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RF & Microwave Engineering Crossword Puzzle
April 5, 2015

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

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

RF & Microwave Crossword Puzzle, April 5, 2015 - RF Cafe

1. Chemical symbol for gallium

3. Physical quantity defined as force per unit area

9. Mate a plug to a jack

13. Unit of capacitance (abbr.)

14. Substrate for mounting components (abbr.)

15. Chemical symbol for selenium

17. 300 MHz to 3 GHz

20. Unit of inductance (abbr.)

22. Aerodynamic opposition to thrust

24. Electromotive force (abbr.)

25. Chemical symbol for aluminum

27. Unit of resistance (pl.)

30. Chemical symbol for molybdenum

31. Unit of time (abbr.)

32. Degree of IC sophistication (abbr.)

33. Curve produced when a cone is cut by an oblique plane which does not intersect the base

34. Maximum Usable Frequency

36. Chemical symbol for einsteinium

37. Infrared (abbr.)

38. Intentionally block communications signals

40. An electron tube in which bunching of electrons is produced by electric fields, used in radars & microwave ovens

45. World Amateur Radio Conference

48. Morse Code for "from"

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

50. ECM response

51. Any quadrilateral in which the opposite sides and angles are equal

52. 36 in. (abbr., pl.)

54. With 64 Down, this website's title

56. Time delay (abbr.)

57. Ham's code for "What is your location?"

58. Slang for antenna

63. Automatic Calibration System (abbr.)

64. European equivalent to the U.L.

65. Chemical symbol for erbium

67. Shorthand for electronic magazine

69. Chemical symbol for francium

70. Facsimile

71. One factor of a polynomial

73. Chemical symbol for ytterbium

75. Switch position

76. Chemical symbol for radium

78. Government program to bring electricity to farms (abbr.)

79. Chemical symbol for lutetium

80. ______ House, technical book publisher

81. Pass-through plug-in PCB assembly used to shift functional PCB outside of chassis for probing

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

1. Bushing used to direct the path of a pushrod

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

4. Angular speed unit

5. Reflected radar or sonar signal (pl.)

6. Chemical symbol for antimony

7. Unit of time (abbr.)

8. Positive voltage lead color

10. Adds two or more inputs

11. 30 GHz to 300 GHz

12. Part of this website's title

16. Person responsible for program spending (abbr.)

18. Adjusted

19. Programmable logic device (abbr.)

21. Type of component package (abbr.)

23. "The father of rocketry"

24. Mr. Fermi's first name

26. Chemical symbol for lithium

28. Chemical symbol for helium

29. "Texting" (abbr.)

32. Premier RF/microwave engineering magazine (abbr.)

35. Start frequency (abbr.)

36. Electrical device for registering shaft positions

39. Ticker symbol for Analog Devices

40. User input device for a cellphone (pl.)

41. Semiconductor lamp

42. Chemical symbol for scandium

43. An angle having more than 180 degrees but less than 360

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

46. Chemical symbol for rhodium

47. Chemical symbol for niobium

53. Official Space Shuttle designation (abbr.)

55. "Calling any amateur radio station"

56. Unit of frequency

58. Chemical symbol for tin

59. Sent a message via Morse Code

60. 3 MHz to 30 MHz

61. Type of logic gate (pl.)

62. Turn on a repeater by transmitting on its input frequency (2 wds.)

64. With 54 Across, this website's title

66. Type of memory

68. Opposite of O.D.

70. Fast Fourier transform (abbr.)

72. Ham abbreviation for transceiver

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

75. Type of logic gate

77. PC follower

78. Chemical symbol for radon

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

See solution below


2015 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.

2023 |2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | Sudoku


A cruciverbalist is a person who is skilled at creating or solving crossword puzzles. The term is a combination of "cruci-" from "crucifix," meaning cross, and "verbalist" from "verbal," indicating a person who deals with words. cruciverbalists are often responsible for designing crossword puzzles, and they possess a deep knowledge of wordplay, vocabulary, and the techniques used in constructing and solving crosswords. They aim to make puzzles that are both challenging and enjoyable for crossword enthusiasts.

December 27

December 20

December 13

December 6

November 29

November 22

November 15

November 8

November 1

October 25

October 18

October 11

October 4

September 27

September 20

September 13

September 6

August 30

August 16

August 9

August 2

July 26

July 19

July 12

June 21

May 3

April 5

March 8

March 1

February 22

February 8

January 25

January 18

January 11

January 4













RF & Microwave Crossword Puzzle Solution, April 5, 2015 - 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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