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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

February 3, 2019

Each week, for the sake of all avid cruciverbalists amongst us, I create a new technology-themed crossword puzzle using only words from my custom-created lexicon related to engineering, science, mathematics, chemistry, physics, astronomy, etc. You will never find among the words names of politicians, mountain ranges, exotic foods or plants, movie stars, or anything of the sort. You might, however, see someone or something in the exclusion list who or that is directly related to this puzzle's theme, such as Hedy Lamarr or the Bikini Atoll, respectively. Enjoy!

cruciverbalist: [noun]  cruci- ("cross") +‎ verbal ("words") +‎ -ist ("agent, person") -- A person who constructs 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 February 3, 2019

ACROSS DOWN
1. French scientist after whom the unit of current is named (3 wds.)

13. Type of modulation (abbr.)

14. Common shorthand reference for a capacitor

15. Tweak a filter for the correct response

17. Home state of Los Alamos lab (abbr.)

22. Color quality

24. Chemical symbol for silver

25. Electrically charged region of the Earth's atmosphere located approximately 40 to 400 miles above the Earth's surface that refracts radio signals

31. Threaded fastener

33. Internet protocol (abbr.)

34. U.S. Spectrum allocation agency

36. Ham's code for "Can you acknowledge receipt?"

38. Chemical symbol for nickel

39. 1E6 nanoseconds

41. Used logic gates

43. Chemical symbol for gadolinium

45. Type of capacitors

47. Chemical symbol for praseodymium

48. Mr. Packard's (HP) first name

49. 1/000 of an amp (abbr.)

50. Chemical symbol for lanthanum

51. Gasoline, diesel, etc. (pl.)

52. Chemical symbol for einsteinium

53. Time taken for half the atoms of a radioactive sample to decay (hyph.)

55. Type of current

56. Stock symbol for Yahoo

58. Chemical symbol for selenium

59. European equivalent to the U.L.

60. FCC's Universal Licensing System (abbr.)

62. Mr. Piper's famous yellow airplane

64. Unit of time (abbr.)

65. Co-channel rejection ratio (abbr.)

67. Plane figure that has four straight sides, and four right angles (pl.)

71. Radio signals from the cosmos (abbr.)

72. Last statement in a BASIC program

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

75. IC socket type for easy insertion & removal (abbr., pl.)

78. Transmit Incremental Tuning (abbr.)

81. Chemical symbol for nobelium

83. Part of a directive antenna that derives energy from mutual coupling with the driven element (2 wds.)

2. A measure of receiver quality (abbr.)

3. Decimeter (abbr.)

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

5. Type of current flow (abbr.)

6. Increase voltage linearly

7. Internet protocol (abbr.)

8. PC follower

9. Greek letter (micro)

10. Silicon transistor type

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

12. Semiconductor company based in Norwood, MA (2 wds.)

16. Ionized trails of meteors used as a reflecting media (2 wds.)

18. Chemical symbol for magnesium

19. Thin metallic shield material around coax cable

20. Local Oscillator (abbr.)

21. Front edge of a wing (abbr.)

22. Sample-and-____

23. Electrical safety organization (abbr.)

26. Chemical symbol for neptunium

27. Archimedes is one type of this geometric shape (pl.)

28. High-speed multimedia (abbr.)

29. Part of this website's title

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

32. "Calling any amateur radio station"

35. Chemical symbol for chromium

37. Type of chart used to plot immittance

38. Electric enclosure standard organization (abbr.)

40. A common semiconductor substrate

42. Exactly the same in mathematics

44. 10E1 numerical prefix (pl.)

46. RF ____, the world's best engineering website

47. Programmable Logic Device (abbr.)

53. Unit of time

54. 12 inches (pl.)

56. 36 inches

57. Amateur radio abbreviation for the Oceania region (abbr.)

60. A compiler directive

61. Type of component package (abbr.)

63. Chemical symbol for beryllium

64. Electrical safety organization (abbr.)

66. Cyanide (abbr.)

68. Chemical symbol for californium

69. Application Specific Integrated Circuit (abbr.)

70. Chemical symbol for gallium

71. Electromagnetic (abbr.)

73. Electronics Industry Association (abbr.)

75. Chemical symbol for zirconium

76. Start frequency (abbr.)

77. Chemical symbol for silicon

78. Greek letter

79. Test equipment (abbr.)

80. Morse Code for "from"

81. Chemical symbol for neon

82. Switch position


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 Solution February 3, 2019

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