of transistor curve (2 wds. pl.)

53. PC follower

55. Keyboard key

56. Prevent the direct physical transfer of signals from one point to another

58. Filter type that blocks frequencies in a specified band (abbr.)

59. Network department (abbr.)

60. Chemical symbol for zinc

61. Electromagnetic (abbr.)

62. The Wright Flyer had an upper one and a lower one

63. Infrared (abbr.)

64. Ethoxyethane

67. Mr. de Forest's first name

68. European equivalent to the U.L.

69. Unit of current

71. One port of an amplifier

72. Electrical overstress (abbr.)

74. Multiprotocol Label Switching (abbr.)

75. Electric coronal discharge (pl.)

1. 1.602E-19 Joules

2. Join a male and a female connector

3. International Reply Coupon (abbr.)

4. 30 kHz to 300 kHz

5. Describes the action of cleaving a crystal plane

6. Molecular building blocks

7. Another word for each complete winding of an inductor

8. Unit of apparent power (abbr.)

9. Stephen ____ - popular author on microwave circuit design

11. Unit of length (abbr.)

12. On a waveform, a _____ min or max

13. An angle that has less than 90 degrees

15. RF IC manufacturer located in Dübendorf, Switzerland

17. Optical storage medium

19. Chemical symbol for radium

24. Paper printout of a document (pl. 2 wds.)

25. Time to spend your 401k plan

27. Small representative graphic

28. Large unit of apparent power (abbr.)

31. Unix, Linux or Windows (abbr.)

32. Erbium Doped Fiber Amplifier (abbr.)

35. CDMA Development Group (abbr.)

36. Cyanide (abbr.)

37. Type of logic gate (pl.)

38. American space agency (abbr.)

39. Chemical symbol for scandium

41. Morse Code for "from"

44. Set of poles

46. Digital pattern coding type

48. Kilovolts (abbr.)

49. Half of the diameter (pl.)

51. Swiss mathematician who extensively studied complex numbers

52. Sudden, short-lived increase in voltage or current

54. Trans European Trunked RAdio

56. Microprocessor vendor

57. Modulation type (abbr.)

58. Low- to mid- frequency connectors

60. Antenna type derived from simple weighted wires dropped from Zeppelin airships

62. 5 work days

65. Stock symbol for Harris Communications

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

67. Low Noise Amplifier (abbr.)

70. Unit of length (abbr.)

71. Internet protocol (abbr.)

73. Unix, Linux or Windows (abbr.)

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.

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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.

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RF Cafe Engineering & Science Crossword Puzzle Solution February 24, 2019

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