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Engineering Crossword Puzzle
October 4, 2015

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. You will never be asked the name of a movie star unless he/she was involved in a technical endeavor (e.g., Hedy Lamarr). Enjoy!

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

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

Engineering Crossword Puzzle for October 4, 2015 - RF Cafe

Note: A standard for crossword puzzles is when all words in a clue are capitalized, the solution is the abbreviation or acronym for that clue; e.g., Alternating Current = AC.

ACROSS DOWN
1. Government program to bring electricity to farms (abbr.)

4. Secondary cell using a liquid as an electrolyte (2 wds.)

8. One system's phonetic letter "z"

11. Online service (acr.)

12. Abbreviation for "power"

13. Last stage in transmitter (abbr., pl.)

15. Amateur Radio Association (abbr.)

16. Negative temperature coefficient (abbr.)

17. Boob tube (abbr.)

18. Common shorthand reference for a capacitor

21. Chemical symbol for neptunium

22. Parts per million (abbr.)

23. Monte-_____ analysis

25. Sporadic E-layer ionospheric propagation (hyph.)

26. __ + 18 Down, thw world's best engineering website

27. Chemical symbol for cadmium

28. Type of vector product

29. Electromagnetic (abbr.)

31. A keyboard key

33. Morse Code for "from"

34. Filter type (abbr.)

37. Chemical symbol for aluminum

39. Chemical symbol for lanthanum

40. Radio frequency interference (abbr.)

43. International phonetic alphabet letter "K"

45. Its chemical symbol is Li

46. One factor of a polynomial

47. Control and monitoring board

48. Amateur Teleprinter Over Radio (abbr.)

49. One port on a FET

50. Configuring a switch to break electrical contact

54. A length of transmission line that is open or shorted at one end

56. Direct Digital Synthesis (abbr.)

57. Type of flip-flop

58. Chemical symbol for selenium

59. "Texting" (abbr.)

60. Word used in describing 2-D and 3-D object dimensions; i.e., 10 mm __ 25 mm

61. Official Space Shuttle designation (abbr.)

63. Type of current

65. One axis of an ellipse

66. Unit of frequency (archaic, abbr.)

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

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

71. Computer character set (abbr.)

73. Country of RF Cafe's residency

76. Chemical symbol for arsenic

78. Nuclear explosion byproduct harmful to electronics (abbr.)

79. Unit of time (abbr.)

80. The "B" in BER

82. Nordic Mobile Telephone

83. Units of 1000 CPS

85. Type of computer display (abbr.)

86. Peripheral Component Interface (abbr.)

87. Transformer interwinding connection

88. A fragmented geometric shape that can be split into parts, each of which is a reduced-size copy of the whole

89. Acronym for path of a fast-circling satellite

1. Useful distance between Tx and Rx

2. End of transmission (abbr.)

3. Circuit for maintaining constant voltage (abbr.)

4. National Bureau of Standards radio station (time signals)

5. Chemical symbol for erbium

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

7. Computer communication scheme (abbr.)

8. Hit a component with an electrostatic discharge

9. Effective Radiated Power (abbr.)

10. Causes a voltage or current waveform to gradually die out

12. Positively doped silicon (hyph.)

14. Satellite milieu

18. 26 Across + ____, the world's best engineering website

19. Chemical symbol for argon

20. Type of programmable device (abbr.)

23. Chemical symbol for chromium

24. Opposite of I.D.

30. Battery company

32. Synchronous Digital Hierarchy

33. Degraded or destroyed performance

34. Chemical symbol for berkelium

35. Attenuator configuration (hyph.)

36. Area on a shaft for accommodating a setscrew (pl.)

38. Chemical symbol for lithium

39. Chemical symbol for lutetium

40. Factor of a polynomial

41. Online venue for posting comments & reading replies

42. Network department (abbr.)

44. Exponent that returns the original number

46. A common RS-232 serial bus command (abbr.)

49. Chemical symbol for gadolinium

51. Unit of time (abbr.)

52. Mate to a bolt

53. Unit of time (abbr.)

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

60. Term used to interrupt a conversation on a repeater to indicate that there is an emergency or urgent message

61. Society of Civil and Structural Engineers (abbr.)

62. Describes when a synchronous motor loses phase lock

64. _____ factor, the peak-to-average waveform value

65. Log onto a hard drive

66. 1/000 of an amp (abbr.)

68. Ratio of circumference to diameter

70. Proportion of two numbers

72. Centimeter (abbr.)

74. Miniature threaded RF connector

75. Test document for verifying proper function (acr.)

77. 3 GHz to 30 GHz

79. Internet address (abbr.)

80. Method of sending high-speed digital signals on electric distribution wires, a Ham's nemesis (acr.)

81. Current-voltage phase mnemonic

84. Chemical symbol for zirconium

85. Chemical symbol for calcium


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.

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Engineering Crossword Puzzle Solution for October 4, 2015 - RF Cafe

Berkeley Nucleonics Corporation - RF Cafe
Innovative Power Products Passive RF Products - RF Cafe
RIGOL Technologies (test equipment) - RF Cafe
Innovative Power Products Passive RF Products - RF Cafe
Triad RF Systems Amplifiers - RF Cafe

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    BSEE - KB3UON

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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