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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...

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RF Cafe Engineering & Science Crossword Puzzle
January 5, 2020

As with my hundreds of previous engineering and science-themed crossword puzzles, this first one of the new decade, January 5, 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 January 5, 2020 - RF Cafe 

<click for full size to print>

ACROSS DOWN
1. __________ & __ magazine (1 wd. + 1 abbr.)

8. Einstein's paradoxical traveler

9. Chemical symbol for iron

11. Effective Radiated Power (abbr.)

12. Special diode type that can be switched (abbr.)

14. Junk e-mail

17. Chemical symbol for selenium

19. __ + 20 Across is this website's title

20. 19 across + ____ is this website's title

22. Adjustment dial

24. PC follower

26. Airfoil shapers

28. Relating to the sun

29. Microprocessor vendor

31. Cause a voltage or current waveform to gradually die out

33. Chemical symbol for nickel

34. Type of data storage IC (abbr.)

36. Elemental compound used for microwave frequency reference oscillators (abbr., pl.)

38. A common battery cell size

39. Million samples per second

41. Oscillator type that is referenced to an external source (abbr., pl.)

43. 1e3 uV

45. Describes when a synchronous motor loses phase lock

47. High power density battery chemistry (abbr.)

49. Chemical symbol for magnesium

51. A length of transmission line that is open or shorted at one end

53. Control and monitoring board

54. Number system which uses only the digits 0 to 7

56. Official engineering change document (abbr., pl.)

58. One component of a complex number (abbr.)

59. Set of poles

61. Unit of resistance (abbr.)

63. Intel x86 command for " jump if above"

64. Chemical symbol for silicon

66. Miniature threaded RF connector (pl.)

67. Chemical element abbreviated Sn

68. Compressed image file format

69. Min-to-max voltage of a waveform (abbr.)

72. Send a wireless to an early hip-worn wireless device

73. Cause of a decrease in signal amplitude (pl.)

1. www.____.com is the URL for 1 Across

2. Input intercept point (abbr.)

3. Cyanide (abbr.)

4. International phonetic alphabet letter "O"

5. Type of current flow (abbr.)

6. Electronically images a document

7. Small unit of capacitance (abbr.)

8. Device used to provide a complex conjugate impedance match to the end of a transmission line (pl.)

10. Chemical symbol for einsteinium

12. Chemical symbol for scandium

13. The "D" in RFID (pl.)

15. Max or min voltage of a waveform (abbr.)

16. Earth's natural satellite

18. Common point on a BJT curve trace graph where the extrapolated linear operating regions all intersect (2 wds.)

21. Online auction site

23. Target indication on a radar display

24. Test document for verifying proper function (abbr.)

25. Short for terminal

27. Internet mail protocol (abbr.)

30. Signal amplitude degradation due to inefficiency

32. Query an input for changes

35. Multiprotocol Label Switching (abbr.)

37. Describes when a synchronous motor loses phase lock

40. Real estate where equipment is located

42. Longitudinal shape-forming structural element

44. Internet mail protocol (abbr.)

46. Isolator or circulator ferrous component

48. Exponent that returns the original number

50. High frequency semiconductor (abbr.)

52. Turn on the computer

55. Restrain voltage input

57. The "S" in ASK

60. Chemical symbol for radium

62. Chemical symbol for manganese

63. Compressed image file formats

65. Internet protocol (abbr.)

68. Prefix used on many MIL-SPEC components

70. Last stage in a transmitter (abbr.)

71. Upper frequency (abbr.)

72. Chemical symbol for polonium


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 January 5, 2020 - RF Cafe

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