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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 tying 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.

My Hobby Website:

AirplanesAndRockets.com

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RF Cafe Engineering & Science Crossword Puzzle
April 21, 2019

Since 2000, I have been creating custom technology-themed crossword puzzles for the brain-exercising benefit and pleasure of RF Cafe visitors who are fellow cruciverbalists. The jury is out on whether or not this type of mental challenge helps keep your gray matter from atrophying in old age, but it certainly helps maintain your vocabulary and cognitive skills at all ages. A database of thousands of words has been built up over the years and contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, etc. 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

RF Cafe Engineering & Science Crossword Puzzle Easter Day, 2019

<click for full size to print>

ACROSS DOWN
1. A system of digital communication whereby information is transmitted in short bursts (2 wds.)

9. Amateur radio enthusiast

10. Unit of time (abbr.)

11. One type of electron spin

12. Mr. Piper's famous yellow airplane

14. Chemical symbol for aluminum

15. Chemical symbol for helium

17. __ + 28 Down - this website's name

18. Chemical symbol for tantalum

20. Reflected radar or sonar signal (pl.)

24. Attenuator (pl.)

27. U.S. military organization (abbr.)

28. 17 Across + ____, the world's best engineering website

30. Type of antenna (pl.)

32. The largest asteroid

33. Akin to an EE, CE, AE, etc.

34. Chemical symbol for neon

35. Association of North American Radio Clubs

40. Greek letter, used to indicate summation

44. One bit of a real number

45. Error checking scheme (abbr.)

47. This calculus operation yields voltage across a capacitor

48. Moves from cell to cell

50. BS__ - the degree held by many RF Cafe visitors

52. Intel x86 command for " jump if above"

53. Chemical symbol for lead

54. Local Oscillator (abbr.)

55. Common average used for sinewaves (abbr.)

57. Chemical symbol for magnesium

59. Chemical symbol for gadolinium

60. ELI the ICE ___

61. Emitting a radio wave

1. Programmable logic device (abbr.)

2. Modulation type (abbr.)

3. Sharp bend in I-V curve

4. Chemical symbol for einsteinium

5. Chemical symbol for ruthenium

6. Automatic Packet Position Reporting System (abbr.)

7. Multifunctional silicon devices (abbr.)

8. One port of an amplifier

9. A message to you for today's date, being the first Sunday after the first full moon occurring on or after the vernal equinox

13. Cell tower electronics

16. Unit of admittance (pl.)

19. CDMA Development Group (abbr.)

21. Chemical symbol for cadmium

22. Opposite of I.D.

23. Precision approach radar (abbr.)

25. A common battery cell size

26. Chemical symbol for silicon

28. European equivalent to the U.L.

29. Chemical symbol for iron

31. Miniature RF connector

32. World's largest yearly convention of gadget and device manufacturers (abbr.)

36. Chemical symbol for nickel

37. Feedback system used to maintain constant signal level (abbr.)

38. Chemical symbol for radon

39. Study for a test just before taking it

41. Opposite of O.D.

42. Image file format name extension

43. Chemical symbol for mendelevium

45. Chemical symbol for cobalt

46. Centimeter (abbr.)

48. Increase voltage linearly

49. Switch configuration (abbr.)

51. Nuclear explosion byproduct harmful to electronics (abbr.)

54. Be behind in phase

56. Chemical symbol for strontium

58. Chemical symbol for gallium

59. Chemical symbol for gallium

60. Chemical symbol for manganese


See solution below

 

2019 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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RF Cafe Engineering & Science Crossword Puzzle Easter Day, 2019

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