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Copyright: 1996 - 2024
    Kirt Blattenberger,


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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Science Crossword Puzzle
December 16, 2012

2012 Crosswords Archive

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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December 30
December 23
December 16
December 9
December 2
November 25
November 18
November 11
November 4
October 28
October 21
October 14
October 7
September 30
September 23
September 16
September 9
September 2
August 26
August 19
August 12
August 5
July 29
July 22
July 15
July 8
July 1
June 24
June 17
June 10
June 3
May 27
May 20
May 13
May 6
April 29
April 22
April 15
April 8
April 1
March 25
March 18
March 11
March 4
February 26
February 19
February 12
February 5
January 29
January 22
January 15
January 8
January 1

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

Science Crossword Puzzle for December 16, 2012 - RF Cafe

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

Science Crossword Puzzle Solution for December 16, 2012 - RF Cafe

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