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Engineering & Science Crossword Puzzle July 10, 2011
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Reproduction
of this puzzle without the express permission of RF Cafe is prohibited.
![Engineering Crossword Puzzle, 7/10/2011 - RF Cafe](images/crossword-engineering-7-10-2011-rf-cafe-s.gif)
<You might want to click for a larger image
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ACROSS |
DOWN |
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. Rádio 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
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