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RF Cafe Engineering & Science Crossword Puzzle
May 12, 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 12, 2019 - RF Cafe

<click for full size to print>

ACROSS DOWN
1. Means or path by which a radio signal travels from a transmitting station to a receiving station
8. Amateur radio operators
9. Do a total memory transfer
11. Type of logic gate (pl.)
12. L-C resonating circuits
14. Logic family (abbr.)
15. Chemical symbol for beryllium
16. Filter type that blocks frequencies in a specified band (abbr.)
18. Flash of light which occurs when an ionizing particle strikes a fluorescent screen
20. Chemical symbol for chromium
21. Unit of time (abbr.)
22. Type of data conversion device (abbr.)
25. Part of CAD
26. Logical negation operator
28. Scheduling graph type
30. Hits a component with an electrostatic discharge
31. Ability to store a charge
34. Spurious RF products created by metal joints (abbr.)
35. Automatic network analyzer (abbr.)
37. End of Life (abbr.)
39. Largest broadcaster in the UK (abbr.)
41. Miniature threaded RF connector
42. One of the Ws in WWW
43. Image file format name extension
47. Logic gate output configuration (abbr.)
49. Orbit configuration whereby satellite flies over the Earth's poles
52. International phonetic alphabet letter "G"
53. RF integrated circuit (abbr.)
55. Exponent that returns the original number
56. Term used to interrupt a conversation on a repeater to indicate that there is an emergency or urgent message
58. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)
59. Chemical symbol for praseodymium
60. Unit of time (abbr.)
62. Antenna structure that connects directly to the feed line (2 wds.)
63. European equivalent to the U.L.
64. Chemical symbol for erbium
65. Radio frequency interference (abbr.)
68. Force required to impart an acceleration of one centimeter per second per second to a mass of one gram (pl.)
70. Airport Surveillance Radar (abbr.)
72. Digital intelligence
74. Imaging device (abbr., pl.)
75. Maximally flat filter response
1. Precision approach radar (abbr.)
2. Common average used for sinewaves (abbr.)
3. Unix, Linux or Windows (abbr.)
4. Gallium nitride chemical symbol
5. Opposite of O.D.
6. One port of an amplifier
7. Nordic Mobile Telephone
8. Change out a plug-in module while power is still applied (2 wds.)
10. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto
12. Trans European Trunked RAdio
13. 2 GHz to 4 GHz
15. Low- to mid- frequency RF connector
17. Official Space Shuttle designation (abbr.)
19. Mr. Boltzmann's first name
23. 10E-1 numerical prefix
24. Study for a test just before taking it
26. Forerunner to NASA
27. Circuit path with very high or infinite impedance
29. Test point (abbr.)
30. Chemical symbol for zinc
32. Referring to atoms
33. Fraction of incident light or radiation reflected by a surface or body
34. Mate to a socket
36. Automated universal inductance tester - watch that 3rd letter, (abbr.)
37. Chemical symbol for einsteinium
38. Chemical symbol for lanthanum
39. Bandwidth (abbr.)
40. Unlicensed FCC Part 95 realm for personal and business radio use (abbr.)
44. Small representative graphic
45. Software storage unit
46. Unit of current
47. 50 Down + ____, the world's best engineering website
48. Adjust
50. __ + 47 Down, this website's title
51. Chemical symbol for lawrencium
52. "The father of rocketry"
54. Adjusts the design to accommodate tolerances
56. Gary _____, "RF Design" magazine editor (c1995)
57. Sharp bends in I-V curves
59. Common plastic insulation type (abbr.)
61. Specialized mobile radio (abbr.)
66. Facility where semiconductors are manufactured
67. International Telecommunications Union
69. Type of logic gate
70. Logic family
71. Synchronous Digital Hierarchy
73. PC follower
74. Chemical symbol for chromium

See solution below

 

2019 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.

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

 

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 12, 2019 - RF Cafe

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