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RF Cafe Engineering & Science Crossword Puzzle
May 17, 2020

Beginning in the year 2000 and running through today, May 17, 2020, I have been creating weekly custom technology-themed crossword puzzles for the brain-exercising benefit and pleasure of RF Cafe visitors who are fellow cruciverbalists. 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, familiar company names 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

Engineering & Science Crossword Puzzle May 17, 2020 - RF Cafe

<click for full size to print>

1. Method of sending high-speed digital signals on electric distribution wires, a Ham's nemesis (abbr.)

4. Generally, the region of the radio spectrum above 1 GHz (pl.)

12. Abbreviation for acknowledge (also a common word used by Bill the Cat)

15. Amateur Radio Association (abbr.)

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

17. Digital Enhanced Cordless Telephone

18. Be behind in phase

19. Greek letter used for resistance (pl.)

20. With 25 Across, part of this website's title

22. Metal or plastic rod that connects a potentiometer wiper to a knob (pl.)

23. Logarithmic ratio (abbr.)

24. Chemical symbol for silver

25. With 20 Across, part of this website's title

27. Type of logic gate

28. Type of current flow (abbr.)

29. User Datagram Protocol

31. Enhanced Graphics Adapter

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

35. Electronics Industry Association (abbr.)

36. Mr. Gauss' first name

38. What do mathematicians call an angle having more than 180 degrees but less than 360

41. Lacing ____, for bundling cables

42. First-in, first-out, abbr.

44. Chemical symbol for strontium

45. Programmable logic device type (abbr., pl.)

47. Wavelength division multiplexing (abbr.)

48. Electric enclosure standard organization (abbr.)

49. An ellipse has two of them

50. Type of data conversion device (abbr.)

51. Light ray

52. Switch position

54. Solid state power amplifier (abbr.)

56. 10^12 bits per second (abbr.)

58. Integrate data onto a carrier wave

61. Solid state power amplifier (abbr.)

63. End of Life (abbr.)

64. Network file transfer protocol (abbr.)

65. Half of DSB

67. Programmable logic device (abbr.)

68. Chemical symbol for copper

69. 1e-6 mA

70. Mate to a bolt (pl.)

73. Chemical symbol for ruthenium

75. Chemical symbol for dysprosium

76. Diac that can be turned back off (pl.)

78. Front edge of a wing (abbr.)

79. Unit of capacitance (pl.)

80. Charged particle

81. Counter ElectroMotive Force (abbr.)

83. Positive emitter-coupled logic (abbr.)

84. Electronics Industry Association (abbr.)

86. Type of logic gate (pl.)

87. Decreases in magnitude

88. Type of high speed Internet service (abbr.)

1. Stock symbol for Boeing

2. A receiver circuit consisting of a beat frequency oscillator and additional circuitry for enhanced reception of SSB signals (2 wds.)

3. Greek letter used for wavelength

4. 1000000 prefix

5. A false signal produced in a superheterodyne receiver's circuitry

6. Hz

7. Type of flip-flop

8. Analog-to-Digital (abbr.)

9. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr., pl.)

10. Reflected radar or sonar signal (pl.)

11. Network configuration type

12. Brightest star in the Aquila constellation

13. Mathematical calculation of RF component string. as done by the renown RF Cafe spreadsheet Workbook using these two words

14. Mass unit (abbr.)

20. Chemical symbol for radium

21. Small unit of capacitance (abbr.)

25. Software engineering tool (abbr.)

26. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)

30. Rate of a radar transmitter's output waveform (abbr.)

32. Rubber or plastic donut-shaped insert for protecting pass-through wires

34. Lays bare, such as a wire

35. Electrical overstress (abbr.)

37. Geometric entity with only length (pl.)

39. Start frequency (abbr.)

40. Chemical symbol for lawrencium

41. Abruptly limit amplitude of a signal (pl.)

43. Finite Element Analysis (abbr.)

46. Automatic Calibration System (abbr.)

51. Method of sending high-speed digital signals on electric distribution wires, a Ham's nemesis (abbr.)

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

53. Chemical symbol for nobelium

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

57. Potentiometer manufacturer in Riverside, CA

59. Silicon transistor type (abbr.)

60. Satellite TV system

62. Added an attenuator

64. Crystal face

66. Securing device

69. Forerunner to NASA

71. Electrical safety organization (abbr.)

72. Test equipment (abbr.)

74. Internet addresses

77. Surface Mount Technology

79. Semiconductor device type (abbr.)

80. Galilean moon

82. Chemical symbol for iron

83. Last stage in a transmitter (abbr.)

85. Chemical symbol for aluminum

See solution below


2020 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


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 27

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Thanksgiving Day

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