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Engineering-Theme Crossword Puzzle
October 3rd, 2021

This Engineering-Theme Crossword Puzzle for October 3rd has many words and clues related to... you guessed it... engineering - including RF, microwave, optics, mathematics, chemistry, physics, and other technical subjects. As always, this crossword puzzle 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

Engineering-Theme Crossword Puzzle for October 3rd, 2021 - RF Cafe

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

11. Morse Code for "from"

12. Software drafting tool (abbr.)

13. Automatic Calibration System (abbr.)

15. Type of logic gate

17. Angular speed unit

19. Common solder composition (pre-lead-free, abbr.)

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

22. Wireless Home Digital Interface (abbr.)

24. Chemical symbol for silicon

26. National Television System Committee (abbr.)

27. Compress a computer file

28. A feedback scheme to level out the receiver audio volume (abbr.)

30. Logarithmic unit of voltage (abbr.)

32. Part of a FOR loop

33. Chemical symbol for aluminum

35. 1/000 of an amp (abbr.)

36. Unlicensed FCC Part 95 realm for personal and business radio use (abbr.)

38. Last statement in a BASIC program

40. World Amateur Radio Conference

42. Type of programmable device (abbr.)

44. Type of logic gate (pl.)

45. Crystal oscillator (abbr.)

47. Chemical symbol for calcium

48. Opposite of I.D.

49. Decimeter (abbr.)

50. A measure of receiver quality (abbr.)

51. Weight (abbr.)

52. Type of modulation (abbr.)

53. Switch position

54. Chemical symbol for einsteinium

55. Chemical symbol for manganese

56. Chemical symbol for dysprosium

57. Chemical symbol for californium

58. Chemical symbol for chromium

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

62. Transmit Incremental Tuning (abbr.)

63. 1000000 prefix

65. A common lamp tube gas

67. Schematic label for voltage supply node

69. Filter type that blocks upper frequencies (abbr.)

70. Read-only (abbr.)

72. Chemical symbol for selenium

73. Galilean moon

74. Greek letter

76. ELI the ICE ___

78. Temporary Engineering Change document (abbr.)

79. Earth's natural satellite

81. Unit of length (abbr.)

83. The "S" in CES, the world's largest yearly convention of gadget and device manufacturers

85. Electromagnetic (abbr.)

86. Parts _____

87. Common gateway interface (abbr.)

88. Chemical symbol for xenon

89. Charged particle

90. Online service

92. Chemical symbol for neon

94. Physicist with a famous cat (2 wds.)

2. Chemical symbol for neodymium

3. Produce an equation from empirical data

4. Type of current flow (abbr.)

5. Battery vendor

6. Opposite of O.D.

7. French mathematician and physicist who's name is used as a unit of gas pressure

8. Engineering Change Notice (abbr.)

9. Type of flip-flop

10. Device for translating higher frequencies to lower frequencies (1 or 2 wds.)

14. Rms current times rms voltage (2 wds.)

16. Chemical symbol for rhodium

18. 1E6 nanoseconds

19. Permeability-tuned oscillator (abbr.)

20. Filter type that blocks frequencies in a specified band (abbr.)

21. Spurious RF products created by metal joints (abbr.)

23. 10E1 numerical prefix

25. Opposite of O.D.

26. Negative temperature coefficient (abbr.)

29. Stock symbol for Conexant

31. Bandwidth (abbr.)

34. Smartphone display (abbr., pl.)

37. Notch type filter (abbr.)

39. Type of current

41. Chemical symbol for radium

42. Chemical symbol for palladium

43. Centimeter (abbr.)

46. Switch position

48. Exponent that returns the original number

51. 3-phase transformer configurations

54. ECM response

55. 1/000 of an inch

56. Decimeter (abbr.)

57. Chemical symbol for calcium

58. European equivalent to the U.L.

59. Device attached to an antenna mast which rotates it so that the antenna can point in different directions

61. 1e3 μV

64. Constellation : The twins

65. Negation prefix

66. 1e-6 mA

68. Outside shell

71. Original Equipment Manufacturer (abbr.)

73. Newest buzz phrase for ubiquitous remote control and monitoring of everything (abbr.)

75. Unit of capacitance (abbr.)

77. Unit of inductance (abbr.)

80. Unix, Linux or Windows (abbr.)

82. Coefficient of temperature (abbr.)

84. Shorthand for oxygen

86. The "L" in VLF

89. Infrared (abbr.)

90. ampere-hour (abbr.)

91. Local Oscillator (abbr.)

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

See solution below


2021 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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Engineering-Theme Crossword Puzzle Solution for October 3rd, 2021 - RF Cafe

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    Kirt Blattenberger,


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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