December 20, 2009 Engineering & Science Crossword Puzzle

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

Letters go in  light blue and  light green square.

RF Cafe - Engineering & Science Crossword Puzzle (Merry Christmas in many languages)


1. Chemical symbol for aluminum

3. Merry _________ (English)

9. Chemical symbol for zinc

11. Manufacturer

12. Relating to any picture or visual information, from the Latin word meaning "I see"

13. Stock symbol for National Semiconductor

16. Electronic warfare defense (abbr.)

17. 1E6 bits per second

18. Chart types

20. Opposite of O.D.

21. Type of flip-flop

23. Ham's code for "Are your receiving me badly?"

25. Electrical safety organization (abbr.)

26. Chemical symbol for rhodium

27. Software object reference name

29. One of four lines used in ferrite core memories

31. Trigger diode that conducts current only after its breakdown voltage has been exceeded momentarily

34. Microprocessor vendor

36. Aerodynamic opposition to thrust

38. Electromagnetic interference (abbr.)

39. Central Processing Unit

40. FCC Part 15 rules apply in this band

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

42. Unit of inductance (abbr.)

43. Chemical symbol for xenon

45. 10^1 numerical prefix

47. Chemical symbol for scandium

48. Astronomical Unit (93E6 miles)

50. ____ Krisamas (Hindi for Merry Christmas)

52. Software device for tracking elapsed time

54. Sung Tan ____ Ha (Korean for Merry Christmas)

56. Unix, Linux or Windows (abbr.)

57. A common battery cell size

58. Method of connecting redundant power supplies

60. Last stage in a transmitter (abbr.)

62. Chemical symbol for niobium

63. Unit of capacitance (abbr.)

65. Amplifier Solutions Corporation (abbr.)

67. Feliz _______ (Spanish for Merry Christmas)

70. Peripheral Component Interface (abbr.)

72. Unit of inductance (abbr.)

73. Switch position

74. Part of a FOR loop

75. Chemical symbol for calcium

76. Collection of electronic records (abbr.)

78. Morse Code for "from"

79. Instrument used to measure the height above a reference point, such as ground or sea level

84. Unit of apparent power (abbr.)

85. Type of current flow (abbr.)

86. Chemical symbol for selenium

87. Chemical symbol for cobalt

89. Chemical symbol for chlorine

90. Chemical symbol for chromium

92. Fröchliche ___________ (German for Merry Christmas)

93. Waveform described by a Dirac delta function

97. Mixer manufacturer in Woburn, MA

101. Signal-to-noise ratio (abbr.)

102. Gun safety and education organization (abbr.)

103. Stock symbol for Boeing

104. Chemical symbol for plutonium


1. Modulation type (abbr.)

2. Greek letter used for wavelength

3. The point that is the same distance from every point on the circumference of a circle (British spelling)

4. Stock symbol for Harris Communications

5. Internet protocol (abbr.)

6. Chemical symbol for terbium

7. A feedback scheme to level out the receiver audio volume (abbr.)

8. Basic

9. Diode type used as a voltage regulator (pl.)

10. Chemical symbol for nobelium

14. Megacycles (abbr.)

15. Ham's code for "What is the correct time?"

16. Chemical symbol for erbium

17. _____ Majids (Arabic Merry Christmas)

19. _____ Dàn Kuài Lè (Chinese Merry Christmas)

22. Below ELF

23. Kill the field of a superconducting magnet

24. ______ Noël (French for Merry Christmas)

25. Country of RF Cafe's residency

28. Light ray

30. Logical gate type (pl.)

32. U.K. equivalent of the IEEE

33. Connector vendor

35. Test point (abbr.)

36. English theoretical physicist who created the delta function now named after him

37. Stock symbol for Advanced Micro Devices

41. Exhibiting XL = XC

42. LCD display vendor

44. Galilean moon

46. Battery cell type; Having a pH greater than 7

47. Chemical symbol for antimony

49. Unit of inductance (abbr.)

51. Unit of time (abbr.)

53. Chemical symbol for manganese

55. One type of electron spin

57. Soften metal

59. RF design consultant in Rochester, NY

61. Kilocycles (abbr.)

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

66. Nollaig _____ (Irish for Merry Christmas)

68. Abbreviation for minimum voltage

69. Decimeter (abbr.)

71. Coder/decoder (abbr.)

75. Wire

77. Securing device

80. Chemical symbol for tantalum

81. Multifunctional silicon devices (abbr.)

82. Chemical symbol for einsteinium

83. Test equipment (abbr.)

84. _______ Kerstfeest (Dutch for Merry Christmas)

88. Shinnen _______ (Japanese for Merry Christmas)

89. Pure carrier (abbr.)

91. Chemical symbol for radon

94. Upper Sideband (abbr.)

95. Low Noise Amplifier (abbr.)

96. Chemical symbol for strontium

98. One port of an amplifier

99. Total radiated power (abbr.)

100. Greek letter

See solution below

RF Cafe - Engineering & Science Crossword Puzzle (Merry Christmas in many languages)