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Engineering & Science Crossword Puzzle

July 10, 2011

2011 Engineering & Science Crossword Puzzles

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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A cruciverbalist is a person who is skilled at creating or solving crossword puzzles. The term is a combination of "cruci-" from "crucifix," meaning cross, and "verbalist" from "verbal," indicating a person who deals with words. cruciverbalists are often responsible for designing crossword puzzles, and they possess a deep knowledge of wordplay, vocabulary, and the techniques used in constructing and solving crosswords. They aim to make puzzles that are both challenging and enjoyable for crossword enthusiasts.





















































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

Engineering Crossword Puzzle, 7/10/2011 - RF Cafe

<You might want to click for a larger image prior to printing this one!>

1. Complex resistance

8. He invented the triode vacuum tube

16. Chemical symbol for aluminum

17. BSEE + 2 years

20. A circuit that takes two or more input signals, and produces an output that includes the sum and difference of those signal frequencies

21. Opposite of a LO

23. It has units of degrees or radians

24. Centimeter (abbr.)

25. Unit of temperature

28. High Data Rate

29. Small unit of capacitance (abbr.)

31. Chemical symbol for arsenic

33. Online service

34. Modulation type (abbr.)

35. Unit of current

37. Chemical symbol for krypton

38. U.S. Spectrum allocation agency

39. Programmable Logic Device (abbr.)

41. Word used in describing 2-D and 3-D object dimensions

42. Type of memory

44. Type of data storage IC

46. Voids

49. Upper frequency (abbr.)

50. Constellation : The scorpion

53. PC follower

55. Unit of weight

56. Variable crystal oscillator (abbr.)

57. Test equipment (abbr.)

59. Switch position

60. Ultra Fine Pitch Technology (abbr.)

61. A statement that has been proven on the basis of previously established statements

62. Digital encoding of the transmission mode in the vertical sync portion of an SSTV image (abbr.)

65. Volt-ohmmeter (abbr., pl.)

67. Specialized mobile radio (abbr.)

69. Unit of heat

71. Chemical symbol for helium

72. German astronomer who developed a mathematical relationship between planetes and distance from sun

75. Chemical symbol for rhodium

76. Totals

77. Chemical symbol for praseodymium

78. European Telecommunications Standards Institute (abbr.)

79. Chemical symbol for argon

80. Government program to bring electricity to farms (abbr.)

81. Chemical symbol for gadolinium

83. Type of data conversion device (abbr.)

85. Official Space Shuttle designation (abbr.)

86. Constellation : The lion

87. A common battery cell size

88. Moon of Saturn discovered in 1789

91. High frequency semiconductors

94. First man to orbit the earth - ____ Gagarin

96. Logic gate output configuration (abbr.)

99. Chemical symbol for cadmium

100. Type of computer display (abbr.)

101. Type of current flow (abbr.)

102. Time delay (abbr.)

103. Lamp cord

105. Ham's code for "What is your location?"

106. Type of modulation (abbr.)

108. Carrier-to-noise ratio (abbr.)

109. Electronics manufacturer with "meatball" logo

111. Brand of hobby knife

113. BER, 8 bits at a time

115. Chemical symbol for silver

116. Discipline for aircraft navigation in low visibility environments (abbr.)

118. Chemical symbol for xenon

119. Unit of length (abbr.)

121. Part of a FOR loop

122. Readability, Signal, and Tone (QoS report type)

123. Programmable logic device (abbr.)

125. Type of programmable device (abbr.)

127. Hit a component with an electrostatic discharge

129. A keyboard key

131. 36 inches

133. Direct Memory Access (abbr.)

134. Method of self-detection and self-fixing transmission of digital data (abbr.)

136. Chemical symbol for erbium

137. Chemical symbol for nobelium

138. Chemical symbol for platinum

139. Ham's code for "Are my signals fading?"

140. Chemical symbol for radon

141. Automated Test Equipment (abbr.)

142. Radio Amateur Satellite Corporation (abbr.)

147. Chemical symbol for tin

149. Master Earth Station (abbr.)

150. Chemical symbol for mendelevium

152. Ham's code for "Is my transmission being interferred with?"

153. One sixtieth of a degree of angular measurement (pl.)

155. Unit of inductance (abbr.)

157. Electrical safety organization (abbr.)

158. Scheme to maintain proper frequency (abbr.)

161. Chemical symbol for strontium

163. Mate to a bolt

165. Inventor of the pre-quantum atomic model

167. Switch type with gauranteed default position

170. Constellation : The scales

174. Chemical symbol for lanthanum

175. Below ELF

176. Scheme to maintain proper frequency (abbr.)

179. Logic family (abbr.)

180. BS__ - the degree held by many RF Cafe visitors

181. Type of digital filter (abbr.)

184. BS__ - the degree held by many RF Cafe visitors

185. Apollo 11 astronaut ____ Armstrong

186. Test equipment (abbr.)

187. Geometrical figure defined as a curve in which every point is equidistant from a fixed point

188. Method of connecting redundant power supplies

189. High power microwave amplifiers

193. Chemical symbol for nobelium

195. Positive voltage lead color

196. 24 hours

197. Transportation accident investigation agency (abbr.)

198. 10^1 numerical prefix (pl.)

199. Speaker for generating high frequencies

202. Asynchronous Communication Interface Adapter (abbr.)

206. Constellation : The lion

207. Boob tube (abbr.)

209. Relative power level unit (abbr.)

211. Type of digital filter (abbr.)

212. Chemical symbol for silicon

213. ________ function, mathematically relates output to input

215. Chemical symbol for neptunium

216. Hot fuel-proof dope type

218. Feedback system used to maintain constant level (abbr.)

219. System for guiding aircraft (abbr.)

220. Chemical symbol for californium

221. Precision landing system (abbr.)

222. A common RS-232 serial bus command (abbr.)

224. Type of flip-flop

225. A coherent monochrome light source (pl.)

227. Chemical symbol for lutetium

228. Electrical overstress (abbr.)

230. Chemical symbol for niobium

231. Ratio of circumference to diameter

232. Internet address (abbr.)

234. Test equipment vendor

236. Equalizer (abbr.)

238. Mr. Ohm's first name

240. Chemical symbol for tin

241. Adjustment dial (pl.)

244. Joint Tactical Radio Service

246. Switch position

247. Reads from disk

248. Area outside the stopband, pl.

2. RF & Microwaves, RF Design, Microwave Journal, etc.

3. Oscillator type that is referenced to an external source (abbr., pl.)

4. Decimeter (abbr.)

5. File name extension for an ASCII file

6. Electric enclosure standard organization (abbr.)

7. European equivalent to the U.L.

9. Electromagnetic (abbr.)

10. Thin layer of material deposited a surface

11. Shorthand for oxygen

12. The "R" in RPN

13. Chemical symbol for erbium

14. Amplifier linearity specification (abbr.)

15. 1e-6 mA

18. Front edge of a wing (abbr.)

19. Lowest operational frequency of a waveguide (pl.)

22. Infrared (abbr.)

25. Chemical symbol for chlorine

26. Direction of carbon fiber strands

27. Type of component package (abbr.)

28. Pliers-like surgical tool used in the electronics lab

29. A BPF specification (abbr.)

30. U.S. Spectrum allocation agency

32. Coaxial cable company in Port Murray, NJ

36. Radio Amateurs of Canada (abbr.)

37. Cutting instrument

38. Type of screw (2 wds.)

39. Peak Inverse Voltage

40. Digital storage oscilloscope (abbr.)

41. Semiconductor device type (abbr.)

43. Maximum Usable Frequency

45. Chunks of space rocks

47. Referring to atoms

48. Aircraft navigation system (abbr.)

51. Chemical symbol for plutonium

52. One type of electron spin

54. Greek symbol commonly used to represent angles

58. Electronic Variable Optical Attenuator (abbr.)

59. Greek letter used for resistance

62. Diode type whose capacitance is controlled by a reverse bias

63. One port of an amplifier

64. Signal-to-noise ratio (abbr.)

66. Opposite of I.D.

67. Metal or plastic rod that connects a potentiometer wiper to a knob

68. Plane figure that has four straight sides, and four right angles (pl.)

69. Data transmission pathway

70. FCC's Universal Licensing System (abbr.)

72. Intentionally block communications signals

73. Amateur radio enthusiast

74. Chemical symbol for beryllium

77. Scheduling graph type

82. Type of data conversion device (abbr.)

84. Morse Code for "from"

86. Chemical symbol for lutetium

89. Band between RF and BB

90. Synchronous Digital Hierarchy

91. Image file format name extension

92. Chemical symbol for strontium

93. Special diode type that can be switched (abbr.)

94. Yttrium Aluminum Garnet

95. Slang for an Amateur License, pl.

96. Imaging device (abbr.)

97. Part of a FOR loop

98. Ham abbreviation for transceiver

104. Digital intelligence

105. Unit of liquid measure (abbr.)

107. 1/000 of an inch

108. Common shorthand reference for a capacitor

110. Lays bare, such as a wire

112. Determined the similarity of two waveforms as a function of a time

113. Weight (abbr.)

114. Angular speed unit

116. Multifunctional silicon devices (abbr.)

117. Return-to-Zero (abbr.)

120. 1E6 nanoseconds

124. A common battery cell size

126. Study for a test just before taking it

128. Army-Navy specification prefix

130. "Calling any amateur radio station"

131. Chemical symbol for ytterbium

132. The system than converts common website names to IP addresses (abbr.)

133. Logarithmic unit of power

134. Chemical symbol for iron

135. CW signals onto which information is modulated

143. Unit of length (abbr.)

144. Chemical element abbreviated Sn

145. One port of an amplifier

146. PCB material

148. Type of logic gate

149. Maximum Usable Frequency

151. Singulated piece of IC wafer

152. Ham's code for "Can you acknowledge receipt?"

154. Greek letter used for frequency

156. Majority carrier in p-type material

158. Metal mixture

159. Start frequency (abbr.)

160. Software engineering tool (abbr.)

162. Chemical symbol for francium

164. Units of heat

166. 3 MHz to 30 MHz

168. Network department (abbr.)

169. 10^-15 numerical prefix

171. Chemical symbol for beryllium oxide

172. Automatic Calibration System (abbr.)

173. Mate a plug to a jack

174. Geometric entity with only length, pl.

176. Powers pneumatic devices

177. Describes the movement of a spacecraft in space when there is no thrust from the engines

178. Imaging device (abbr.)

181. A three-terminal power semiconductor device noted for high efficiency and fast switching (abbr.)

182. One port of an amplifier

183. Positive voltage lead color

190. Chemical symbol for arsenic

191. Chemical symbol for tantalum

192. Irratiated cosmic gas

194. Trigger diode that conducts current only after its breakdown voltage has been exceeded momentarily (pl.)

197. After Uranus

200. Gold connection to a die

201. Electronics Industry Association (abbr.)

203. Chemical symbol for chromium

204. Army-Navy specification prefix

205. AnAngle described by hypotenuse/opposite sides of a right triangle

206. Low Noise Amplifier (abbr.)

208. 3 kHz to 30 kHz

209. Antenna gain unit (abbr.)

210. A common RS-232 serial bus command (abbr.)

214. Enhanced Graphics Adapter

217. Effective Radiated Power (abbr.)

220. Describes the action of cleaving a crystal plane

223. Semiconductor and calculator company (abbr.)

226. Airfoil shapers

227. Chemical symbol for lithium

228. Chemical symbol for europium

229. Adjusts a pot

230. A common lamp tube gas

232. Unit of time (abbr.)

233. RĂ¡dio Nacional de Angola (abbr.)

235. Chemical symbol for scandium

237. Ham's code for "Shall I send more slowly?"

239. Chemical symbol for gallium

241. Unit of frequency (archaic, abbr.)

242. Unix, Linux or Windows (abbr.)

243. Chemical symbol for selenium

244. Intel x86 command for " jump if above"

245. Chemical symbol for antimony

See solution below

Engineering Crossword Puzzle Solution, 7/10/2011 - RF Cafe

Amplifier Solutions Corporation (ASC) - RF Cafe

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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 tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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