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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 28th, 2021

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

ACROSS DOWN
1. Device for matching two unbalanced ports (pl.)

6. Network department (abbr.)

7. Nikola _____

13. System for underwater navigation (pl.)

15. Mate to a pin

17. One port of an amplifier

18. Earth's natural satellite

21. Opposite of a LO

22. Crystal filter type (abbr.)

24. Uppermost surface

26. Type of current

27. Communication between stations by reflecting the radio waves off of the ionosphere

28. Permeability-tuned oscillator (abbr.)

30. Switch position

32. Chemical symbol for gold

34. Chemical symbol for plutonium

36. Chemical symbol for radon

37. Type of flip-flop

38. Unit of volume (abbr.)

40. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)

43. Chemical symbol for cesium

44. Network department (abbr.)

45. Strong, lightweight wood

47. Multifunctional silicon devices (abbr.)

48. Negatively doped silicon

50. Electronic warfare defense (abbr.)

53. Chemical symbol for silicon

54. Type of logic gate

56. Chemical symbol for chromium

58. Amateur radio operators trade these with each other after making contact (2 wds.)

61. Unit of inductance (abbr.)

62. Trims a piece of Kapton tape to length

63. What is the alternative name for a pi meson

65. Frequency band at low end of audio spectrum

66. CB slang for male police officer (2 wds.)

70. Move from cell to cell

72. Analog-to-Digital (abbr.)

73. 1/000 of an amp (abbr.)

74. 10E1 numerical prefix

75. Chemical symbol for aluminum

77. Chemical symbol for cobalt

78. Optical storage media

81. BSEE + 2 years

83. Powerful mathematics software used by engineers

86. Unit of capacitance (abbr.)

87. Type of matrix barcode used with laser scanning(abbr.)

88. Chemical symbol for berkelium

90. Type of overvoltage protection circuit (pl.)

95. Chemical symbol for thallium

96. Intermodulation (abbr.)

98. Decimeter (abbr.)

100. Greek letter

101. Unit of current

103. Volts divided by resistance

105. Ham's code for "What is your location?"

107. Its chemical symbol is Sm

108. Classification

1. Unit of time (abbr.)

2. Chemical symbol for nobelium

3. Volt, meter, pint, pound, eg.

4. 10E-9 numerical prefix

5. Chemical symbol for strontium

7. Part of a FOR loop

8. International phonetic alphabet letter "E"

9. Propagation by means of ionospheric reflection

10. Front edge of a wing (abbr.)

11. PC follower

12. Spongy material used in anechoic chambers

14. Type of component package (abbr.)

15. Chemical symbol for tin

16. First stages of a receiver

19. Opposite of I.D.

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

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

25. Precision approach radar (abbr.)

27. Color quality

29. Cause a circuit breaker to open

31. Cellphone band just below PCS

33. Unit of capacitance (abbr.)

34. Unit of capacitance (abbr.)

35. Readability, Signal, and Tone (QoS report type)

39. Software engineering tool (abbr.)

41. Complex Instruction Set Computer

42. Asynchronous Communication Interface Adapter (abbr.)

43. Carrier-to-noise ratio (abbr.)

46. Curve formed by a point which moves according to a mathematically defined rule

49. A major search engine

51. "Calling any amateur radio station"

52. 1E6 nanoseconds

54. Chemical symbol for neodymium

55. Unix, Linux or Windows (abbr.)

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

59. Polish a crystal to an exact frequency

60. Term indicating profitability of a company (abbr.)

61. Type of digital filter (abbr.)

62. Computer Assisted Design and Development

64. Forerunner to NASA

65. Reverse voltage on a diode

66. Last stage in transmitter (abbr., pl.)

67. Agilent's EE design software (abbr.)

68. The UK's largest defense electronics contractor (abbr.)

69. Type of data storage IC

71. Measure of how quickly an electron can move through a metal or semiconductor

73. Unit of length (abbr.)

76. Chemical symbol for lanthanum

79. Chemical symbol for ruthenium

80. Switch position

81. Unit of admittance

82. Enhanced Graphics Adapter

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

85. Chemical symbol for lawrencium

89. Unit of length (abbr.)

91. Read-only (abbr.)

92. Wavelength division multiplexing (abbr.)

93. Graphics file extension

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

95. Mate to an RX

97. Specialized mobile radio (abbr.)

99. Automated Test Equipment (abbr.)

101. A common battery cell size

102. Ratio of circumference to diameter

103. Modulation type (abbr.)

104. Chemical symbol for scandium

105. Unit of liquid measure (abbr.)

106. Chemical symbol for mercury


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 28th, 2021 - RF Cafe

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