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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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RF Cafe Radio & Science Crossword Puzzle
May 24, 2020

Beginning in the year 2000 and running through today, May 24, 2020, I have been creating weekly custom technology-themed crossword puzzles for the brain-exercising benefit and pleasure of RF Cafe visitors who are fellow cruciverbalists. A database of thousands of words has been built up over the years and contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, familiar company names etc. 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 May 24, 2020 - RF Cafe

<click for full size to print>

ACROSS DOWN
1. Vacuum tube type for a high power, high frequency transmitter

6. Sets a steady-state voltage reference

9. Logarithmic unit of power (abbr.)

13. Opposite of O.D.

14. Chemical symbol for argon

15. Chemical symbol for nickel

16. Unit of time (abbr.)

17. Online auction site

18. Electromagnetic (abbr.)

20. A type of capacitance or inductance

25. Automatic Testing, Evaluation & Reporting (abbr.)

27. Chemical symbol for chlorine

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

29. Metric system (abbr.)

31. Personal Handy Phone System (abbr.)

32. Low- to mid- frequency connectors

34. What kind of a number is divisible only by itself and 1

36. Unit of inductance (abbr.)

39. Analog-to-Digital (abbr.)

40. A BPF specification (abbr.)

41. A measure of receiver quality (abbr.)

43. State _______ - A type of drawing used in computer science and related fields to describe the behavior of systems (pl.)

45. Type of high frequency diode (abbr.)

46. Chemical symbol for neon

47. Unit of inductance (abbr.)

48. 1/000 of an amp (abbr.)

53. Apply more signal than a circuit can handle

55. Equalizer (abbr.)

57. Merrill ________ - popular author on radar system amplifier design

58. Chemical symbol for iron

59. Polymer having the elastic properties of natural rubber

60. Chemical symbol for silicon

62. Part of this website's title

63. Capacitor dielectric type (pl.)

67. One port of an amplifier

69. Part of a gyroscope that facilitates free movement of the reference sphere (pl.)

73. Chemical symbol for lithium

74. Television (2 wds.)

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

77. Chemical symbol for lanthanum

78. Centimeter (abbr.)

79. International phonetic alphabet letter "S"

81. In a coordinate system, what is the name of the vertical coordinate

85. Chemical symbol for thallium

86. Chemical symbol for erbium

87. Opposite of a LO

89. Unit of time (abbr.)

90. Filter type with high rate of out-of-band attenuation (aka 'elliptic')

92. Electric enclosure standard organization (abbr.)

93. Current-voltage phase mnemonic

95. Computer monitor resolution measure (abbr.)

97. Last stage in a transmitter (abbr.)

98. Electronics manufacturer with "meatball" logo

99. Time Division Multiple Access

100. Imperfections in a crystal lattice

102. Chemical symbol for plutonium

103. Unit of energy (pl.)

105. Read-only (abbr.)

106. Chemical symbol for tin

107. Type of current

108. Boob tube (abbr.)

110. BlackBerry or Palm for example (abbr.)

111. Luminous atmospheric phenomenon

112. Reduced in amplitude

2. Opposite of a LO

3. 36 in. (abbr., pl.)

4. Straight line emanating from a point source

5. Type of logic gate

6. Steady-state voltage reference

7. Signal-to-noise ratio (abbr.)

8. Chemical symbol for einsteinium

9. Logarithmic ratio (abbr.)

10. No insulation

11. 3-phase transformer configuration

12. Devices for interpreting encoded data

17. Type of high-tech data gathering system (abbr.)

19. Chemical symbol for magnesium

21. Test point (abbr.)

22. Moon of Saturn discovered in 1672

23. Chemical symbol for arsenic

24. Low Noise Amplifier (abbr.)

26. ECM response

27. Chemical symbol for chromium

30. Miniature threaded RF connector

33. Chemical symbol for cadmium

34. Surfaces

35. 300 kHz to 3 MHz

37. Chemical symbol for mercury

38. Workplace safety group (abbr.)

40. Electronic component for passing certain frequencies and blocking others

42. Unit of magnetic flux

44. Frequency-shift-keying with more than two states represented by different frequency deviations (abbr.)

48. Maximum Usable Frequency

49. Large radio telescope in Puerto Rico

50. Type of data storage IC

51. Galilean moon

52. Chemical symbol for radon

54. 30 Hz to 300 Hz

56. Unit of liquid measure (abbr.)

60. Miniature RF connector

61. A line on a map which joins points of equal pressure

63. PCB interconnect

64. Nordic Mobile Telephone

65. Chemical symbol for aluminum

66. Described by a 1st-order equation

68. Negative temperature coefficient (abbr.)

69. Equipment

70. Chemical symbol for molybdenum

71. Army-Navy specification prefix

72. Its chemical symbol is Se

75. Open a fuse

79. Threaded tuning rod in a coil (pl.)

80. A disk operation

82. 10E1 numerical prefix

83. Greek letter used for frequency

84. MS's server-side script engine for dynamically-generated web pages (abbr.)

85. Chemical symbol for tantalum

87. Chemical symbol for helium

88. Intermodulation distortion (abbr.)

90. Plug-in for computer bus

91. BS__ - the degree held by many RF Cafe visitors

92. American space agency (abbr.)

93. S12 or S21 (abbr.)

94. Modern battlefield technique (abbr.)

96. Min-to-max voltage of a waveform (abbr.)

97. Peak envelope power (abbr.)

99. Telex-Over-Radio (abbr.)

100. U.S. Spectrum allocation agency

101. Official Space Shuttle designation (abbr.)

104. Chemical symbol for gallium

105. Chemical symbol for ruthenium

107. Morse Code for "from"

109. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (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.

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Thanksgiving Day

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Engineering & Science Crossword Solution May 24, 2020 - RF Cafe

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