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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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Science & Engineering Themed Crossword Puzzle
October 18th, 2020

October 18th's custom Science and Engineering Technology themed crossword puzzle contains only only words from my custom-created lexicon related to engineering, science, mathematics, chemistry, physics, astronomy, etc. (1,000s of them). 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, find someone or something in the otherwise excluded list directly related to this puzzle's technology theme, such as Hedy Lamarr or the Bikini Atoll, respectively. The technically inclined cruciverbalists amongst us will appreciate the effort.

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


Science & Engineering Themed Crossword Puzzle for October 18th, 2020 - RF Cafe

 

ACROSS DOWN
2. Man after whom the unit of frequency is named (2 wds.)

11. PC follower

12. 300 kHz to 3 MHz

13. Common average used for sinewaves (abbr.)

14. Chemical symbol for argon

16. Type of memory

19. Peripheral Component Interface (abbr.)

21. What you can get from a high voltage line

24. Unit of admittance

27. One type of electron spin

28. Ratio of circumference to diameter

29. Unit of weight

31. Multifunctional silicon devices (abbr.)

32. Type of data conversion device (abbr.)

35. Official Space Shuttle designation (abbr.)

38. Unit of typing speed (abbr.)

40. ISDN BRI channel

42. Unit of current

44. Chemical symbol for silicon

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

48. Airfoil shapers

50. Chemical symbol for tantalum

52. Part of a FOR loop

53. Indication of quality of received message

54. milliampere-hour (abbr.)

55. Point that is the same distance from every point on the circumference of a circle (British spelling)

56. Chemical symbol for gallium

58. Unit of length (abbr.)

59. Chemical symbol for cobalt

60. The ringed planet

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

63. Effect (named after its discoverer) that is the variation in the width of the base in a BJT due to a variation in the applied base-to-collector

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

67. What a capacitor is used for regarding energy

70. Chemical symbol for neon

71. One port of an amplifier

72. Half of DSB

74. Deutsche Industrie Normenausschuss

75. Chemical symbol for nickel

77. Digital intelligence

79. Sound frequency in the human hearing range (abbr.)

81. 2-way conversation, Ham term

82. Archaic term for an outdoor antenna (pl.)

83. The "N" in SNR (pl.)

1. Calibrated a meter so that it shows a value of zero when zero is being measured

2. Amateur radio operators

3. Radio signals from the cosmos (abbr.)

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

5. Part of this website's title

6. Chemical symbol for chromium

7. 1/100 meter (abbr.)

8. High-speed multimedia (abbr.)

9. Chemical symbol for radium

10. Total radiated power (abbr.)

15. 2-element, 1/2 wavelength radiating structure usually fed at the center (2 wds.)

17. Undesirable background information

18. Semiconductor device type (abbr.)

20. Chemical symbol for copper

22. Filter type that blocks lower frequencies (abbr.)

23. One type of electron spin

25. Opposite of a LO

26. Ovenized crystal oscillator (abbr.)

30. Chemical symbol for neptunium

33. A common battery cell size

34. Centimeter (abbr.)

36. PCB interconnects

37. Chemical symbol for selenium

39. Degree of IC sophistication (abbr.)

41. Surface Mount Technology

43. Positive elementary particle found in the nucleus of all atoms (pl.)

45. Big Blue

47. Switch configuration (abbr.)

49. Measured a waveform at regular intervals

51. Occlusion of one heavenly body by another

52. RF connector type

56. Color code for the number 5 (pl.)

57. Automatic network analyzer (abbr.)

58. Chemical symbol for iron

61. Archaic term for an outdoor antenna

64. Chemical symbol for radon

66. 1,000 seconds (abbr.)

68. Opposite of I.D.

69. Army-Navy specification prefix

71. Network department (abbr.)

73. The UK's largest defense electronics contractor (abbr.)

76. Charged particle

78. Automatic Calibration System (abbr.)

80. Chemical symbol for francium

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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Science & Engineering Themed Crossword Solution for October 18th, 2020 - RF Cafe

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