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Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
Webmaster:
    Kirt Blattenberger,

    BSEE - KB3UON

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 World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

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Microwave Engineering Theme Crossword Puzzle
April 11, 2021

This Microwave Engineering Crossword Puzzle for April 11th has many words and clues related to RF, microwave, and mm-wave engineering, optics, mathematics, chemistry, physics, and other technical subjects. As always, this crossword contains no names of politicians, mountain ranges, exotic foods or plants, movie stars, or anything of the sort unless it/he/she is related to this puzzle's technology theme (e.g., Reginald Denny or the Tunguska event in Siberia). The technically inclined cruciverbalists amongst us will appreciate the effort. Enjoy!


Reproduction of this puzzle without the express permission of RF Cafe is prohibited.

acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words

Microwave Engineering Theme Crossword Puzzle for April 11th, 2021 - RF Cafe

ACROSS DOWN
1. The ratio of the charge on a conductor to its potential
9. Intermodulation (abbr.)
10. Unit of length (abbr.)
11. Electrical safety organization (abbr.)
12. 3 GHz to 30 GHz
14. Logs onto a hard drive
16. Frequency Division Duplex
18. Solid of rotation whose sides are the hypotenuse of a right triangle (pl.0
21. Unit of time (abbr.)
23. Morse Code for "from"
24. Parts _____
25. What is the name of the unit of angular measurement equal to one ninetieth of a right angle
28. Traditional term for a person who enjoys helping newcomers get started in ham radio - a mentor
30. Be behind in phase
31. The design component of total product cost (abbr.)
33. Readability, Signal, and Tone (QoS report type)
35. A series of numbers where there are as many numbers above it as below it in the series
37. Unix, Linux or Windows (abbr.)
38. Amateur radio operators
40. Automatic Calibration System (abbr.)
41. MS's server-side script engine for dynamically-generated web pages (abbr.)
43. Prefix meaning ground or earth
44. Unit of volume (abbr.)
45. ______-board
46. Signal-to-noise ratio (abbr.)
49. Peripheral Component Interface (abbr.)
50. Specialized mobile radio (abbr.)
52. _____ Percy Maxim, founder of the ARRL
55. Lowest operational frequency of a waveguide
57. Prefix meaning ground or earth
58. Chemical symbol for neptunium
60. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr.)
61. Has a positive phase wrt a reference
62. Image file format name extension
64. The lowest region of the ionosphere found approximately 25 to 55 miles above Earth (hyph.)
66. Schematic label for voltage supply node
68. Sound frequency in the human hearing range (abbr.)
69. Chemical symbol for nickel
70. Chemical symbol for iron
71. Added signal content to offset losses or distortion
1. Geometrical figure defined as a curve in which every point is equidistant from a fixed point
2. Modulation type (abbr.)
3. Instrument for measuring current (pl.)
4. Logic family
5. Perform a quantum event by penetrating a seemingly impassable barrier
6. ___-AZIMUTH telescope mount
7. Chemical symbol for cesium
8. 30 GHz to 300 GHz
13. Frequency Division Duplex
15. Sudden, short-lived increase in voltage or current (pl.)
17. The "D" in DARPA
19. Applies a lubricant
20. Stock symbol for National Semiconductor
22. Chemical symbol for selenium
26. Greek letter used for coefficient of reflection (pl.)
27. World's 1st fully electronic digital computer (abbr.)
29. Type of flip-flop
32. Radio Amateurs of Canada (abbr.)
34. Prefix meaning temperature-related
36. Causing a voltage or current waveform to gradually die out
37. Regarding light
39. Chemical symbol for argon
42. System On Chip
43. Verified proper functionality of a product
44. Pass-Fail ________, defining limits for acceptance test
47. Unit of inductance (abbr.)
48. 36 inches
51. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)
53. Government program to bring electricity to farms (abbr.)
54. Placed a blocking template over a PCB layout
56. PCB mask exposing ray (abbr.)
59. Peak Inverse Voltage
61. Glass device used for focusing light
63. U.S. Spectrum allocation agency
65. Polish a crystal to an exact frequency
67. Chemical symbol for cobalt
70. Chemical symbol for iron

See solution below

 

2021 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.

2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | Sudoku

September

July 31

July 24

July 17

July 10

July 3

June 26

June 19

June 12

June 5

May 30

May 23

May 16

May 9

May 2

April 25

April 18

April 11

April 4

March 28

March 21

March 14

March 7

February 28

February 21

February 14

February 7

January 31

January 24

January 17

January 10

January 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Microwave Engineering Theme Crossword Puzzle Solution for March April 4th, 2021 - RF Cafe

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