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RF Cafe Engineering Crossword Puzzle w/Weekly Headlines
April 2, 2017

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. Clues in this puzzle with an asterisk (*) are pulled from this past week's (3/27 - 4/2) "High Tech News" column on the RF Cafe homepage. Enjoy!

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

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

RF Cafe Engineering Crossword Puzzle w/Weekly Headlines April 2, 2017

1. Scientists Evade the Heisenberg ___________ Principle *

9. Unit of resistance

10. Radio Amateurs of Canada (abbr.)

11. Attenuator

12. One port of an amplifier

13. Mate to an RX

17. Chemical symbol for krypton

19. Internet protocol (abbr.)

21. WikiLeaks Vault 7 Leak Claims CIA Bugs 'Factory Fresh' _______ *

23. Chemical symbol for silver

24. Ubiquitous antenna structure along interstate highways (2 wds.)

27. Read-only (abbr.)

29. Hz

31. Prefix for 10E-18

32. Chemical symbol for californium

33. Type of matrix barcode used with laser scanning(abbr.)

37. Cellphone band directly above DCS

38. Chemical symbol for francium

39. C.I.A. Developed Tools to Spy on Mac Computers, _________ Disclosure Shows *

43. Trigonometric function equal to the ratio between the side opposite a given angle, and the hypotenuse

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

47. Table type used in software for storing selectable values

49. Ad-hoc on demand distance vector (abbr.)

51. Change phase from solid to vapor

56. Unit of time (abbr.)

57. Base 16 number system (abbr.)

58. Network department (abbr.)

59. Ratio of circumference to diameter

60. Roadmap Says ____ Ends ~2024 *

61. Common plastic insulation type (abbr.)

66. Chemical symbol for platinum

67. _________ Couple are 1st Foreigners to Own U.S. Radio Stations *

71. Unit of length (abbr.)

72. Nokia Confirms Its New _______ Phones to Hit U.S. Shelves *

74. Chemical symbol for radium

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

76. Unit of frequency (archaic, abbr.)

78. Chemical symbol for palladium

79. Heterojunction Bipolar Transistor

82. Early computer display screen resolution (abbr.)

84. Readability, Signal, and Tone (QoS report type)

86. Startup Develops Polymer ___________ for Safer, Longer-Lasting Batteries *

1. Unit of inductance (abbr.)

2. Nordic Mobile Telephone

3. Chemical symbol for erbium

4. Cuba Institutes New Amateur _____ Regulations *

5. Coefficient of temperature (abbr.)

6. Opposite of O.D.

7. Test point (abbr.)

8. A major search engine

9. Switch position

12. Infrared (abbr.)

14. Amateurese for "wife"

15. One type of electron spin

16. Device used to dissipate excess joule energy from an assembly (2wds., pl.)

17. Mass unit (abbr.)

18. Chemical symbol for beryllium

20. Printed Wiring Board (abbr.)

21. International Reply Coupon (abbr.)

22. Stock symbol for Harris Communications

23. __________ Test - used to verify compliance with manufacturer published specifications

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

26. Test equipment (abbr.)

28. How to Escape __________ Prison *

30. Form of digital phase modulation in which the phase of the RF signal depends on the modulating code (abbr.)

31. Automatic Calibration System (abbr.)

33. Ham's code for "Shall I send more slowly?"

34. Semiconductor and calculator company (abbr.)

35. Chemical symbol for silicon

36. Morse Code for "from"

38. Parabolic antenna-to-waveguide interface component (pl.)

39. Weight (abbr.)

40. Adjustment dial

41. Plural of locus

42. Asynchronous Communication Interface Adapter (abbr.)

45. Chemical symbol for europium

46. Local Oscillator (abbr.)

47. Front edge of a wing (abbr.)

48. One port of an amplifier

50. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr., pl.)

52. Ultra High Voltage (abbr.)

53. Chemical symbol for lawrencium

54. Chemical symbol for molybdenum

55. Chemical symbol for thallium

61. Permeability-tuned oscillator (abbr.)

62. Software drafting tool (abbr.)

63. Airport Surveillance Radar (abbr.)

64. Chemical symbol for strontium

65. Electrical safety organization (abbr.)

66. Device used to make contact with a point to be measured

68. International phonetic alphabet letter "T"

69. A type of digital modulation (abbr.)

70. People Who Think They're 'Tech-Savvy' 18% More Likely to Be Hit by __ Theft *

71. A BPF specification (abbr.)

73. Network department (abbr.)

75. Opposite of I.D.

77. Type of computer display (abbr.)

78. Chemical symbol for platinum

80. Chemical symbol for thallium

81. Type of current

82. Chemical symbol for chromium

83. Chemical symbol for aluminum

85. Chemical symbol for selenium

See solution below


2017 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.

2024 | 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 31

December 24

December 17

December 10

December 3

November 26

November 19

November 12

November 5

October 29

October 22

October 15

October 8

October 1

September 24

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September 10

September 3

August 27

August 20

August 13

August 6

July 30

July 23

July 16

July 9

July 2

June 25

June 18

June 11

June 4

May 28

May 21

May 14

May 7

April 30

April 23

April 2

March 26

March 19

March 12

March 5

February 26

February 19

February 12

February 5

January 29

January 22

January 15

January 8

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RF Cafe Engineering Crossword Puzzle Solution w/Weekly Headlines April 2, 2017

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