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RF Cafe Science & Engineering Crossword Puzzle
March 22, 2020

This March 22, 2020, tech-themed crossword puzzle contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, etc., which I have personally built 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 22, 2020 - RF Cafe 

<click for full size to print>

ACROSS DOWN
1. Hollywood actress with first patent for spread spectrum communications (2 wds.)
9. Computer monitor cable type (abbr.)
11. Does not pass electrical test
17. Aircraft tracking system
18. Wireless transmitting device that opens a car door remotely
20. Term used in soldering to describe the condition that occurs when the metals being soldered are hot enough to melt the solder so it flows over the surface
22. __ + 34 Down, this website's title
23. Type of coaxial transmission line with solid outer shielding
25. Type of data storage IC
26. Chemical symbol for radium
28. Finite Element Analysis (abbr.)
29. Fuel additive
30. A common RS-232 serial bus command (abbr.)
32. Weatherproof cover for a radar antenna
34. Carrier-to-noise ratio (abbr.)
37. Asynchronous Digital Subscriber Line (abbr.)
39. Synchronous Digital Hierarchy
41. One port on a BJT (pl.)
42. Nearest and furthest points to the center of gravitational attraction for a body in orbit (pl.)
45. Type of distribution, squared
46. Chemical symbol for cobalt
47. Key feature in a high level overvoltage protection device
50. International Microwave Symposium (abbr.)
51. Adjust a pot
53. Upper frequency (abbr.)
54. Unit of inductance (pl.)
55. Radio that both transmits and receives
56. Adjustment to meet a specification
62. Frequency band at high end of audio spectrum (pl.)
66. Part of a FOR loop
68. World's largest yearly convention of gadget and device manufacturers (abbr.)
69. Constellation : The lion
71. System On Chip
72. Unit of time (abbr.)
73. 30 GHz to 300 GHz
75. Sets of poles
76. Work out the solution to an equation
78. Type of e-mail address system (abbr.)
80. Logic family
83. BER, 8 bits at a time
85. Move in a raster pattern
86. Stock symbol for Lockheed Martin
88. Common test for verifying high voltage tolerance w/o breakdown
91. Science of assuring operation amid dense EM background noise (abbr.)
92. Opposite of I.D.
95. Total radiated power (abbr.)
96. Elements in front of the driven element in a Yagi or Quad antennas
98. Opposite of O.D.
99. Slang for Ham radio equipment made in Japan or the Orient (2 wdds.)
103. Negative temperature coefficient (abbr.)
104. Ratio of output to input power, voltage, current, light, etc. (pl.)
107. Traditional term for a person who enjoys helping newcomers get started in ham radio - a mentor
108. Short for potentiometer
109. Electromagnetic wavelength unit (pl.)
2. Chemical symbol for erbium
3. Type of data conversion device (abbr.)
4. Yard (abbr.)
5. A coherent monochrome light source
6. Length times width
7. Adjusts or tunes a circuit
8. A concern of Boolean equations
10. Chemical symbol for gadolinium
11. 10E-15 numerical prefix
12. PC follower
13. International Telecommunications Union
14. Chemical symbol for lithium
15. Signal-to-noise ratio (abbr.)
16. A receiver circuit consisting of a beat frequency oscillator and additional circuitry for enhanced reception of SSB signals (2 wds.)
18. Heatsink feature
19. The "B" in BER
20. Ham abbreviation indicating contacts with all major land masses
21. GaAs (2 wds.)
24. Form/fit/function replacement
27. Common average used for sinewaves (abbr.)
31. Type of data conversion device (abbr.)
33. Quickly changing portion of waveform
34. 22 Across + ____, this website's title
35. Government program to bring electricity to farms (abbr.)
36. Complex Instruction Set Computer
38. 3 GHz to 30 GHz
40. A radio operator’s name (pl.)
43. "Texting" (abbr.)
44. Go through the process of planned creation
48. Chemical symbol for praseodymium
49. Its chemical symbol is Ar
51. Chemical symbol for silicon
52. Test equipment (abbr.)
57. Type of current flow (abbr.)
58. Network department (abbr.)
59. RF computer network
60. Anatech Electronics Inc., (abbr.)
61. Component around which wire is wrapped to make an inductor
63. An abbreviation for "receiver"
64. Filter type that blocks frequencies in a specified band (abbr.)
65. Official engineering change document (abbr., pl.)
67. Unit of resistance
70. The "L" in VLF
74. BASIC looping keyword
77. Elementary particle
79. Peripheral Component Interface (abbr.)
81. Amateur Teleprinter Over Radio (abbr.)
82. Computer I/O interfaces; i.e., USB, serial, parallel
84. Radio Amateur Satellite Corporation (abbr.)
87. Ham abbreviation for transceiver
89. Part of a male connector
90. Temporary Engineering Change document (abbr.)
91. Unit of energy (pl.)
93. Singulated piece of IC wafer
94. Original Equipment Manufacturer (abbr.)
97. Ham's code for "Station is leaving the net."
100. Chemical symbol for chlorine
101. Chemical symbol for beryllium
102. Galilean moon
105. Infrared (abbr.)
106. Type of component package (abbr.)

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 22 - RF Cafe

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