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Kirt Blattenberger - RF Cafe WebmasterCopyright
1996 - 2016
Webmaster:
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 Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

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Science Crossword Puzzle
October 11, 2015

This week's custom crossword puzzle contains only words with relevance to science, engineering, mathematics, chemistry, astronomy, mechanics, etc. Since each puzzle is created personally by me, I usually insert a few special words and clues. This week, the company names of my two newest advertisers* are buried somewhere in the matrix. Enjoy!

Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words

Science-Themed Crossword Puzzle for October 11, 2015 - RF Cafe

Note: A standard for crossword puzzles is when all words in a clue are capitalized, the solution is the abbreviation or acronym for that clue; e.g., Alternating Current = AC.

ACROSS DOWN
2. ___-___ + 28 Down, manufacturer of attenuators, terminations, resistors, and diode detectors*
5. Leading and trailing edge frequency variation of a CW pulse
8. Vacuum tube grid placed between control grid and plate in a pentode
13. Constellation : The lion
15. Chemical symbol for molybdenum
16. Keyboard key
18. Oscillator type that is referenced to an external source (abbr.)
21. Chemical symbol for arsenic
22. Lubricant
24. Modulation type (acr.)
25. Chemical symbol for platinum
27. Miniature RF connector (pl.)
29. Frequency Division Duplex
31. Increase voltage linearly
33. Switch position
35. Chemical symbol for nickel
36. ____ + 32 Down, manufacturer of ferrite circulators and isolators*
38. Multifunctional silicon devices (abbr.)
39. Referring to a right triangle, the trigonometric function equal to the ratio between the side opposite a given angle, and the hypotenuse (pl.)
41. Chemical symbol for nickel
42. Length times width
44. Surface Mount Technology
45. Type of data conversion device (abbr.)
46. Ham's code for "Your net frequency is Low."
47. World's largest yearly convention of gadget and device manufacturers (abbr.)
48. Carrier-to-noise ratio (abbr.)
49. A common RS-232 serial bus command (abbr.)
50. Complex Instruction Set Computer
53. "Microwaves & __" magazine
55. Telex-Over-Radio (abbr.)
56. Chemical symbol for argon
57. Amplifier vendor in Palm Bay, FL, now part of Spectrum Microwave
60. Chemical symbol for scandium
61. Engineer's blood plasma
62. Electrically Alterable Read Only Memory
63. Sound frequency in the human hearing range (acr.)
64. General Mobile Radio Service (abbr.)
66. Weight (abbr.)
67. Rádio Nacional de Angola (abbr.)
68. Pure carrier (abbr.)
69. Microwaves & RF magazine (abbr.)
71. Enhanced Graphics Adapter
72. Direct Memory Access (abbr.)
73. Printer output resolution unit (abbr.)
75. Official Space Shuttle designation (abbr.)
77. Stock symbol for Advanced Micro Devices
78. Innovative Power Products, Holbrook, NY (abbr.)
80. Radio signal route
83. 300 Hz to 3 kHz in audio (abbr.)
85. Microprocessor vendor
87. 1.602E-19 Joules
88. Move in a raster pattern
91. Chemical symbol for ruthenium
93. Type of current
94. 6th Greek letter
96. World's first satellite navigation system, abbr.
97. Moon of Saturn discovered in 1672
99. Chemical symbol for scandium
100. Chemical symbol for aluminum
101. Switch position
103. Semiconductor and calculator company (abbr.)
104. Attenuator
106. 300 MHz to 3 GHz
107. Chemical symbol for dysprosium
109. Exponent that returns the original number
110. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)
111. Software description of an electronic component
112. Part of an optical cable bundle (pl.)
1. Area on a shaft for accommodating a setscrew (pl.)
2. Read-only (abbr.)
3. Home state of Los Alamos lab (abbr.)
4. Electrical overstress (abbr.)
5. Chemical symbol for chlorine
6. Integrated Services Digital Network (abbr.)
7. Min-to-max voltage of a waveform (abbr.)
9. Common shorthand reference for a capacitor
10. Type of flip-flop
11. Chemical symbol for nobelium
12. Short video segments
14. Electromagnetic (abbr.)
16. Relative power level unit (abbr.)
17. Chemical symbol for einsteinium
19. Chemical symbol for lawrencium
20. Computer communication scheme (abbr.)
23. One port of an amplifier
25. Chemical symbol for polonium
26. Boob tube (abbr.)
28. 2 Across + _________, manufacturer of attenuators, terminations, resistors, and diode detectors*
29. Passing certain frequencies and blocking others
30. Reduces in amplitude
32. 36 Across + _________, manufacturer of ferrite circulators and isolators *
33. Type of logic gate
34. Chemical symbol for neon
36. Negative temperature coefficient (abbr.)
37. Type of data conversion device (acr.)
39. Chemical symbol for tin
40. Chemical symbol for selenium
42. Automatic repeat request used in AMTOR (abbr.)
43. Logic family
51. FCC Part 15 rules apply in this band (abbr.)
52. Special diode type that can be switched (abbr.)
54. Fast Fourier transform (abbr.)
56. Flash caused by an electric current ionizing a gas or vapor
58. Bulk Acoustic Wave (acr.)
59. Discipline for aircraft navigation in low visibility environments (abbr.)
64. Key feature in a high level overvoltage protection device
65. Synchronous Digital Hierarchy
69. Lowest power level capable of being demodulated (abbr.)
70. Heatsink feature
71. Type of reconfigurable memory (abbr.)
74. Ratio of circumference to diameter
76. Chemical symbol for thallium
79. Compliment to a zero in a polynomial (pl.)
81. Analog-to-Digital (abbr.)
82. Coefficient of temperature (abbr.)
84. Network file transfer protocol (abbr.)
86. Attenuator topology (hyph.)
87. 30 GHz to 300 GHz
89. Chemical symbol for cesium
90. Type of current flow (abbr.)
92. Unit of capacitance (abbr.)
94. IC socket type for easy insertion & removal (abbr.)
95. A common battery cell size
97. Chemical symbol for rhodium
98. Ticker symbol for Analog Devices
100. Army-Navy specification prefix (acr.)
102. Chemical symbol for francium
103. Chemical symbol for tantalum
105. Decimeter (abbr.)
106. Electrical safety organization (abbr.)
108. Chemical symbol for ytterbium
109. Unix, Linux or Windows (abbr.)

Answer below

 

2015 Crosswords Archive
| 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 |
December 27
December 20
December 13
December 6
November 29
November 22
November 15
November 8
November 1
October 25
October 18
October 11
October 4
September 27
September 20
September 13
September 6
August 30
August 16
August 9
August 2
July 26
July 19
July 12
June 21
May 3
April 5
March 8
March 1
February 22
February 8
January 25
January 18
January 11
January 4

 

 

 

 

 

 

 

 

 

 

 

 

Science-Themed Crossword Puzzle Solution for October 11, 2015 - RF Cafe