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RF Cafe Engineering Crossword Puzzle w/Weekly Headlines

September 3, 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. At least 12 clues in this puzzle with an asterisk (*) are pulled from this past week's (8/28 - 9/1) "Tech Industry Headlines" 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 September 3, 2017

1. ARPA-E Awards $30M for 21 Projects as Part of ________ Program *

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

9. Precision landing system (abbr.)

11. Start frequency (abbr.)

12. Circuit element connecting PCB layers

13. Type of logic gate

16. Bandwidth (abbr.)

18. Units of energy

19. Innovative Power Products, Holbrook, NY (abbr.)

22. Chemical symbol for tantalum

23. Unit of frequency (archaic, abbr.)

24. Workplace safety group (abbr.)

25. China's Top-Down _______ Ecosystem *

28. Sample group

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

31. Radio frequency interference (abbr.)

32. _____-Kutta method in differential equations

33. Tesla's Massive Gigafactory Looks Busy in New _____ Footage *

35. Chemical symbol for copper

36. Cable television (abbr.)

37. High Data Rate

38. Chemical symbol for thulium

41. Unit of time (abbr.)

42. Stock symbol for Lockheed Martin

45. World Amateur Radio Conference

48. Local Oscillator (abbr.)

49. Graphics workshop software

50. Computer messaging service

51. Oscillator type that is referenced to an external source (abbr.)

52. Chemical symbol for calcium

53. Measure of source / load mismatch (abbr.)

55. Network controllers

58. ____ TDRS-M Satellite Achieves Orbit*

60. Part of a FOR loop

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

63. Optical cross-connect (abbr.)

64. ______ and Walmart Partner with Eye on Amazon *

65. Unit of time (abbr.)

68. Weight (abbr.)

69. Coordinated Universal Time (abbr.)

72. Chemical symbol for argon

74. Semiconductor On Insulator (abbr.)

75. Yard (abbr.)

76. Erratic random motion of microscopic particles in a fluid

1. Mr. Piper's famous yellow airplane

2. Chemical symbol for californium

3. Popular computer device interface (abbr.)

4. Boob tube (abbr.)

5. Chemical symbol for silicon

7. Image

8. Electrical unit of potential difference

10. 5 Things to Know About DARPA's ________ Grand Challenge *

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

15. Apple Likely to Launch ______ 8 on September 12 *

17. 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

19. Network department (abbr.)

20. Last stage in a transmitter (abbr.)

21. Air Force Seeks Common ___ Communications for Nuclear Forces *

23. Chemical symbol for molybdenum

26. Third planet from the sun

27. Common mode ripple rejection (abbr.)

28. Chemical symbol for lithium

29. Fractional part of a number

31. Remove oxygen from or adds hydrogen to a compound

32. Type of flip-flop

34. Unit of inductance (abbr.)

35. Logic gate output configuration (abbr.)

39. Solar Eclipse ___ Party a Hit, Science Conclusions Await Additional Analysis *

40. SPY-6 _____ Scores in Ballistic Missile Defense Test

41. Phase of matter between liquid and solid (pl.)

43. Time delay (abbr.)

44. New York on Pace to get 25 ____ to All by 2018 *

46. Samsung's Note8 Is Its Biggest ______ Phone Yet *

47. Chemical symbol for chlorine

51. Chemical symbol for praseodymium

52. World's largest yearly convention of gadget and device manufacturers (abbr.)

54. Write-Once (abbr.)

56. Metal mixture

57. Hub of the solar system

58. Chemical symbol for nobelium

59. Chemical symbol for scandium

61. The "L" in VLF

62. Plain Old Telephone System

66. Crystal filter type (abbr.)

67. Prefix used on many MIL-SPEC components

70. Chemical symbol for terbium

71. Chemical symbol for chromium

73. Chemical symbol for radon

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 Engineering Crossword Solution w/Weekly Headlines September 3, 2017

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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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