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1/21/2008 Engineering & Science Crossword Puzzle
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Reproduction of this puzzle without the express
permission of RF Cafe is prohibited.
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![RF Cafe: Engineering & science crossword puzzle](images/cw_1-21-2008.gif)
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ACROSS 1. Circuit designed to copy a current
through one active device by controlling the current in another
active device, 2 wds. 9. Unit of heat 10. Finite Element
Analysis, abbr. 12. Chemical symbol for arsenic 14. Type
of current flow 15. Information at the beginning of a data
block, pl. 19. Megacycles, abbr. 20. Chemical symbol for
zinc 21. Negative Temperature Coefficient 23. Automatic
repeat request used in AMTOR 24. Mate to a bolt 26. Adjust
a pot 27. Devices for interpreting encoded data 29. Abbreviation
for acknowledge (also a common word for Bill the Cat) 32.
Condensed water 34. Attenuator 35. International QSL forwarding
bureau 37. Type of logic gate 38. Modulation type, abbr.
39. Erbium Doped Fiber Amplifier 40. A measure of quality
of an RX in the presence of two signals 41. Surface mount,
abbr. 42. International Reply Coupon 43. Capacitor manufacturer
in Huntington Station, NY 45. Upper Sideband 47. Transmission
Control Protocol 49. Singulated piece of IC wafer 50.
World's first satellite navigation system, abbr. 51. Test
equipment manufacturer (now Agilent) 52. 3 MHz to 30 MHz
54. Last stage in a transmitter, abbr. 55. Test point, abbr.
57. One who DXs 58. Plane geometric figure having eight straight
sides 59. The "H" in UHF 60. Greek letter 61. Coefficient
of temperature, abbr. 62. Chemical symbol for platinum
63. Test equipment, abbr. 65. Base of the binary number system
66. Yttrium Aluminum Garnet 68. Telex-Over-Radio 70. Enhanced
Graphics Adapter 71. Motorola's Digital ___ 72. Computer
monitor cable type, abbr. 73. One component of a complex
number, abbr. 75. Thermoelectric Outer Planet Spacecraft
77. Overcurrent protection device 78. Chemical symbol for
magnesium 79. Innovative Power Products, Holbrook, NY, abbr.
81. Swiss mathematician who extensively studied complex numbers
84. Government program to bring electricity to farms, abbr.
85. Division on an oscilloscope's display 89. Finite-Element
Model 90. A number that can be expressed as a/b 93. Electrical
overstress, abbr. 94. Greek letter 96. Short for potentiometer
97. Automatic Network Analyzer 98. A unit of measurement
in the field of typography 99. Chemical symbol for gadolinium
101. The portion of a cone which remains when its upper part
has been cut off by a plane parallel to its base 103. Chemical
symbol for xenon 104. Chemical symbol for tin 105. Amplifier
Solutions Corporation, abbr. 107. Type of memory 108.
Used to split signals into two or more paths, pl. |
DOWN 1. 4 GHz to 8 GHz 2. Coordinated
Universal Time, abbr. 3. Chemical symbol for ruthenium
4. Time division duplex 5. Part of this website's name
6. Original equipment manufacturer, abbr. 7. Radio Amateur
Civil Emergency Service 8. Filter that rejects lower and
higher frequencies 11. Short for "intermodulation" 13.
It is produced when water boils 15. Stock symbol for Harris
Communications 16. Equalizer, abbr. 17. Chemical symbol
for radon 18. One of two primary frequency outputs of a single-balanced
mixer 20. Compliments of poles 22. Type of imaging device,
abbr. 23. Chemical symbol for argon 25. Part of a FOR
loop 26. Hub of the solar system 28. Type of field that
will make your hair stand on end 29. Chemical symbol for
gold 30. Angle at which a radio signal is refracted in the
ionosphere, 2 wds. 31. Chemical symbol for krypton 33.
Specification provided for a capacitor bank when first energized
(2 wds.) 35. Stock symbol for Boeing 36. Unix, Linux or
Windows 42. Formerly Borland 43. Analog-to-Digital
44. European equivalent to the U.L. 46. Lifetime failure
rate curve 48. Camera image 50. Type of chart used extensively
for project scheduling 51. Base 16 number system 53. U.S.
Spectrum allocation agency 54. Sound made by an overstressed
capacitor 56. Type of chart 64. Highest point in a rocket's
trajectory, pl. 66. Yard, abbr. 67. Chemical symbol for
gallium 69. RF connector & cable manufacturer in Suwon,
Kyonggi-do, Korea 74. EEPROM that is not electrically erasable
76. Chemical symbol for selenium 77. Chemical symbol for
francium 78. Kind of average, pl. 80. Last stage in a
transmitter, abbr., pl. 82. Microfarad, abbr. 83. Electromagnetic,
abbr. 84. Rádio Nacional de Angola, abbr. 86. Indium Gallium
Phosphor semiconductor, abbr. 87. Chemical symbol for lawrencium
88. 30 GHz to 300 GHz 90. Type of memory 91. PC follower
92. Components on a parts list 95. Logic gate 96. Chemical
symbol for plutonium 100. Digital Storage Oscilloscope
102. Semiconductor On Insulator, abbr. 103. Type of logic
gate 106. Pure carrier, abbr. 107. One component of a
complex number, abbr. |
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See solution below
![](images/cw_1-21-2008s.gif)
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