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About RF Cafe

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...

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RF Engineering Theme Crossword Puzzle
March 28, 2021

This RF Engineering Theme Crossword Puzzle for March 28th 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

Engineering-Theme Crossword Puzzle for March 28th, 2021 - RF Cafe

ACROSS DOWN
1. Astronomical distance of 3.26 light years
4. Having a single polarity
8. A common battery cell size
10. Greek letter
11. Shorthand for troposphere
13. Ham's code for "Are your receiving me badly?"
15. 10 Down + ____, the world's best engineering website
17. Trans European Trunked RAdio
18. Type of logic gate
19. An abbreviation for "receiver"
21. Network department (abbr.)
22. Internet protocol (abbr.)
23. Relating to any picture or visual information, from the latin word meaning "I see"
25. Microprocessor vendor
27. Chemical symbol for helium
28. File name extension for an ASCII file
29. Mr. Ohm's first name
32. Type of flip-flop
33. Chemical symbol for selenium
34. Chemical symbol for nobelium
35. National Television System Committee (abbr.)
37. Moving air
38. Unit of time (abbr.)
40. Chemical symbol for rubidium
41. Chemical symbol for tantalum
42. _____-Carlo analysis
43. End of transmission (abbr.)
44. Test equipment (abbr.)
45. First series in the spectrum of hydrogen
47. Log onto a hard drive
49. Last stage in a transmitter (abbr.)
50. Multifunctional silicon devices (abbr.)
51. Automatic Testing, Evaluation & Reporting (abbr.)
53. Chemical symbol for silver
54. "Peace Prize" endowment creator, who made his fortune on the discovery of dynamite
56. Most protruding part of planetary rings as seen from distance
59. Shortwave listener (abbr.)
61. Data transmission pathways
62. Last statement in a BASIC program
64. Radio Amateurs of Canada (abbr.)
66. Adjust two signal to be exactly equal
67. Unit of conductance
1. Type of programmable device (abbr.)
2. Solid figure that has every point on its surface equidistant from its center
3. Chemical symbol for calcium
4. Universal Asynchronous Transmit/Receive (abbr.)
5. Type of high frequency diode (abbr.)
6. Opposite of I.D.
7. Powers pneumatic devices
9. Automatic Testing, Evaluation & Reporting (abbr.)
10. __ + 15 Across, the world's best engineering website
12. Using a logical connection scheme for redundant power supplies
13. Ham's code for "Shall I decrease power?"
14. Man who invented the steam engine and after whom the unit of power is named (2 wds.)
16. Amateur Radio on the International Space Station (acr.)
17. Boob tube (abbr.)
18. Lubricant
20. Powerline based networking vendor based in Canada
23. Diode type whose capacitance is controlled by a reverse bias (pl.)
24. Type of current
25. Type Mylar airframe structure covering (2 words)
26. The "E" in ELF
30. Switch position
31. Amateur radio abbreviation for the Oceania region (abbr.)
33. Chemical symbol for silicon
36. Chemical symbol for antimony
37. Unit of magnetic flux(abbr.)
39. Chemical symbol for tin
41. Frequency (pl.)
42. Equivalent of Windows on Apple products
43. Chemical symbol for europium
45. Be behind in phase
46. 60 seconds
48. Color code for the number 3
49. Programmable logic device (abbr.)
51. Active Electronically Scanned Array (abbr.)
52. Chemical symbol for thallium
55. Bit error rate tester (abbr.)
57. Chemical symbol for neodymium
58. Additive white Gaussian noise
60. 3-phase transformer configuration
63. Read-only (abbr.)
65. Chemical symbol for cesium

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

December 26

December 19

December 12

December 5

November 28

November 21

November 14

November 7

October 31

October 24

October 17

October 10

October 3

September 26

September 19

September 12

September 5

August 29

August 22

August 15

August 8

August 1

July 25

July 18

July 11

July 4

June 27

June 20

June 13

June 6

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Engineering-Theme Crossword Puzzle Solution for March 28th, 2021 - RF Cafe

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