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Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024

Webmaster:

    Kirt Blattenberger,

    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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12/25/2007 Engineering & Science Crossword Puzzle

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

RF Cafe - 12-25-2007 Engineering & Science Crossword Puzzle

ACROSS

1. Electric eye

9. Angular speed unit, abbr.

10. PCB through connection

12. Type of chart

14. Rádio Nacional de Angola, abbr.

16. Fan vendor in San Ysidro, CA,

17. Company that makes test cables, Everett, WA

18. Opposite of I.D.

19. Peripheral Component Interface

21. Min-to-max voltage of a waveform

22. European equivalent to the U.L.

23. American equivalent of C.E.

24. The largest asteroid

25. Summation symbol

26. Type of IC package, pl.

28. Radio term for indicating the end of a transmission segment

29. International phonetic alphabet letter "I"

32. Forerunner to NASA

33. Unit of time

34. Chemical symbol for praseodymium

35. Home state of Los Alamos lab

36. Max or min voltage of a waveform

37. Total Radiated Power

40. Chemical symbol for selenium

41. Electronics manufacturer with "meatball" logo

43. Component of product cost, abbr.

45. Common battery cell size

46. Executable software

49. Audio Frequency

50. Yard, abbr.

51. Family of TTL logic

52. Radar display, abbr.

53. Test Point or Toilet Paper

54. Chemical symbol for cesium

55. Infrared, abbr.

56. Picohenry, abbr.

57. Type of current flow

58. Chemical symbol for tantalum

60. One port of an amplifier

62. Chemical symbol for helium

63. Portion of signal not transmitted to the load

68. Greek letter (micro)

69. Modulation type, abbr.

70. Erbium Doped Fiber Amplifier

71. Fixed size group of bits

72. Modern battlefield technique, abbr.

73. 1e-6 mA

74. Electromagnetic

76. Colpitts, Armstrong, Hartley, etc.

77. The part of a circle enclosed between an arc and a chord

83. The fourth state of matter, pl.

88. One state of matter

89. Data storage units

90. Maximum Usable Frequency

91. Oscillator manufacturer in Whippany, NJ (abbr.)

DOWN

2. Vacuum amplifier tubes

3. Infinite resistance

4. Decimeter, abbr.

5. Boob tube

6. Antenna radiated power measurement, abbr.

7. Second brightest star

8. Type of component attachment format, 2 wds.

11. Concentric transmission line

12. Instructions

13. Networks International Corporation, abbr., manufacturer of custom RF & microwave filters, Overland Park, KS

15. Amplifier vendor in Philadelphia, PA

19. 10^-12 numerical prefix

20. Stock symbol for Intel

26. Coaxial cable/connector manufacturer headquartered in München

Germany, pl.

27. Marconi's transmitter configuration, 2 wds.

30. Stock symbol for National Semiconductor

31. Innovative Power Products, Holbrook, NY, abbr.

38. Solder type cable termination manufacturer, now owned by Tyco

39. PCB areas for mounting circuit components

40. Joined two wires together

42. One port on a BJT

43. Stock symbol for National Instruments

44. Mixer vendor in Sacramento, CA

47. Lubricant

48. Angular speed unit, abbr.

56. Representation of a sine wave whose amplitude, phase, and frequency are time-invariant

57. Length times width, pl.

59. Summer

61. Engineering firm in Middletown, OH, that provides RF subsystem design services

64. Femtofarad, abbr.

65. Chemical symbol for lanthanum

66. Pure carrier, abbr.

67. Part of a FOR loop

73. Chemical symbol for nobelium

75. 1E6 nanoseconds

78. Global System for Mobile Communications

79. Minutes of Use, abbr.

80. 30 Hz to 300 Hz

81. Chemical symbol for nickel

82. Time delay, abbr.

83. Picofarad, abbr.

84. Chemical symbol for lithium

85. Automatic Level Control

86. Adjust a pot

87. Degree of IC sophistication


Answer below

 

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