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Filter Themed Crossword Puzzle
April 3rd, 2022

Here is your custom made Filter-themed crossword puzzle for April 3rd, 2022. Clues for words relevant to the theme are marked with an asterisk (*). All RF Cafe crossword puzzles are custom made by me, Kirt Blattenberger, and have only words and clues related to RF, microwave, and mm-wave engineering, optics, mathematics, chemistry, physics, and other technical subjects. As always, this crossword 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., Reginald Denny or the Tunguska event in Siberia). 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 April 3rd, 2022 - RF Cafe

ACROSS DOWN
1. Property of coils used to make filters (pl.)*
9. Java server pages (abbr.)
10. Attenuator
11. Adjust a pot
12. Chemical symbol for berkelium
13. Chemical symbol for neon
17. Bandwidth (abbr.)
19. 1.602E-19 Joules
21. Piezoelectric device used for making filters and oscillators
23. Chemical symbol for calcium
24. Passing certain frequencies and blocking others
27. Morse Code for "from"
29. Multifunctional silicon devices (abbr., pl.)
31. The "B" in BGA
32. Chemical symbol for europium
33. Type of current flow (abbr.)
37. Radio Amateurs of Canada (abbr.)
38. Unit of time (abbr.)
39. Parameter used in describing filter band edges and passband
43. Refers to the IEEE802.11 networks (abbr.)
44. International phonetic alphabet letter "Y"
47. Ctr+Alt+Del
49. Web page language
51. Frequency at which XL = XC
56. Chemical symbol for strontium
57. 36 in. (abbr., pl.)
58. Opposite of a LO
59. A BPF specification (abbr.)
60. Russian space probes which visited Halley's comet
61. Miniature RF connector
66. Modern battlefield technique (abbr.)
67. Filter type with maximally flat group delay (pl.)
71. Chemical symbol for aluminum
72. Geometrical figure on which Butterworth filter poles and zeros lie (pl.)
74. Coefficient of temperature (abbr.)
75. A common bandpass filter specification(abbr.)
76. Last stage in a transmitter (abbr.)
78. Chemical symbol for chlorine
79. Digital Signal Processor (abbr.)
82. Digital transmission figure of merit (abbr.)
84. Carrier-to-noise ratio (abbr.)
86. Filter with a maximally flat amplitude response
1. Network department (abbr.)
2. Silicon transistor type (abbr.)
3. One type of electron spin
4. Filter type with high rate of out-of-band attenuation (aka "elliptic")
5. Time delay (abbr.)
6. Chemical symbol for niobium
7. Chemical symbol for einsteinium
8. One of four lines used in ferrite core memories
9. Type of flip flop
12. Filter region between the upper and lower frequencies (abbr.)
14. End of transmission (abbr.)
15. Chemical symbol for praseodymium
16. Electrical component used along with 1 Across to make filters
17. Stock symbol for Boeing
18. Greek number 11
20. Circuit element connecting PCB layers
21. Common gateway interface (abbr.)
22. 36 in. (abbr., pl.)
23. Equiripple filter type (pl.)
25. Local Oscillator (abbr.)
26. Electromagnetic (abbr.)
28. The geometric shape on which poles and zeros for Cauer filters lie
30. Error checking scheme (abbr.)
31. Type of crystal filter (abbr.)
33. A type of digital modulation (abbr.)
34. Type of matrix barcode used with laser scanning(abbr.)
35. "Calling any amateur radio station"
36. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr.)
38. Describes an amplifier with a multiplication factor of 1 (2 wds.)
39. Chemical symbol for iron
40. Nuclear explosion byproduct harmful to electronic (abbr., pl.)
41. Balun with both ports unbalanced
42. A common lamp tube gas
45. BS__ - the degree held by many RF Cafe visitors
46. Chemical symbol for iron
47. One component of a complex number (abbr.)
48. Broadband Signal Intrusion (abbr.)
50. BlackBerry or Palm for example (abbr.)
52. Electronic warfare defense (abbr.)
53. Unix, Linux or Windows (abbr.)
54. Chemical symbol for silver
55. Chemical symbol for cobalt
61. Shortwave listener (abbr.)
62. Metric system (abbr.)
63. One port of an amplifier
64. 1E6 nanoseconds
65. Mathematical table whose entries come from a fixed finite set of symbols (abbr.)
66. Exalted-Carrier Single Sideband (abbr.)
68. Threaded hardware used to tune cavity filters
69. Indium phosphide (abbr.)
70. Chemical symbol for neodymium
71. Chemical symbol for gold
73. Radio signals from the cosmos (abbr.)
75. A common bandpass filter specification(abbr.)
77. Logic family
78. Chemical symbol for chromium
80. Chemical symbol for plutonium
81. PC follower
82. Filter type that blocks frequencies in a specified band (abbr.)
83. Read-only (abbr.)
85. Unit of inductance (abbr.)

See solution below

 

2022 Crosswords 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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August 28

August 21

August 14

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March 6

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February 6

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Filter Theme Crossword Puzzle Solution for April 3rd, 2022 - RF Cafe

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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...

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