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RF Cafe Engineering & Science Crossword Puzzle
November 17, 2019

For two decades, 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. This November 17, 2019, puzzle uses a database of thousands of words which I have 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. 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.

* Click here for a list of RF Cafe advertisers.

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 November 17, 2019 - RF Cafe 

<click for full size to print>

ACROSSDOWN
2. Robert ______-Watt, "Father of Radar"
5. The UK's equivalent of the FCC
8. ______ velocity - speed necessary to become free of the Earth's gravitational force
13. Digital storage oscilloscope (abbr.)
15. A measure of receiver quality (abbr.)
16. Discipline for aircraft navigation in low visibility environments (abbr.)
18. Below ELF
21. Slang for when a professor hints at an exam problem (abbr.)
22. Radio frequency interference (abbr.)
24. Morse Code for "from"
25. Unit of inductance (abbr.)
27. Thin layer of material deposited a surface
29. Personal Digital Cellular
31. Unit of length equal to 5.5 yards (pl.)
33. Part of this website's title
35. Mate to a TX
36. Its chemical symbol is Fe
38. Unit of time (abbr.)
39. Aircraft tracking system
41. Chemical symbol for beryllium
42. Part of this website's title
44. Radio Amateurs of Canada (abbr.)
45. Effective frontal area presented to a microwave interrogation system (abbr.)
46. Greek letter
47. Numerical basis for decibels (abbr.)
48. Precision approach radar (abbr.)
49. Signal-to-noise ratio (abbr.)
50. Fail-____ switch
53. Unit of capacitance (abbr.)
55. Family of ICs with a certain component density level (abbr.)
56. Chemical symbol for polonium
57. Complex Instruction Set Computer
60. Chemical symbol for tantalum
61. Contains imperfections in a crystal lattice
62. Mr. Pascal's first name
63. Chemical symbol for copper
64. Temperature-compensated crystal oscillator (abbr.)
66. Army-Navy specification prefix
67. Type of digital filter (abbr.)
68. Chemical symbol for nickel
69. Electric enclosure standard organization (abbr.)
71. Virtual Private Network
72. Newest buzz phrase for ubiquitous remote control and monitoring of everything (abbr.)
73. High Data Rate
75. Circuit for maintaining constant voltage (abbr.)
77. Telex-Over-Radio (abbr.)
78. Unit of frequency
80. Mr. Gauss' first name
83. Opposite of I.D.
85. Brand of hobby knife
87. Chemical symbol for iron
88. Ad-hoc on demand distance vector (abbr.)
91. Chemical symbol for strontium
93. Front edge of a wing (abbr.)
94. Amateur Radio Direction Finding (abbr.)
96. Software engineering tool (abbr.)
97. Most frequently occurring number in a series of numbers
99. Home state of Los Alamos lab (abbr.)
100. Filter type that blocks lower frequencies (abbr.)
101. FCC Part 15 rules apply in this band (abbr.)
103. European equivalent to the U.L.
104. Half of DSB
106. Specialized mobile radio (abbr.)
107. Chemical symbol for gallium
109. Transmit Incremental Tuning (abbr.)
110. Apollo 11 astronaut Buzz ______
111. The gaseous state of water
112. International phonetic alphabet letter "Y"
1. Summer
2. Write-Once (abbr.)
3. Chemical symbol for tin
4. Switch position
5. Type of logic gate
6. Computer Assisted Design and Development
7. 1E6 nanoseconds
9. Official Space Shuttle designation (abbr.)
10. "Calling any amateur radio station"
11. Chemical symbol for erbium
12. A circuit that takes two or more input signals, and produces an output that includes the sum and difference of those signal frequencies
14. Chemical symbol for selenium
16. Precision landing system (abbr.)
17. Type of modulation (abbr.)
19. Chemical symbol for lawrencium
20. Wireless transmitting device that opens a car door remotely
23. Chemical symbol for francium
25. Chemical symbol for praseodymium
26. Chemical symbol for holmium
28. A material which is a poor conductor of heat or electricity
29. English theoretical physicist who created the delta function now named after him
30. Adjust to meet a specification
32. Left a film on the surface
33. Chemical symbol for radium
34. Small unit of capacitance (abbr.)
36. Multifunctional silicon devices (abbr., pl.)
37. The design component of total product cost (abbr.)
39. Chemical symbol for radium
40. Read-only (abbr.)
42. Error checking scheme (abbr.)
43. A keyboard key
51. System for guiding aircraft (abbr.)
52. Facsimile
54. Cooling device
56. Part of a male connector
58. Current-voltage phase mnemonic
59. Add two or more inputs
64. RF connector type
65. Lubricant
69. Gun safety and education organization (abbr.)
70. Amateur radio operating mode for sharing realtime video (abbr.)
71. "RF Stencils for _____," created by RF Cafe for block diagram, circuit, and system conceptual drawings
74. Ham abbreviation for "distant station"
76. Local Oscillator (abbr.)
79. Numerical prefix for 10E-26
81. Chemical symbol for aluminum
82. One component of a complex number (abbr.)
84. Direct Digital Synthesis (abbr.)
86. RF ____, the world's best engineering website
87. BASIC looping keyword
89. Switch position
90. Decimeter (abbr.)
92. Type of flip-flop
94. Anatech Electronics Inc., (abbr.)
95. Start frequency (abbr.)
97. Unit of length (abbr.)
98. Enhanced Graphics Adapter
100. Opposite of a LO
102. 1/000 of an amp (abbr.)
103. Chemical symbol for chromium
105. Filter type that blocks frequencies in a specified band (abbr.)
106. Type of component package (abbr.)
108. Army-Navy specification prefix
109. Chemical symbol for xenon 

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 Puzzle Solution November 17, 2019 - RF Cafe 

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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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