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About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024

Webmaster:

    Kirt Blattenberger,

    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...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

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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 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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Engineering & Science Crossword Solution April 12 - RF Cafe

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