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RF Cafe Engineering & Science Crossword Puzzle
November 24, 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 24, 2019, puzzle has a holiday message for you. A database of thousands of words is used 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 24, 2019 - RF Cafe 

<click for full size to print>

ACROSSDOWN
1. Television Interference (abbr.)
4. Contactless homemade (usually) inductive and/or capacitive test cable end for tracing RF signals on a PCB or in a chassis (2 wds., pl.)
13. End of soldering iron
16. Common test for verifying high voltage tolerance w/o breakdown
17. Logic gate output configuration (abbr.)
18. Stock symbol for Harris Communications
19. Hiram _____ Maxim, founder of the ARRL
20. MS's server-side script engine for dynamically-generated web pages (abbr.)
21. Type of flip-flop
22. Number which is divisible only by itself and 1
25. Chemical symbol for lanthanum
26. Type of logic gate
27. Chemical symbol for neon
28. 1e-6 mA
29. 2-way conversation, Ham term
30. A common battery cell size
32. Centimeter (abbr.)
34. Chemical symbol for nobelium
35. The "D" in RFID (pl.)
37. Common gateway interface (abbr.)
39. Russian space probes which visited Halley's comet
41. 3 GHz to 30 GHz
43. Image file format name extension
45. Name for resistor placed at power supply output to bleed off residual capacitor charge
47. "Texting" (abbr.)
48. Type of chart
50. Ground fault interrupter (abbr.)
51. Filter type (abbr.)
52. 10E-2 numerical prefix
53. Newest buzz phrase for ubiquitous remote control and monitoring of everything (abbr.)
54. Miniature RF connector
55. Commercial Off-the-Shelf
58. Low Noise Amplifier (abbr.)
60. Fail-____ switch
62. Unit of apparent power (abbr.)
64. Unit of time (abbr.)
65. Keyboard key
67. Charged particle
69. Coefficient of temperature (abbr.)
70. Chemical symbol for tin
71. Multifunctional silicon devices (abbr., pl.)
73. Chemical symbol for lawrencium
74. A type of average (pl.)
76. Chemical symbol for lithium
77. Voltage-current phase mnemonic
78. Fuel additive
79. Key feature in a high level overvoltage protection device
81. Base 16 number system (abbr.)
84. Describes a region on a semiconductor that has a linear and symmetric I-V curve
85. One state of matter
86. What is the natural conversion of one element into another by radioactive decay
87. Hz
1. Happy ____________ Day!
2. Tool for holding parts while working on them
3. Innovative Power Products, Holbrook, NY (abbr.)
4. Type of screwdriver head (2 wds.)
5. Multifunctional silicon devices (abbr.)
6. Unit of length (abbr.)
7. Sends a file over a network (abbr.)
8. Radio frequency interference (abbr.)
9. Moon of Saturn discovered in 1672
10. Type of logic gate
11. Filter type that blocks frequencies in a specified band (abbr.)
12. Amateur radio station located more than 50 km above Earth’s surface (2 wds.)
13. Ham abbreviation for transceiver
14. Small representative graphic
15. Explosive devices
23. Type of rock salt crystal used in radio
24. Keep in working condition
28. A measure of receiver quality (abbr.)
29. Type of matrix barcode used with laser scanning(abbr.)
31. A common battery cell size
33. Chemical symbol for magnesium
35. RF integrated circuit (abbr.)
36. SIP x 2 (pl.)
38. Type of microwave diode
39. Vertical Metal Oxide Semiconductor
40. Nearest and furthest points to the center of gravitational attraction for a body in orbit
42. 3 MHz to 30 MHz
44. Small unit of capacitance (abbr.)
45. Chemical symbol for scandium
46. Semiconductor and calculator company (abbr.)
47. Chemical symbol for silicon
49. Intermodulation (abbr.)
56. Switch position
57. Chemical symbol for mendelevium
59. Chemical symbol for radon
61. A BPF specification (abbr.)
63. Asynchronous Communication Interface Adapter (abbr.)
66. Nuclear explosion byproduct harmful to electronic (abbr., pl.)
68. Workplace safety group (abbr.)
70. Describes when a synchronous motor loses phase lock
72. Official Space Shuttle designation (abbr.)
75. Arithmetic Logic Unit (abbr.)
77. Science of assuring operation amid dense EM background noise (abbr.)
79. Chemical symbol for gallium
80. Army-Navy specification prefix
82. Radio signals from the cosmos (abbr.)
83. Greek letter

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 November 24, 2019 - RF Cafe

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