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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...

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:

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Radio Technology Theme Crossword Puzzle
January 17th, 2021

This Radio Technology Theme crossword puzzle for January 17th contains only 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

Radio Technology Theme Crossword Puzzle for January 17th, 2021 - RF Cafe

ACROSS DOWN
1. Direct Memory Access (abbr.)

4. Type of Morse Code key (pl.)

10. Slang for when a professor hints at an exam problem (abbr.)

13. Lines extending out from center

15. High temperature substrate

17. Mates a plug to a jack

18. Lowest value in a list

19. Front edge of a wing (abbr.)

20. Half of a DIP

21. Front edge of a wing (abbr.)

22. Chemical symbol for tantalum

24. 3 MHz to 30 MHz

26. Unit of frequency (archaic, abbr.)

28. Ham-ese for Young Lady

29. InP (2 wds.)

36. Negatively doped silicon

37. Flip-flop control input (pl.)

38. Intel x86 command for " jump if above"

39. Chemical symbol for beryllium

41. Point of rotation (pl.)

45. 10E-2 numerical prefix

49. Performing a calculus function

51. PCB mask exposing ray (abbr.)

52. 1E6 nanoseconds

53. Chemical symbol for mendelevium

54. Chemical symbol for calcium

55. Chemical symbol for molybdenum

57. Stock symbol for Lockheed Martin

59. 1/000 of an amp (abbr.)

61. Probable location of an element's electron

65. RF radiating structure

69. Insert a doping ion into a semiconductor lattice

70. French mathematician Siméon-Denis _______

71. Satellite TV system

72. Bursts of digital data

73. Automated Test Equipment (abbr.)

1. Changing from the initial value due to instability

2. ELI the ICE ___

3. Asynchronous Digital Subscriber Line (abbr.)

4. Precision approach radar (abbr.)

5. ___-AZIMUTH telescope mount

6. Type of spread spectrum that does not use frequency hopping (abbr.)

7. Light

8. Voltage-current phase mnemonic

9. Hub of the solar system

10. Considered the 4th dimension

11. Ham's code for "The net has traffic for you. Stand by."

12. Measure a waveform at regular intervals

14. U.K. equivalent of the IEEE

16. 1/000 of an inch

23. Antenna (abbr.)

24. Color quality

25. Type of modulation (abbr.)

26. BSEE + 2 years

27. Hz

28. 36 in. (abbr., pl.)

30. Chemical symbol for dysprosium

31. Internet protocol (abbr.)

32. Angular distance between one event and another in a regularly recurring cycle

33. Path followed by a heavenly body around a star

34. Chemical symbol for helium

35. Network department (abbr.)

38. Joint Tactical Radio Service

40. RF connector & cable manufacturer located in Suwon, Korea (and an RF Cafe advertiser)

41. Peak Inverse Voltage

42. Band between RF and BB

43. 300 Hz to 3 kHz in audio (abbr.)

44. Original Equipment Manufacturer (abbr.)

45. Software drafting tool (abbr.)

46. Radio signals from the cosmos (abbr.)

47. Chemical symbol for nickel

48. RF connector type

49. Microwave substrate by Rogers

50. Intermodulation (abbr.)

55. 10^6 bits per second (abbr.)

56. Lubricant

57. Stock symbol for Linear Technologies

58. Medium for storing large amounts of digital data

59. Akin to EEs, CEs, AEs, etc. (abbr., pl.)

60. Most protruding part of planetary rings as seen from distance

62. Common average used for sinewaves (abbr.)

63. Transformer interwinding connection

64. Automatic network analyzer (abbr.)

66. Logical negation operator

67. Service of the ARRL that helps hams solve technical problems (abbr.)

68. Logical negation operator


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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Radio Technology Theme Crossword Puzzle Solution for January 17, 2021 - RF Cafe

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