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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 Crosswords 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.

2020 | 2019 | 2018 | 2017 | 2016 | 2015 | Sudoku

December 27

December 20

December 13

December 6

November 29

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

Qorvo / Custom MMIC CMD310C3 Subharmonic Mixer - RF Cafe MPDevice microwave devices - RF Cafe
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