Welcome to the RF Cafe Website

Search:                 | Sitemap

About RF Cafe | Homepage Archive

Kirt Blattenberger (KB3UON)

Advertise on RF Cafe (Advertisers)

RF Cafe Live Blog | Forums

Copyright 1999-2030

Electronics & RF | Mathematics

Physics & Mechanics | Quotes

Crosswords | Humor | Podcasts

Quizzes | Cogitations | Articles

Parts & Services | Videos

Radar Handbook | Cool Things

Selected Vintage Magazine Articles

Electronics World | Radio-Electronics | OFA

Radio & TV News | QST | Popular Science

Popular Mechanics | Radio-Craft | Electronics

Popular Electronics  | Mechanix Illustrated

Short Wave Craft | Saturday Evening Post

RF & Electronics Symbols for Visio & Office

RF & Electronics Stencils for Visio

RF Cascade Workbook | Espresso Workbook

everythingRF RF & Microwave Parts Database (h1)

Anatech Electronics RF Microwave Filters - RF Cafe

Amplifier Solutions Corporation (ASC) - RF Cafe
Innovative Power Products Couplers

RF Cafe Engineering & Science Crossword Puzzle
January 12, 2020

As with my hundreds of previous engineering and science-themed crossword puzzles, this one for January 12, 2020, contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, etc., which I have built up 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 January 12, 2020 - RF Cafe 

<click for full size to print>

1. Period between radar transmitter's output waveform (abbr.)

5. Gary Breed's fine magazine on RF & microwaves topics (abbr.)

8. 2 Down + ____, this website's title

9. The "B" in BER

11. Official engineering change document (abbr., pl.)

13. Chemical symbol for polonium

14. Ratio of filter's stopband bandwidth (usually 60 dB) to its passband bandwidth (usually 3 dB), 2 wds.

18. Chemical symbol for strontium

19. Automated Test Equipment (abbr.)

20. Used logic gates

21. Opposite of O.D.

22. It connects the software to the hardware

24. Swap ____, a Ham's flea market

26. Chemical symbol for californium

27. Adding a termination

30. Causes a circuit breaker to open

32. Internet address (abbr.)

33. Miniature threaded RF connector

34. Reliability measure

36. A type of average (pl.)

39. Unit of energy (pl.)

40. Electrical overstress (abbr.)

42. Semiconductor On Insulator (abbr.)

43. Bore a hole

45. Type of motor that moves in increments rather than continuous rotation

49. Chemical symbol for nobelium

50. Low altitude earth orbit

52. _/_-___, maker of RF semiconductors and connectors

54. One type of electron spin

55. ECM response

57. IC killer (abbr.)

58. A common battery cell size

59. Audiovisual devices

63. Chemical symbol for manganese

64. Weatherproof cover for a radar antenna

65. Engineering Change Notice (abbr.)

66. Nuclear explosion byproduct harmful to electronic (abbr., pl.)

69. World's first satellite navigation system (abbr.)

70. Cellphone band just below PCS

1. Last stage in a transmitter (abbr.)

2. __ + 8 Across, this website's title

3. Verified proper functionality of a product

4. High power density battery chemistry (abbr.)

5. First lines in software that call external libraries (pl.)

6. U.S. Spectrum allocation agency

7. End of transmission (abbr.)

8. Maker of a popular graphics program

9. Stock symbol for Boeing

10. Short for terminal

12. Small DIP package (abbr., pl.)

13. Form of digital phase modulation in which the phase of the RF signal depends on the modulating code (abbr.)

15. Its chemical symbol is He

16. 12 inches (pl.)

17. Radio Direction Finding (abbr.)

19. Automatic network analyzer (abbr.)

23. Feature of PCB layout software that lays down traces automatically

25. Considered the 4th dimension

28. The design component of total product cost (abbr.)

29. Dielectric material used to form a hermetic seal for thru-wall conductors

31. Astronomical distance of 3.26 light years

35. Thin metallic shield material around coax cable

37. Logical negation operator

38. Unit of conductance

41. Insulating cover over a solder joint (pl.)

43. Added an impurity to a semiconductor

44. Plural of locus

46. Met all test requirements

47. Attenuator

48. Moves from cell to cell

49. Mate to a bolt

51. Society of Civil and Structural Engineers (abbr.)

53. ELI the ICE ___

56. Type of capacitor dielectric

60. Numerical basis for decibels (abbr.)

61. Nuclear explosion byproduct harmful to electronics (abbr.)

62. Switch position

67. Unit of frequency (archaic, abbr.)

68. Unit of time (abbr.)

See solution below


2020 Crossword Puzzle 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.

2024 | 2023 |2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | Sudoku


A cruciverbalist is a person who is skilled at creating or solving crossword puzzles. The term is a combination of "cruci-" from "crucifix," meaning cross, and "verbalist" from "verbal," indicating a person who deals with words. cruciverbalists are often responsible for designing crossword puzzles, and they possess a deep knowledge of wordplay, vocabulary, and the techniques used in constructing and solving crosswords. They aim to make puzzles that are both challenging and enjoyable for crossword enthusiasts.

December 27

December 20

December 13

December 7

November 29

Thanksgiving Day

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 January 12, 2020 - RF Cafe

RF Cascade Workbook 2018 - RF Cafe

About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

1996 - 2024


Kirt Blattenberger,


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 tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

Copyright  1996 - 2026

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

My Hobby Website: AirplanesAndRockets.com | My Daughter's Website: EquineKingdom

withwave microwave devices - RF Cafe

ConductRF Phased Matched RF Cables - RF Cafe

Innovative Power Products Passive RF Products - RF Cafe