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RF Cafe Engineering Crossword Puzzle w/Weekly Headlines
February 12, 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 (2/6 - 2/10) "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 Crossword Puzzle w/Weekly Headlines February 12, 2017 - RF Cafe

1. The QST _______ Design Competition is Under Way*

8. Oldest, Longest-Licensed U.S. Ham Charles _______, W2RP, SK*

14. Exalted-Carrier Single Sideband (abbr.)

15. Term used in soldering to achieve the condition that occurs when the metals being soldered are hot enough to melt the solder so it flows over the surface

17. The scalar component of velocity

19. A concern of Boolean equations

22. Lubricant

24. The constellation in which Canopus is located

25. 12 inches

26. Hub of the solar system

28. A measure of receiver quality (abbr.)

29. Chemical symbol for neptunium

30. 30 Hz to 300 Hz

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

33. Chemical symbol for tin

34. International phonetic alphabet letter "Q"

37. Configured a switch to break electrical contact

39. Chemical symbol for einsteinium

41. Regarding light

42. __ Maker Unlawfully Tracked Viewing Habits*

43. Mr. Tesla's first name

44. PC Card - with 68 pin interface

45. Lunar 'seas'

46. A common battery cell size

48. FCC Confirms $15k Fine for Unlicensed _____ Operation*

50. Front end of a rocket (pl.)

53. Chemical symbol for lithium

54. Coefficient of temperature (abbr.)

55. Type of logic gate (pl.)

56. Chemical symbol for antimony

58. Chemical symbol for platinum

59. Engineering Change Order (abbr.)

60. Read-only (abbr.)

61. Relative power level unit (abbr.)

63. Trump Appoints ___ as New FCC Chairman*

66. Low Noise Amplifier (abbr.)

68. Galilean moon

69. End of soldering iron

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

73. Chemical symbol for aluminum

74. ________ Satellite in Service After Overcoming Engine Trouble*

75. Battle over 5G ________ Has Begun*

2. Apollo 11 astronaut ____ Armstrong

3. Coefficient of temperature (abbr.)

4. ______ velocity - speed necessary to become free of the Earth's gravitational force

5. Unit of time (abbr.)

6. Chemical symbol for niobium

7. Small Satellite __________ Cooperation Strengthened in the Americas*

9. Chemical symbol for einsteinium

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

11. Elementary particle

12. Akin to an EE, CE, AE, etc.

13. Type of data conversion device (abbr., pl.)

15. Write-Once (abbr.)

16. Semiconductor and calculator company (abbr.)

18. Looking for Entangled Atoms in a Bose-Einstein __________*

19. Local Oscillator (abbr.)

20. Chemical symbol for californium

21. Asia's __________ Paradise is Japan*

23. Band between RF and BB

27. Unit of time (abbr.)

29. Greek letter used for frequency

32. European equivalent to the U.L.

35. Intertwines strands of fine wire

36. The entire Universe

37. An arc of a circle equal to one eighth of its circumference

38. Lay bare, such as a wire

40. Chemical symbol for silicon

42. Semiconductor and calculator company (abbr.)

47. Type of current flow (abbr.)

48. Automaton

49. Flash caused by an electric current ionizing a gas or vapor

51. High-speed logic family

52. System for underwater navigation

53. Chemical symbol for lawrencium

57. Filter type that blocks frequencies below and above a specified band (abbr.)

58. Ratio of circumference to diameter

61. Deutsche Industrie Normenausschuss

62. Digital encoding of the transmission mode in the vertical sync portion of an SSTV image (abbr.)

64. Analog-to-Digital (abbr.)

65. Type of chart

67. Arithmetic Logic Unit (abbr.)

69. Chemical symbol for thallium

70. Last stage in a transmitter (abbr.)

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

72. Unit of frequency (archaic, abbr.)

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.

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RF Cafe Crossword Puzzle Solution w/Weekly Headlines February 12, 2017 - RF Cafe

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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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