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MECA Electronics Attenuators

RF Cafe Engineering & Science Crossword Puzzle
May 19, 2019

Since 2000, I have been creating custom engineering- and science-themed crossword puzzles for the brain-exercising benefit and pleasure of RF Cafe visitors who are fellow cruciverbalists. The jury is out on whether or not this type of mental challenge helps keep your gray matter from atrophying in old age, but it certainly helps maintain your vocabulary and cognitive skills at all ages. A database of thousands of words has been built up over the years and contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, etc. You will never find a word taxing your knowledge of a numbnut soap opera star or the name of some obscure village in the Andes mountains. You might, however, encounter the name of a movie star like Hedy Lamarr or a geographical location like Tunguska, Russia, for reasons which, if you don't already know, might surprise you.

cruciverbalist: [noun]  cruci- ("cross") +‎ verbal ("words") +‎ -ist ("agent, person") -- A person who constructs or works crosswords.


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

Engineering & Science Crossword Puzzle May 19, 2019 - RF Cafe

<click for full size to print>

ACROSSDOWN
1. Digital circuit type for making counters (1 ltr., 2 wds.)
8. Type of current flow in semiconductor when breakdown voltage is exceeded
16. Chemical symbol for lanthanum
17. Chart types
20. Cambridge University _____, technical book publisher
21. Unit of length (abbr.)
23. Part of CRC
24. Read-only (abbr.)
25. Regarding light transmission
28. Semiconductor lamp
29. Chemical symbol for praseodymium
31. Chemical symbol for xenon
33. "Texting" (abbr.)
34. Cyanide (abbr.)
35. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)
37. Chemical symbol for selenium
38. CDMA Development Group (abbr.)
39. Below ELF
41. Filter type that blocks upper frequencies (abbr.)
42. Mathematical basis for calculating noise power for a given bandwidth and temperature (abbr.)
44. Chemical symbol for beryllium oxide
46. Television (2 wds.)
49. Chemical symbol for erbium
50. Multi-layered PCB
53. Chemical symbol for lawrencium
55. 1/000 of an inch
56. On-the-air meeting of hams at a set time, day and radio frequency
57. Bandwidth (abbr.)
59. Rate of a radar transmitter's output waveform (abbr.)
60. Target indication on a radar display
61. Named a software object
62. MS's server-side script engine for dynamically-generated web pages (abbr.)
65. CB slang for CB radio or antenna
67. ELI the ICE ___
69. Automatic network analyzer (abbr.)
71. Multifunctional silicon devices (abbr.)
72. Evangelista __________, inventor of the mercury barometer
75. Chemical symbol for nobelium
76. Reserves for
77. Galilean moon
78. 10E1 numerical prefix
79. Electromagnetic (abbr.)
80. Manufacturer of project boxes
81. Chemical symbol for antimony
83. Computer communication scheme (abbr.)
85. Total radiated power (abbr.)
86. Type of data conversion device (abbr.)
87. Chemical symbol for einsteinium
88. First name of a British scientist of falling apple fame
91. Connector vendor in Danbury, CT
94. No insulation
96. Low Noise Amplifier (abbr.)
99. Chemical symbol for terbium
100. Shorthand for liquid oxygen
101. Chemical symbol for scandium
102. Unit of time (abbr.)
103. Configuring a switch to break electrical contact
105. Data transmission pathway
106. European equivalent to the U.L.
108. Positive voltage lead color
109. Chemical symbol for radium
111. Pertaining to the moon
113. Units of 1000 CPS
115. Type of current
116. Peripheral Component Interface (abbr.)
118. Decimeter (abbr.)
119. Local Oscillator (abbr.)
121. Chemical symbol for nobelium
122. A keyboard key
123. Colorado Springs military school (abbr.)
125. An ellipse has two of them
127. Rádio Nacional de Angola (abbr.)
129. Indium phosphide (abbr.)
131. Early operating system (still popular)
133. Filter type that blocks upper frequencies (abbr.)
134. Push to Talk (abbr.)
136. Chemical symbol for neon
137. Filter type that blocks lower frequencies (abbr.)
138. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr.)
139. 3 GHz to 30 GHz
140. Chemical symbol for silicon
141. Greek letter
142. Wideband CDMA
147. Chemical symbol for tin
149. On-the-air meeting of hams at a set time, day and radio frequency
150. Opposite of O.D.
152. 10 decibels
153. Like a crystal
155. Band between RF and BB
157. Part of this website's title
158. Once around a circuit
161. Akin to an EE, CE, AE, etc.
163. Stock symbol for Advanced Micro Devices
165. RF computer network
167. Reserve memory for
170. Positively doped silicon
174. Chemical symbol for tantalum
175. End of transmission (abbr.)
176. Type of computer display (abbr.)
179. One port of an amplifier
180. Morse Code for "from"
181. Telex-Over-Radio (abbr.)
184. Radio signals from the cosmos (abbr.)
185. Circuit path with very high or infinite impedance
186. Pure carrier (abbr.)
187. Prefix meaning temperature-related
188. Unit of inductance (abbr.)
189. Vacuum tube type for a high power, high frequency transmitter (pl.)
193. Chemical symbol for lanthanum
195. Innovative Power Products, Holbrook, NY (abbr.)
196. Common average used for sinewaves (abbr.)
197. Cause a circuit breaker to open
198. World's largest yearly convention of gadget and device manufacturers (abbr.)
199. Type of ground strap wire
202. Straight line emanating from a point source (pl.)
206. Amateur Radio Association (abbr.)
207. Equalizer (abbr.)
209. Digital encoding of the transmission mode in the vertical sync portion of an SSTV image (abbr.)
211. Engineering Change Notice (abbr.)
212. Greek letter
213. Grow in amplitude
215. Chemical symbol for lithium
216. Prevented the direct physical transfer of signals from one point to another
218. End of soldering iron
219. Printer output resolution unit (abbr.)
220. Chemical symbol for calcium
221. Anatech Electronics Inc., (abbr.)
222. Original Equipment Manufacturer (abbr.)
224. Type of flip-flop
225. Type of reconfigurable memory (abbr., pl.)
227. Last stage in a transmitter (abbr.)
228. Unit of energy
230. Network department (abbr.)
231. Morse Code for "from"
232. Measure of source / load mismatch (abbr.)
234. Device for interpreting encoded data
236. Switch position
238. Mr. Bohr's first name
240. Word used in describing 2-D and 3-D object dimensions; i.e., 10 mm __ 25 mm
241. The "S" in SOIC
244. Its unit is the erg or joule
246. 1.602E-19 Joules
247. E=CM 2 guy
248. The dit-dah-dit sent at the end of a transmission (2 wds.)
2. A type of coax cable (semi-rigid, e.g.)
3. Tie a bundle of wires together
4. Min-to-max voltage of a waveform (abbr.)
5. Type of digital filter (abbr.)
6. Low altitude earth orbit
7. Unix, Linux or Windows (abbr.)
9. Abbreviation for peak voltage
10. Amateur Radio Direction Finding (abbr.)
11. Front edge of a wing (abbr.)
12. Multivibrator type
13. Unit of time (abbr.)
14. Gary Breed's fine magazine on RF & microwaves topics (abbr.)
15. Unit of frequency (archaic, abbr.)
18. One type of electron spin
19. CRT electron beam scan type (pl.)
22. Time delay (abbr.)
25. Unix, Linux or Windows (abbr.)
26. ___/IP scheme for networked connectivity
27. One port of an amplifier
28. Constellation : The lesser lion (3,5)
29. Chemical symbol for palladium
30. Computer monitor cable type (abbr.)
32. Fraction of incident light or radiation reflected by a surface or body
36. Finite Element Analysis (abbr.)
37. Ratio of a mechanical drawing
38. What atoms did in a particle accelerator
39. Hub of the solar system
40. Semiconductor device type (abbr.)
41. Opposite of USB
43. Notch type filter (abbr.)
45. Reverse-engineer an IC
47. Greek letter used for resistance (pl.)
48. Lubricant
51. Chemical symbol for niobium
52. Semiconductor and calculator company (abbr.)
54. Radio Amateur Civil Emergency Service (abbr.)
58. Fuse metals together using heat
59. Geometric solid having two ends which are similar, equal, and parallel rectilinear figures, and sides which are parallelograms
62. The rotating part of a motor
63. Chemical symbol for silicon
64. Substrate for mounting components (abbr.)
66. Chemical symbol for aluminum
67. Connector vendor
68. Small unit of time
69. ___-AZIMUTH telescope mount
70. Test document for verifying proper function (abbr.)
72. Television Interference (abbr.)
73. Government program to bring electricity to farms (abbr.)
74. Chemical symbol for europium
77. International Amateur Radio Union (abbr.)
82. Method of sending high-speed digital signals on electric distribution wires, a Ham's nemesis (abbr.)
84. Army-Navy specification prefix
86. 10E1 numerical prefix
89. Type of component package (abbr.)
90. Unlicensed radio type for personal and business use (abbr., pl.)
91. Scheme to maintain proper frequency (abbr.)
92. Chemical symbol for holmium
93. Display type
94. Digital transmission figure of merit (abbr.)
95. Administers
96. Low Noise Amplifier (abbr.)
97. Chemical symbol for nickel
98. Circuit that reduces interference (abbr.)
104. Type of microwave diode
105. Stock symbol for Boeing
107. Enhanced Graphics Adapter
108. Radio Direction Finding (abbr.)
110. Between-series connector
112. Minimum noise power level (2 wds.)
113. Unit of frequency (archaic, abbr.)
114. Hit a component with an electrostatic discharge
116. Ratio of circumference to diameter
117. Infrared (abbr.)
120. Switch position
124. Fast Fourier transform (abbr.)
126. Counter ElectroMotive Force (abbr.)
128. Unit of inductance (abbr.)
130. Unit of time (abbr.)
131. Unit of capacitance (abbr.)
132. Transmit Incremental Tuning (abbr.)
133. Family of ICs with a certain component density level (abbr.)
134. Chemical symbol for plutonium
135. Speaker for generating high frequencies (pl.)
143. Chemical symbol for chlorine
144. A common battery cell size
145. One system's phonetic letter "z"
146. In Geometry, what is a fixed line used in formulating the definition of a curve or surface
148. Negation prefix
149. Gun safety and education organization (abbr.)
151. Singulated piece of IC wafer
152. Graphics file extension
154. Centimeter (abbr.)
156. What current is said to do
158. One of the first commercial software spreadsheets, (w/123)
159. Type of current flow (abbr.)
160. Attenuator
162. Internet protocol (abbr.)
164. Its chemical symbol is V
166. PC follower
168. Chemical symbol for lutetium
169. Trans European Trunked RAdio
171. Elemental compound used for microwave frequency reference oscillators (abbr.)
172. Electrical overstress (abbr.)
173. Its chemical symbol is I
174. Teletypewriter exchange service
176. Type of distribution, squared
177. Receiver/transmitter that listens for a transmission and re-transmits it
178. Total radiated power (abbr.)
181. Enter data using the keyboard
182. Type of logic gate
183. Radio Amateurs of Canada (abbr.)
190. Opposite of a LO
191. Test equipment (abbr.)
192. The "N" in SNR (pl.)
194. Search engine
197. Caused a circuit breaker to open
200. The imaginary part of a complex quantity
201. Logic family
203. Army-Navy specification prefix
204. Chemical symbol for strontium
205. Type of reconfigurable memory (abbr., pl.)
206. Circuit for maintaining constant voltage (abbr.)
208. Ham's code for "Answer in prearranged order."
209. Circuit element connecting PCB layers
210. Semiconductor On Insulator (abbr.)
214. Half of a DIP
217. U.S. military organization (abbr.)
220. Software drafting tool (abbr.)
223. BS__ - the degree held by many RF Cafe visitors
226. 6.02x10E23 of anything
227. Chemical symbol for polonium
228. Chemical symbol for erbium
229. Stock symbol for Google
230. Institute of Electrical and Electronics Engineers
232. Chemical symbol for antimony
233. 3-phase transformer configuration
235. Modern battlefield technique (abbr.)
237. The design component of total product cost (abbr.)
239. Type of component package (abbr.)
241. Chemical symbol for tin
242. PC follower
243. Chemical symbol for lithium
244. Write-Once (abbr.)
245. Chemical symbol for krypton

See solution below

 

2019 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.

2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | Sudoku

December 29

December 22

December 15

December 8

December 1

November 24

November 17

November 10

November 3

October 27

October 20

October 13

October 6

September 29

September 22

September 15

September 8

September 1

August 25

August 18

August 11

August 4

July 28

July 21

July 14

July 7

June 30

June 23

June 16

June 9

June 2

May 26

May 19

May 12

May 5

April 28

April 21

April 14

April 7

March 31

March 24

March 17

March 10

March 3

February 24

February 17

February 10

February 3

January 27

January 20

January 13

January 6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Engineering & Science Crossword Solution May 19, 2019 - RF Cafe

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