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RF Cafe Science & Engineering Crossword Puzzle
March 29, 2020

This March 29, 2020, tech-themed crossword puzzle contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, etc., which I have personally built over nearly two decades. Many new words and company names have been added that had not even been created when I started in the year 2002. 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 March 29, 2020 - RF Cafe 

<click for full size to print>

ACROSS DOWN
1. Greek letter often used to represent an angle
4. Ratio of a mechanical drawing
8. Opposite of output
12. The design component of total product cost (abbr.)
15. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)
17. Automated Test Equipment (abbr.)
18. Ticker symbol for Analog Devices
19. Electromotive force (abbr.)
21. Chemical symbol for europium
23. Direct Memory Access (abbr.)
25. Volt-ohmmeter (abbr.)
27. Low Noise Amplifier (abbr.)
28. Stock symbol for Lockheed Martin
29. Chemical symbol for gallium
30. Family of ICs with a certain component density level (abbr.)
32. Logic gate output configuration (abbr.)
34. Type of component package (abbr.)
35. Opposite of I.D.
36. Degree of IC sophistication (abbr.)
37. Peak Inverse Voltage
38. CB slang for CB radio or antenna
39. Software drafting tool (abbr.)
41. Digital storage oscilloscope (abbr.)
42. 2 x SSB
43. RF ____, the world's best engineering website
45. Bands between RF and baseband
46. Peripheral Component Interface (abbr.)
48. Electrical component the stores energy in a magnetic field
49. Branch of the military with airborne laser weapon (2 wds.)
50. Online service
52. Method of self-detection and self-fixing transmission of digital data (abbr.)
53. Greek letter
56. Circuit for maintaining constant voltage (abbr.)
58. Internet address (abbr.)
59. "Texting" (abbr.)
62. Aerodynamic opposition to thrust
65. The unit of electrical resistance
66. Variable Frequency Oscillator
67. Chemical symbol for mercury
68. Chemical symbol for silver
70. High Data Rate
72. Transmit Incremental Tuning (abbr.)
73. Home state of Los Alamos lab (abbr.)
74. System On Chip
75. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr., pl.)
76. Uppermost surface
78. High Data Rate
80. Chemical symbol for rhodium
81. Specialized mobile radio (abbr.)
82. Circuit element connecting PCB layers
83. Be behind in phase
85. Facility where semiconductors are manufactured
87. Substrate for mounting components (abbr.)
88. Determines proper functionality
89. Summed
90. Printer output resolution unit (abbr.)
2. Chemical symbol for helium
3. Intermodulation distortion (abbr.)
5. Chemical symbol for calcium
6. Amateur radio operating mode for sharing realtime video (abbr.)
7. Low altitude earth orbit
9. Logic gate
10. BlackBerry or Palm for example (abbr.)
11. Schema for computer or device presentation to the operator (abbr.)
12. Nordic Mobile Telephone
13. Part of this website's title
14. Audiovisual devices often the topic of Mac's Service Shop stories
16. Science of assuring operation amid dense EM background noise (abbr.)
19. Electromagnetic interference (abbr.)
20. Measured distance of a cycle from beginning to end (pl.)
22. Country of RF Cafe's residency
24. System for guiding aircraft (abbr.)
26. Multichannel multipoint distribution service
27. Open-______ or closed-______ system
28. Opposite of USB
29. Image file format name extension
31. Infrared (abbr.)
33. Chemical symbol for tantalum
36. 1E6 nanoseconds
37. Last stage in a transmitter (abbr.)
40. English theoretical physicist who created the delta function now named after him
42. Trigger diode that conducts current only after its breakdown voltage has been exceeded momentarily (pl.)
44. Effective frontal area presented to a microwave interrogation system (abbr.)
47. Trade magazine covering RF & microwaves topics (abbr.)
51. Cable termination type (pl.)
52. Area on a shaft for accommodating a setscrew
54. Unit of resistance
55. Chemical symbol for thulium
56. Scheme to maintain proper frequency (abbr.)
57. Local Oscillator (abbr.)
60. Unit of inductance (abbr.)
61. Synchronous Digital Hierarchy
63. Mate to a TX
64. Powers pneumatic devices
66. Aircraft navigation system (abbr.)
67. Form of energy arising from the kinetic energy of atoms and molecules
69. A common IC bond wire metal
71. Radio Direction Finding (abbr.)
74. Miniature RF connector
75. Digital encoding of the transmission mode in the vertical sync portion of an SSTV image (abbr.)
77. Attenuator
79. Radio Amateurs of Canada (abbr.)
81. Chemical symbol for scandium
82. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr.)
84. Electronics manufacturer with "meatball" logo
86. Filter type that blocks frequencies below and above a specified band (abbr.)

See solution below

 

2020 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.

2020 | 2019 | 2018 | 2017 | 2016 | 2015 | Sudoku

December 27

December 20

December 13

December 6

November 29

November 22

November 15

November 8

November 1

October 25

October 18

October 11

October 4

September 27

September 20

September 13

September 6 

August 30

August 23

August 16

August 9

August 2

July 26

July 19

July 12

July 5

June 28

June 21

June 14

June 7

May 31

May 24

May 17

May 10

May 3

April 26

April 19

April 12

April 5

March 29

March 22

March 15

March 8

March 1

February 23

February 16

February 9

February 2

January 26

January 19

January 12

January 5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Engineering & Science Crossword Solution March 29 - RF Cafe

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