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Science Crossword Puzzle
December
16, 2012
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Reproduction of this puzzle without the express permission
of RF Cafe is prohibited.
| ACROSS |
DOWN |
1. International Amateur Radio
Union (abbr.)
4. Binary Coded Decimal
7. 24 hours
10.
Type of antenna with an element made of a single, flexible rod
or tube
14. Type of logic gate (pl.)
15. Kilocycles
16. Electronics Industry Association (abbr.)
17. American
space agency (abbr.)
19. Add solder to tip of iron
20.
Constellation : The lion
21. 36 inches
22. Intermodulation
distortion (abbr.)
24. Computer I/O interfaces; i.e., USB,
serial, parallel
26. Attenuator
28. Logarithmic reflectivity
unit
30. Government program to bring electricity to farms
(abbr.)
31. Numerical basis for decibels (abbr.)
33. ARRL's
magazine
35. Term used in soldering to achieve the condition
that occurs when the metals being soldered are hot enough to
melt the solder so it flows over the surface
37. Peak envelope
power (abbr.)
38. Network file transfer protocol (abbr.)
40. One factor of a polynomial
42. Adjusted the specification
for temperature
45. Radio signal route
46. Remove insulation
from a wire
48. One tier of a PCB
49. Frequency (pl.)
50. Joined a male and a female connector
51. Threaded fastener
52. Adds an impurity to a semiconductor
54. Wire
56. Constellation
of The Whale
59. Longitudinal shape-forming structural element
60. Company that markets Delphi software
62. Move from cell
to cell
63. Lubricant
64. Parts per million (abbr.)
65. ___/IP scheme for networked connectivity
67. Push to
Talk (abbr.)
68. 30 Hz to 300 Hz
69. Modulation technique
that varies the width of pulses in a train (abbr.)
71. Half
of DSB
74. Online service
75. One port on a BJT (pl.)
77. International Microwave Symposium (abbr.)
80. Positive
emitter-coupled logic (abbr.)
82. Negation prefix
83.
Transformer interwinding connection
85. Compliment to a zero
in a polynomial
87. Family of ICs with a certain component
density level (abbr.)
88. Permissible deviation from a specified
value normally expressed as a percentage
89. Having power
applied (slang)
90. Move in a raster pattern
91. Logic
family (abbr.)
92. Lower sideband (abbr.)
93. Signal amplitude
degradation due to inefficiency |
1. Charged particles
2. Amateur
Radio Association (abbr.)
3. Receiver power level circuitry
(abbr.)
4. The "B" in BER
5. Short video segment
6.
Impurity in a semiconductor that adds a mobile electron in the
conduction band
7. International phonetic alphabet letter
"D"
8. Amateur Radio Emergency Service (abbr.)
9. Elemental
compound used for microwave frequency reference oscillators
(abbr.)
11. Part of a screw that engages the driver
12.
Type of digital filter (abbr.)
13. Attenuator (pl.)
18.
Stock symbol for Advanced Micro Devices
21. Yttrium Aluminum
Garnet
23. Logarithmic unit of power (abbr.)
25. Electro-mechanical
switching device
26. Type of e-mail address system (abbr.)
27. Theoretical "single point" antenna used calculate gain
29. One system's phonetic letter "z"
31. Semiconductor lamp
32. Cause to decrease in magnitude
33. Ham's code for "Shall
I send more slowly?"
34. Telex-Over-Radio (abbr.)
36.
Vector _______, antenna designer & manufacturer in Melbourne,
Australia
37. Unit for expressing a ratio
38. Cooling
device
39. Personal Handy Phone System (abbr.)
41. Software
device for tracking elapsed time
43. Aircraft tracking system
44. Engineer who experimented with extremely high voltages
45. Physical quantity defined as being the work done per unit
time
47. Last stage in transmitter (abbr., pl.)
49. Company
that leases lab equipment, in Lake Mary, FL (abbr.)
52. Digital
storage oscilloscope (abbr.)
53. Programmable logic device
(abbr.)
55. Opens a fuse
57. Uppermost surface
58.
Surface Mount Technology
60. Filter type (abbr.)
61. Cellphone
band below PCS
64. Oscillator type that is referenced to
an external source (abbr.)
66. Greek letter
68. End of
Life (abbr.)
69. Control and monitoring board
70. Steel,
brass, aluminum, etc.
72. Graphics file extension
73.
Multiprotocol Label Switching (abbr.)
74. Asynchronous Communication
Interface Adapter (abbr.)
75. Threaded fastener
76. Prefix
for font without serifs
78. Small Office/Home Office (abbr.)
79. Adjusts a pot
81. A keyboard key
82. Logical negation
operator
84. Substrate for mounting components (abbr.)
86. Line of Sight (abbr.) |
See solution below
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