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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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Filter Theme Crossword Puzzle
December 27, 2020

 This December 27th crossword puzzle has many words and clues related to Filters (indicated with an asterisk *). For the sake of avid cruciverbalists amongst us, each week I create a new crossword puzzle that has a theme related to engineering, mathematics, chemistry, physics, and other technical words. As always, this one contains no names of politicians, mountain ranges, exotic foods or plants, movie stars, or anything of the sort unless it/he/she is related to this puzzle's technology theme (e.g., Hedy Lamarr or the Bikini Atoll). The technically inclined cruciverbalists amongst us will appreciate the effort. Enjoy!


Reproduction of this puzzle without the express permission of RF Cafe is prohibited.

acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words

Filter Theme Crossword Puzzle for December 27, 2020 - RF Cafe

ACROSS DOWN

1. Filter type that rejects high frequencies *

8. Type of reconfigurable memory useable for creating digital filters (abbr., pl.) *

14. In physics, what is it that is required to causes a change in the motion of a body

15. Period between radar transmitter's output waveform (abbr.)

17. Small DIP package (abbr., pl.)

19. 2-part adhesive

22. Amateur radio enthusiast

24. Fail-____ switch

25. Light

26. High-speed logic family

28. Electromagnetic (abbr.)

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

30. User Datagram Protocol

31. Chemical symbol for lanthanum

33. Chemical symbol for chlorine

34. Frequency specification of a filter *

37. High attenuation filter type also synonymous with 21 Down (pl.) *

39. Yard (abbr.)

41. A filter is used to prevent this artifact from appearing inband in a receiver. *

42. Internet protocol (abbr.)

43. Code used for automating software task

44. Heat required to change a solid into a liquid or a liquid into a gas without change of temperature

45. Largest moon of Saturn

46. Chemical symbol for erbium

48. A nickname Mr. Packard's friends might have called him as a child

50. Filter region sometimes called the cutoff (pl.) *

53. Unit of frequency (archaic, abbr.)

54. Unit of apparent power (abbr.)

55. Term indicating profitability of a company (abbr.)

56. Type of flip-flop

58. Shorthand for oxygen

59. Electromagnetic interference (abbr.)

60. Chemical symbol for gallium

61. Former prominent air carrier in the U.S. originally headed by World War I flying ace Eddie Rickenbacker (abbr.)

63. ELI the ICE ___

66. Common gateway interface (abbr.)

68. Ratio of circumference to diameter

69. Video Graphics Array (abbr.)

71. Negation prefix

73. Unit of length (abbr.)

74. Filter type that rejects lower and higher frequencies *

75. Filter type that rejects low frequencies *

2. Orthogonal frequency-division multiplexing (abbr.)

3. Write-Once (abbr.)

4. A digital counter input line to establish an initial value

5. Type of current flow (abbr.)

6. Chemical symbol for selenium

7. Transmits a signal

9. Chemical symbol for einsteinium

10. Chemical symbol for polonium

11. Inband amplitude characteristic of an 18 Down type filter *

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

13. BSEE + 2 years

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

16. Mate to an RX

18. Equiripple filter type (pl.)

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

20. Ham-ese for Young Lady

21. High attenuation filter type also synonymous with 37 Across *

23. Modulation type (abbr.)

27. Unit of volume (abbr.)

29. Chemical symbol for ruthenium

32. Chemical symbol for argon

35. Butterworth filter rolls off at 6 dB per _______ for each order multiplier *

36. Electronic component for passing certain frequencies and blocking others *

37. Thin-film hybrid and discrete microwave and millimeter-wave components vendor in Sunnyvale, CA

38. Empty space left in rocket fuel tank to allow for fuel expansion

40. Type of current

42. One port of an amplifier

47. Chemical symbol for radium

48. One port on a FET

49. Online service

51. Science of assuring operation amid dense EM background noise (abbr.)

52. Greek letter, used to indicate summation

53. Chemical symbol for magnesium

57. Type of component package (abbr.)

58. Switch position

61. Governmental agency that monitors pollution (abbr.)

62. Video Graphics Array (abbr.)

64. PC follower

65. Numerical basis for decibels (abbr.)

67. International Microwave Symposium (abbr.)

69. Abbreviation for peak voltage

70. Chemical symbol for arsenic

71. Chemical symbol for nickel

72. Unit of inductance (abbr.)


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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Filter Theme Crossword Puzzle Solution for December 27, 2020 - RF Cafe

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