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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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Microwave Engineering Theme Crossword Puzzle
February 21th, 2021

This Microwave Engineering Theme Crossword Puzzle for February 21st 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

Microwave Engineering Theme Crossword Puzzle for February 21st, 2021 - RF Cafe

ACROSS DOWN
1. Follow a target on radar

5. Soak up RF energy

10. Calendar that followed the Julian calendar

16. More than one FET

17. Powers pneumatic devices

18. Part of this website's title

20. RF ____, the world's best engineering website

21. Chemical symbol for polonium

23. Chemical symbol for niobium

25. Anatech Electronics Inc., (abbr.)

26. Schema for computer or device presentation to the operator (abbr.)

28. Type of computer display (abbr.)

29. Unit of capacitance (abbr.)

30. _____ Microwave East (part of L3-Com), RF component manufacturer located in Hauppauge, NY

33. Digital encoding of the transmission mode in the vertical sync portion of an SSTV image (abbr.)

34. Satellite TV system

36. A three-terminal power semiconductor device noted for high efficiency and fast switching (abbr.)

37. Asynchronous Digital Subscriber Line (abbr.)

38. Graphics file extension

39. Part of a screw that engages the driver (pl.)

41. Innovative Power Products, Holbrook, NY (abbr.)

43. Circuit for maintaining constant voltage (abbr.)

44. Chemical symbol for neptunium

45. Alloy of copper and zinc

47. The longest side of a right triangle

50. S12 or S21 (abbr.)

53. Chemical symbol for francium

54. Wrote software

59. Type of telescope mount (abbr., pl.)

62. Chemical symbol for argon

64. Automatic Calibration System (abbr.)

65. Method of self-detection and self-fixing transmission of digital data (abbr.)

66. 1/000 of an inch

67. Geometric entity with only length (pl.)

70. Semiconductor On Insulator (abbr.)

71. Unix, Linux or Windows (abbr.)

73. Gaussian filtered frequency shift keying

75. Bits per second (abbr.)

76. A common RS-232 serial bus command (abbr.)

77. Opposite of set

78. Network department (abbr.)

79. Electromotive force (abbr.)

81. Chemical symbol for tin

83. Intel 8086 or Motorola 6800 (abbr.)

84. Word used in describing 2-D and 3-D object dimensions; i.e., 10 mm __ 25 mm

85. Start frequency (abbr.)

88. Inventor of the pre-quantum atomic model

90. Network department (abbr.)

91. On-the-air meeting of hams at a set time, day and radio frequency

93. A length of transmission line that is open or shorted at one end

95. Big Dipper and Little Dipper

96. Inventor of the incandescent light bulb

97. One cutoff frequency specification for a bandpass filter

1. ___/IP scheme for networked connectivity

2. Sound frequency in the human hearing range (abbr.)

3. 10E-2 numerical prefix

4. Mathematical basis for calculating noise power for a given bandwidth and temperature (abbr.)

6. Stock symbol for Boeing

7. Message intelligence (pl.)

8. Type of logic gate

9. James _______ discovered the aberration of light

11. Occlusion of one heavenly body by another

12. Chemical symbol for gallium

13. Switch position

14. One component of a complex number (abbr.)

15. 1e-6 mA

19. Finite Element Analysis (abbr.)

22. Amateur radio abbreviation for the Oceania region (abbr.)

24. Fast Fourier transform (abbr.)

26. Country of RF Cafe's residency

27. Integrated Services Digital Network (abbr.)

29. Packet Bulletin Board System

31. Type of data conversion device (abbr.)

32. Type of flip-flop

33. Abbreviation for minimum voltage

34. Morse Code for "from"

35. The "D" in DAC

38. Chemical symbol for beryllium oxide

39. Artech _____, technical book publisher

40. Archimedes is one type of this geometric shape (pl.)

42. Chemical symbol for lead

46. Molecular building blocks

48. Chemical symbol for platinum

49. Chemical symbol for terbium

51. Equivalent of Windows on Apple products

52. Electromagnetic (abbr.)

55. CRT electron beam scan type (pl.)

56. Degree of IC sophistication (abbr.)

57. Mathematical curve that is the locus of the centers of curvature of another curve

58. Unit of inductance (pl.)

60. IC socket type for easy insertion & removal (abbr., pl.)

61. Type of component package (abbr.)

63. Airfoil shapers

68. Silicon transistor type (abbr.)

69. Chemical symbol for einsteinium

72. Chemical symbol for selenium

73. Image file format name extension

74. Turn on a repeater by transmitting on its input frequency (2 wds.)

77. Printer output resolution unit (abbr.)

80. Small unit of capacitance (abbr.)

82. BASIC looping keyword

84. Unit of heat

86. Specialized mobile radio (abbr.)

87. 10E1 numerical prefix

88. Chemical symbol for beryllium

89. Opposite of a LO

91. Chemical symbol for nickel

92. Part of a FOR loop

94. Filter type that blocks frequencies below and above a specified band (abbr.)


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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Microwave Engineering Theme Crossword Puzzle Solution for February 21th, 2021 - RF Cafe

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