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Copyright: 1996 - 2024

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    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 typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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December 27, 2009 Engineering & Science Crossword Puzzle


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

RF Cafe - Engineering & Science Crossword Puzzle

ACROSS

2. Antenna structure that connects directly to the feed line

11. One port of an amplifier

12. Chemical symbol for praseodymium

13. Ham's code for "Is my transmission being interfered with?"

14. Chemical symbol for strontium

16. Method of connecting redundant power supplies (pl.)

19. Engineering Change Order (abbr.)

21. Energy in motion

24. System On Chip

27. Chemical symbol for tin

28. Greek letter (micro)

29. BASIC looping keyword

31. __ + 63A + 82A, RFIC company in Greensboro, NC

32. Adjust a pot

35. Angular speed unit

38. Type of high speed Internet service (abbr.)

40. Join a male and a female connector

42. Fan vendor in San Ysidro, CA,

44. Unix, Linux or Windows (abbr.)

46. Multifunctional silicon devices (abbr.)

48. Type of high frequency circuit substrate (abbr.)

50. Chemical symbol for platinum

52. Chemical symbol for bromine

53. ____ Technologies, RF module maker in Merlin, OR

54. Radio Amateurs of Canada

55. 1/2 of a byte

56. One component of a complex number (abbr.)

58. Chemical symbol for argon

59. Chemical symbol for silicon

60. Small motored tool for model drilling, grinding, shaping, etc.

62. Chemical symbol for scandium

63. 31A + _____ + 82A, RFIC company in Greensboro, NC

65. Chemical symbol for europium

67. The "E" in TEM

70. Chemical symbol for lithium

71. Network department (abbr.)

72. Printer output resolution unit (abbr.)

74. Ham abbreviation indicating contacts with all major land masses

75. Boob tube (abbr.)

77. Type of current

79. Centimeter (abbr.)

81. Keyboard key

82. 31A + 63A + _______, RFIC company in Greensboro, NC

83. Region of the ionosphere approximately 90 to 400 miles above Earth - responsible for most long distance propagation below 30 MHz (hyph.)

DOWN

1. Basic PN junction component (pl.)

2. Plane circular area

3. Chemical symbol for radon

4. Abbreviation for peak voltage

5. Chemical symbol for erbium

6. Equalizer (abbr.)

7. Chemical symbol for lawrencium

8. Nuclear explosion byproduct harmful to electronic (abbr., pl.)

9. Chemical symbol for einsteinium

10. The design component of total product cost (abbr.)

15. RF connector company located in Merlin, OR

17. Cabinet vendor in Simi Valley, CA

18. IC socket type for easy insertion & removal (abbr.)

20. Chemical symbol for cesium

22. Electromagnetic (abbr.)

23. The "C" in CDMA

25. Method of connecting redundant power supplies

26. Airflow rate (abbr.)

30. Type of flip-flop

33. Effective Radiated Power (abbr.)

34. Part of a FOR loop

36. Queried an input for changes

37. Chemical symbol for manganese

39. Sample group

41. End of soldering iron

43. Electrical generator locomotion

45. Special diode type that can be switched (abbr.)

47. Sharp bend in I-V curve

49. Unit of heat

51. _______ Electronics, RF filter & components manufacturer in Garfield, NJ

52. Bulletin Board System

56. Opposite of local

57. Voltage-current phase mnemonic

58. Chemical symbol for arsenic

61. Web's most popular RF site (2 ltrs. + 1 wd.)

64. Chemical symbol for chlorine

66. One type of electron spin

68. Modern battlefield technique (abbr.)

69. Coefficient of temperature (abbr.)

71. Opposite of O.D.

73. Current-voltage phase mnemonic

76. 3 kHz to 30 kHz

78. 24 hours

80. 1e3 uV


See solution below

RF Cafe - Science & Engineering & Science Crossword Puzzle

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