Science & Engineering Crossword Puzzle
July 22, 2012

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.
2012 Crosswords Archive
Visit the Crossword Express website - RF CafeTake a break from the drudgery by trying 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.

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 & Engineering Crossword Puzzle for July 22, 2012 - RF Cafe


ACROSS DOWN
4. Powers pneumatic devices
7. Abbreviation for acknowledge (also a common word used by Bill the Cat)
9. Automatic Calibration System (abbr.)
10. Frequency Division Duplex
13. Computer Assisted Design and Development
15. Network department (abbr.)
16. Equalizer (abbr.)
17. 1000000 prefix
20. Generalized Multiprotocol Label Switching (abbr.)
24. A coherent monochrome light source
27. SIP x 2
28. Crystal surface
30. A three-terminal power semiconductor device noted for high efficiency and fast switching (abbr.)
32. Wire diameter unit (abbr.)
34. Ham abbreviation for "distant station"
35. Chemical symbol for helium
37. Software for mathematical calculations
39. 1/6 inch printer's measure
40. Chemical symbol for arsenic
41. BS__ - the degree held by many RF Cafe visitors
42. 1 GHz to 2 GHz
45. Trigger diode that conducts current only after its breakdown voltage has been exceeded momentarily (pl.)
48. A common battery cell size
50. Precipitate
51. Direct Memory Access (abbr.)
52. Automated Test Equipment (abbr.)
54. Finite Element Analysis (abbr.)
55. Pertaining to the moon
56. Chemical symbol for chlorine
57. International Reply Coupon (abbr.)
59. Chemical symbol for manganese
60. Chemical symbol for bismuth
62. ELI the ICE ___
63. Chemical symbol for chromium
64. Modulation type (abbr.)
66. First man to orbit the earth - Yuri ...
69. Did it with a mouse
73. 30 kHz to 300 kHz
75. One port of an amplifier
76. Method of sending high-speed digital signals on electric distribution wires, a Ham's nemesis (abbr.)
78. Device under test (abbr.)
79. Has a positive phase wrt a reference
81. The system than converts common website names to IP addresses (abbr.)
82. Lowest power level capable of being demodulated (abbr.)
83. Centimeter (abbr.)
85. Gallium nitride chemical symbol
87. Ticker symbol for Analog Devices
89. Semiconductor lamp
91. State _______ - A type of drawing used in computer science and related fields to describe the behavior of systems
94. Soften metal
96. Describes a switch that is making electrical contact
99. Changing
103. 10 decibels
104. Chemical symbol for beryllium oxide
105. PC follower
106. Chemical symbol for copper
107. Printer resolution abbreviation
108. Logic family
109. Measured
112. We just ______ a new contract.
115. Optical storage media
117. Electronic enclosure
120. Type of data conversion device (abbr.)
121. Engineering Change Order (abbr.)
123. One state of matter
124. Type of flip flop
126. Bands between RF and baseband
127. Global System for Mobile Communications (abbr.)
129. Fastener hardware vendor in Woodside, NY
131. Image file format name extension
133. Stock symbol for Lockheed Martin
134. "Calling any amateur radio station"
135. 300 kHz to 3 MHz
137. Unit of heat
138. Instrument for measuring current
140. Bandwidth (abbr.)
141. Multifunctional silicon devices (abbr.)
143. Heatsink feature
144. Unit of length (abbr.)
145. Filter type that blocks upper frequencies (abbr.)
146. Type of distribution, squared
148. Type of modulation (abbr.)
149. Ties a bundle of wires together
150. Colorado Springs military school (abbr.)
152. End of transmission (abbr.)
154. Design for Manufacturability (abbr.)
157. Sporadic E-layer ionospheric propagation (hyph.)
158. Chemical symbol for erbium
159. International Telegraphy and Telephony Consultative Committee
163. _____ Percy Maxim, founder of the ARRL
165. Filter type that blocks frequencies in a specified band (abbr.)
166. Logarithmic ratio (abbr.)
167. Type of current
168. The "Cad" part of NiCad
172. Chemical symbol for lanthanum
173. Chemical symbol for iron
174. U.K. equivalent of the IEEE
176. Adjacent Channel Power Ratio (abbr.)
177. Swap ____, a Ham's flea market
178. Keyboard key
181. Major U.S. space & communications company
183. Mr. Joule's first name
184. Name given to logic that surrounds a microprocessor
186. Unit of length (abbr.)
187. Local Oscillator (abbr.)
188. No insulation
189. Global System for Mobile Communications (abbr.)
191. Enhanced Graphics Adapter
193. Finite-Element Model
194. Computer communication scheme (abbr.)
1. High frequency semiconductor
2. The "As" in GaAs
3. Chemical symbol for berkelium
5. Multifunctional silicon devices (abbr.)
6. Band between RF and BB
7. Agilent's EE design software (abbr.)
8. Chemical symbol for cadmium
11. Decimeter (abbr.)
12. Keyboard key
13. Printer output resolution unit (abbr.)
14. International phonetic alphabet letter "A"
18. Greek letter used for coefficient of reflection
19. File name extension for an ASCII file
21. Chemical symbol for mendelevium
22. Amateur radio enthusiast
23. Decibels above or below a dipole antenna (abbr.)
25. 1/6 inch printer's measure
26. Theoretical
29. Software engineering tool (abbr.)
31. Key feature in a high level overvoltage protection device
33. First name of a British scientist of falling apple fame
36. Last statement in a BASIC program
38. Heterojunction Bipolar Transistor
39. Electronics Industry Association (abbr.)
41. ECM response
42. Family of ICs with a certain component density level (abbr.)
43. Connector vendor, now owned by FCI in St. Louis, Missouri
44. Decimeter (abbr.)
45. Morse Code for "from"
46. Encased in a protective covering
47. Hub of the solar system
49. Ham radio organization (abbr.)
52. Soften metal
53. Extended Binary-Coded Decimal Interchange Code (abbr.)
58. Software drafting tool (abbr.)
59. 1/000 of an inch
61. Precision landing system (abbr.)
62. Akin to EEs, CEs, AEs, etc.
64. Army-Navy specification prefix
65. Field Programmable Gate Array (abbr.)
67. Type of microwave diode
68. PC follower
70. Chemical symbol for cadmium
71. Sharp bend in I-V curve
72. Type of current
74. A BPF specification (abbr.)
77. Greek letter used for wavelength (pl.)
80. Analog-to-Digital (abbr.)
82. The "M" in ISM
84. Chemical symbol for mercury
86. Part of a screw that engages the driver (pl.)
88. Unit of time (pl.)
90. Stock symbol for Boeing
91. Logarithmic unit of power
92. U.K. equivalent of the IEEE
93. ___-AZIMUTH telescope mount
94. Online service
95. Automated Test Equipment (abbr.)
97. Display type
98. Direct Digital Synthesis (abbr.)
100. ELI the ICE ___
101. Current-voltage phase mnemonic
102. Logic gate output configuration (abbr.)
110. Chemical symbol for europium
111. Erbium Doped Fiber Amplifier (abbr.)
113. Asynchronous Digital Subscriber Line (abbr.)
114. Keyboard key
115. Its chemical symbol is Co
116. 1E6 bits per second
118. Mechanical engineering organization (abbr.)
119. Galilean moon
122. Chemical symbol for cobalt
125. Unit of length (abbr.)
127. Gallium nitride chemical symbol
128. Chemical symbol for molybdenum
129. Image file format name extension
130. Nuclear explosion byproduct harmful to electronic (abbr.)
131. Electronics manufacturer with "meatball" logo
132. Method of self-detection and self-fixing transmission of digital data (abbr.)
134. Pure carrier (abbr.)
136. Software storage unit
137. Complex Instruction Set Computer
139. Moon of Saturn discovered in 1672
140. Graphics file types
142. Plug-ins for computer buses
143. Method of self-detection and self-fixing transmission of digital data (abbr.)
147. FCC Part 15 rules apply in this band (abbr.)
148. Part of an optical cable bundle
150. System for guiding aircraft (abbr.)
151. Unit of length (abbr.)
153. The unit of electrical resistance
155. Unit of inductance (abbr.)
156. 1/000 of an inch
160. Theoretical
161. Common shorthand reference for a capacitor
162. Color quality
164. Radio location system
168. Imaging device (abbr.)
169. Small motored tool for model drilling, grinding, shaping, etc. (pl.)
170. Add an ion during semiconductor processing
171. Akin to EEs, CEs, AEs, etc.
174. Satellite of Jupiter discovered by Galileo
175. Unit of energy
179. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)
180. Front edge of a wing (abbr.)
182. Cable termination type
183. Intentionally block communications signals
185. Chemical symbol for einsteinium
188. Chemical symbol for beryllium
190. 1/000 of an amp (abbr.)
192. Chemical symbol for gallium
193. Chemical symbol for francium 


See solution below












Science & Engineering Crossword Puzzle Solution for July 22, 2012 - RF Cafe