RF Cafe Science & Engineering Crossword Puzzle
March 1, 2020

As with my hundreds of previous science and engineering-themed crossword puzzles, this one for March 1, 2020, contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, etc., which I have built up over nearly two decades. Many new words and company names have been added that had not even been created when I started in the year 2002. 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 March 1, 2020 - RF Cafe 

<click for full size to print>

ACROSS DOWN
1. Cable used for interconnecting laboratory equipment (2 wds.)

9. Charged particle

11. A complete set of data bits in a stream

17. Coder/decoder (abbr.)

18. Computer monitor resolution measure (abbr.)

20. Unit of electrical charge

22. Type of logic gate

23. Angle described by hyp/adj

25. Radio Amateurs of Canada (abbr.)

26. S12 or S21 (abbr.)

28. High Data Rate

29. Opposite of output

30. Maximum Usable Frequency

32. Solid state power amplifier (abbr.)

34. Ground fault interrupter (abbr.)

37. Majority carrier in p-type material

39. Ham's code for "Shall I send more slowly?"

41. Request for information from a database

42. Most positive element in a vacuum tube

45. Attenuator

46. Chemical symbol for arsenic

47. Stock symbol for Raytheon

50. Precision landing system (abbr.)

51. Temporary Engineering Change document (abbr.)

53. Electronics manufacturer with "meatball" logo

54. Configuring a switch to make electrical contact

55. Its unit symbol is G

56. Ratio of filter's stopband bandwidth (usually 60 dB) to its passband bandwidth (usually 3 dB) (2 wds.)

62. Intentionally blocking communications signals

66. Unit of capacitance (abbr.)

68. Enhanced Graphics Adapter

69. Constellation : The lion

71. ___-AZIMUTH telescope mount

72. Type of flip-flop

73. Government program to bring electricity to farms (abbr.)

75. Sets of poles

76. Heat-resistant glass type

78. A keyboard key

80. An abbreviation for "receiver"

83. Shorthand for liquid oxygen

85. Filter types (abbr., pl.)

86. Type of e-mail address system (abbr.)

88. Negatively charged ion

91. Finite Element Analysis (abbr.)

92. A measure of receiver quality (abbr.)

95. Software drafting tool (abbr.)

96. Common platform for synthetic aperture radar (pl.)

98. Chemical symbol for holmium

99. CB slang for "affirmative" (2 wds., hyph.)

103. The cell band above DCN

104. Type of high-tech data gathering system (abbr.)

107. Another word for each complete winding of an inductor (pl.)

108. 10 decibels

109. Plane figure that has four straight sides, and four right angles

2. Type of current flow (abbr.)

3. Unit of weight

4. Chemical symbol for cadmium

5. Part of a screw that engages the driver (pl.)

6. Co-channel rejection ratio (abbr.)

7. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)

8. Quantum electron property (pl.)

10. Unix, Linux or Windows (abbr.)

11. Name of the fixed point from which the distances to any point on a parabola are connected by a linear relation

12. Chemical symbol for ruthenium

13. Circuit for maintaining constant voltage (abbr.)

14. Chemical symbol for molybdenum

15. Electromagnetic interference (abbr.)

16. Type of source used by a Norton equivalent circuit (2 wds.)

18. Greek letter

19. Indium phosphide (abbr.)

20. Person responsible for program spending (abbr.)

21. Large-value component connected across the filter capacitor in a power supply to discharge the filter capacitors when the supply is turned off (2 wds.)

24. Greek mathematician who wrote the book "Elements of Geometry"

27. Stock symbol for Hewlett Packard

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

33. Ham radio organization (abbr.)

34. Type of microwave diode

35. International Reply Coupon (abbr.)

36. National Television System Committee (abbr.)

38. Be behind in phase

40. What a capacitor is used for regarding energy

43. Arithmetic Logic Unit (abbr.)

44. _______ strength - measure of resistance from breaking

48. Unit of time (abbr.)

49. Its chemical symbol is B

51. Chemical symbol for tantalum

52. Unit of volume (abbr.)

57. Chemical symbol for helium

58. Last stage in a transmitter (abbr.)

59. Area on a shaft for accommodating a setscrew

60. Anatech Electronics Inc., (abbr.)

61. Plasma atmosphere layer of the sun

63. Highest point

64. 1/000 of an amp (abbr.)

65. Transportation accident investigation agency (abbr.)

67. Method of self-detection and self-fixing transmission of digital data (abbr.)

70. Amateurese for "wife"

74. Capacitor manufacturer

77. Do like a vector with a changing angle

79. Hz

81. Curve formed by a point which moves according to a mathematically defined rule

82. It is required to causes a change in the motion of a body

84. Nikola _____

87. Precision approach radar (abbr.)

89. Input intercept point (abbr.)

90. Silicon transistor type (abbr.)

91. 12 inches (pl.)

93. Semiconductor device type (abbr.)

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

97. Ham's code for "Take over as net control station."

100. Greek letter used for frequency

101. Switch position

102. Chemical symbol for xenon

105. One port of an amplifier

106. Chemical symbol for thallium


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.

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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 27

December 20

December 13

December 7

November 29

Thanksgiving Day

November 22

November 15

November 8

November 1

October 25

October 18

October 11

October 4

September 27

September 20

September 13

September 6

August 30

August 23

August 16

August 9

August 2

July 26

July 19

July 12

July 5

June 28

June 21

June 14

June 7

May 31

May 24

May 17

May 10

May 3

April 26

April 19

April 12

April 5

March 29

March 22

March 15

March 8

March 1

February 23

February 16

February 9

February 2

January 26

January 19

January 12

January 5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Engineering & Science Crossword Solution March 1, 2020 - RF Cafe