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RF Cafe Science & Engineering Crossword Puzzle
April 12, 2020

Working crossword puzzles can be contagious. This April 12, 2020, tech-themed crossword puzzle may even go viral. It contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, etc., which I have personally built over nearly two decades. That includes the cause for our planet's current dilemma. 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 April 12, 2020 - RF Cafe

DOWN
1. Bill's famous OS
2. Electrical safety organization (abbr.)
3. Asynchronous Digital Subscriber Line (abbr.)
5. Output intercept point (abbr.)
6. Infrared (abbr.)
7. Reducing in amplitude
11. Device for translating higher frequencies to lower frequencies (sometimes hyphenated, pl.)
12. Device that increase the frequency band of a receiver
14. Cyanide (abbr.)
18. Electromagnetic interference (abbr.)
24. Describes many engineers' current plight worldwide due to 1 Across + 35 Across
25. Satellite of Jupiter discovered by Galileo
31. Electromotive force (abbr.)
32. Rapid variation in the signal strength of a station, usually due to propagation variations
36. 30 kHz to 300 kHz
39. Logical gate type (pl.)
42. Color quality
45. Write-Once (abbr.)
46. Chemical symbol for tantalum

 

 

 

 

 

 

 

 

 

ACROSS
1. _____ + 35 Across is causing many engineers to be 24 Down
4. _____-19, contagion first identified in Wuhan, China
8. S12 or S21 (abbr.)
9. One component of a complex number (abbr.)
10. Chemical symbol for cesium
11. Add an impurity to a semiconductor
13. Type of current
15. Constellation : The lion
16. Type of logic gate
17. Exponent that returns the original number
19. Type of antenna with an element made of a single, flexible rod or tube
20. A type of average
21. Semiconductor On Insulator (abbr.)
22. Number of clock cycles in an event
23. Permeability-tuned oscillator (abbr.)
24. Coordinated Universal Time (abbr.)
26. Current summing point
27. Ad-hoc on demand distance vector (abbr.)
28. Slang for transmitter and/or receiver
29. Last statement in a BASIC program
30. Transistor B-C capacitance
31. 30 Hz to 300 Hz
33. Adjust
34. Real estate where equipment is located
35. 1 Across + ___ is causing many engineers to be 24 Down
37. One port of an amplifier
38. Stock symbol for Raytheon
40. Unit of length (abbr.)
41. Unit of resistance (pl.)
43. Unix, Linux or Windows (abbr.)
44. Modern battlefield technique (abbr.)
46. Test equipment (abbr.)
47. Weatherproof cover for a radar antenna (pl.)
48. International phonetic alphabet letter "O"

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 April 12 - RF Cafe

Windfreak Technologies ConductRF Precision RF Test Cables - RF Cafe
Res-Net Microwave - RF Cafe Berkeley Nucleonics Academy - RF Cafe
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    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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