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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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RF & Microwave Theme Crossword Puzzle
January 10, 2021

This RF & Microwave Crossword Puzzle of 2021 has many words and clues related to engineering, mathematics, chemistry, physics, and other technical words. 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., Hedy Lamarr or the Bikini Atoll). 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 January 10, 2021 - RF Cafe

ACROSS DOWN
2. The Brits call it a valve (2 wds.)
9. A data unit in quantum computing
12. Chemical symbol for terbium
13. Display type
14. RF ____, the world's best engineering website
16. Unit of atmospheric pressure (abbr.)
17. Chemical symbol for gold
18. Analog-to-Digital (abbr.)
20. Chemical symbol for praseodymium
21. Telex-Over-Radio (abbr.)
22. Last statement in a BASIC program
23. Low Noise Amplifier (abbr.)
25. Prevented the direct physical transfer of signals from one point to another
28. First name of a British scientist of falling apple fame
30. Synchronous Digital Hierarchy
32. Antenna (abbr.)
33. Computer messaging service
36. 1/000 of an amp (abbr.)
37. Chemical symbol for erbium
39. Constellation : The scales
40. Anatech Electronics Inc., (abbr.)
42. Positive voltage lead color
44. Undesireable background information
46. Type of radiation that has sufficient energy to knock electrons free from their orbits
50. Rádio Nacional de Angola (abbr.)
51. Attenuator
52. Person responsible for program spending (abbr.)
53. Front edge of a wing (abbr.)
55. Chemical symbol for radon
56. Type of current flow (abbr.)
57. Communication between stations by reflecting the radio waves off of the ionosphere
58. Apollo 11 astronaut ____ Armstrong
60. Negation prefix
61. Filter type that blocks lower frequencies (abbr.)
62. Ham radio organization (abbr.)
63. A bridge circuit used for accurate electrical measurements, named after its inventor
1. Filter circuit used to flatten group delay (pl.)
3. Automated Test Equipment (abbr.)
4. Unlicensed FCC Part 95 realm for personal and business radio use (abbr.)
5. The "U" in UHF
6. Wire diameter unit (abbr.)
7. Time delay (abbr.)
8. Bit rate unit
10. Multifunctional silicon devices (abbr.)
11. Transformer interwinding connection
15. What is the resistance that a moving object encounters as it slides over another
16. Online service
17. Boolean expression (pl.)
19. The system than converts common website names to IP addresses (abbr.)
21. Tall structure for antennas
22. BS__ - the degree held by many RF Cafe visitors
24. A common battery cell size
26. Plane geometric figure having three straight sides and three angles
27. One component of a voltage or current vector (2 wds.)
29. Circuit that reduces interference (abbr.)
31. Decimeter (abbr.)
34. Hiram Percy _____, founder of the ARRL
35. Constellation : The lion
38. One component of a complex number (abbr.)
41. Type of digital filter (abbr.)
43. 2/3 of a triac
45. Signal-to-noise ratio (abbr.)
47. Opposite of I.D.
48. Small representative graphics
49. Hit a component with an electrostatic discharge
51. Radio signal route
54. Electronics Industry Association (abbr.)
57. Having power applied (slang)
58. Silicon transistor type (abbr.)
59. Chemical symbol for lawrencium
60. 1e-6 mA
61. Chemical symbol for holmium

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

May

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Crossword Puzzle Solution for January 10, 2021 - RF Cafe

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