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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 Engineering & Science Crossword Puzzle
January 19, 2020

As with my hundreds of previous engineering and science-themed crossword puzzles, this one for January 19, 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 19, 2020 - RF Cafe 

<click for full size to print>

ACROSS DOWN
1. Computer monitor cable type (abbr.)

4. High frequency semiconductor (abbr.)

7. A star that suddenly becomes much brighter and then gradually returns to its original brightness over a period of weeks to years

10. Peripheral Component Interface (abbr.)

13. Facility where semiconductors are manufactured (pl.)

14. Electrical safety organization (abbr.)

15. Opposite of I.D.

16. Physical unit by which power is measured

18. Ratio of circumference to diameter

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

21. Radio frequency interference (abbr.)

22. Part of this website's title

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

25. Stock symbol for Harris Communications

27. One system's phonetic letter "z"

29. Voltage-current phase mnemonic

30. Type of high frequency diode (abbr.)

32. British astronomer ______ Halley

35. A final surface coating

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

40. Region of low relative pressure

43. Adjacent Channel Power Ratio (abbr.)

44. Code used for automating software tasks

48. Real estate where equipment is located

49. Chemical symbol for beryllium

50. Positive emitter-coupled logic (abbr.)

52. Volts divided by resistance

55. Chemical symbol for cadmium

56. Units of current

59. Transferred charge w/o physical contact

62. Adds two or more inputs

63. Modulation type (abbr.)

64. Chemical symbol for magnesium

65. BSEE + 2 years

66. Comic strip engineer

70. Factors of ten

74. Related to FM by a differential

76. Send a wireless to an early hip-worn wireless device

78. National Television System Committee (abbr.)

79. Chemical symbol for chromium

81. Majority carrier in p-type material

84. Tunes

87. Greek letter

89. Luminous atmospheric phenomenon

92. Logic family (abbr.)

93. Causes circuit path with very low or 0 ohms of impedance

95. 60/40, PbSn, for example

98. Mate a plug to a jack

101. Amplifier linearity specification (abbr.)

103. Automatic Calibration System (abbr.)

104. Type of e-mail address system (abbr.)

105. Mr. de Forest's first name

106. Equalizer (abbr.)

108. Digital voltmeter (abbr.)

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

111. A common battery cell size

112. Transition from solid to liquid phase

114. Chemical symbol for silicon

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

118. Multichannel multipoint distribution service

120. FCC's Universal Licensing System (abbr.)

121. BlackBerry or Jordana for example (abbr., pl.)

122. Integrated Services Digital Network (abbr.)

123. Parts per million (abbr.)

1. Chemical symbol for radium

2. 10^9 bits per second (abbr.)

3. Broadband Signal Intrusion (abbr.)

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

5. International phonetic alphabet letter "A"

6. Chemical symbol for antimony

7. 1e-6 mA

8. Vector Offset Frequency Shift Keying

9. Ticker symbol for Analog Devices

10. Abbreviation for "power"

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

12. Network department (abbr.)

13. Custom metal parts (shields, etc.) etching company located in Chicago, IL

17. Adjusted

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

21. Positive voltage lead color

24. International Microwave Symposium (abbr.)

26. Network configuration type

27. Antenna type derived from simple weighted wires dropped from Zeppelin airships

28. Rádio Nacional de Angola (abbr.)

30. Type of digital filter (abbr.)

31. Unit of inductance (abbr.)

33. PCB mask exposing ray (abbr.)

34. Cellphone band just below PCS

36. Current-voltage phase mnemonic

37. Chemical symbol for neptunium

39. Half of a DIP

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

42. Coordinated Universal Time (abbr.)

44. Special diode type that can be switched (abbr.)

45. Set the flip-flop output to "0"

46. Trigonometry function for opposite/adjacent side ratio

47. Electronic component package type (abbr.)

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

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

53. Chemical symbol for plutonium

54. Chemical symbol for scandium

56. Stock symbol for Advanced Micro Devices

57. Degree of IC sophistication (abbr.)

58. Surface Mount Technology

59. Intermodulation distortion (abbr.)

60. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)

61. Satellite TV system

67. Filter type that blocks upper frequencies (abbr.)

68. Stock symbol for Boeing

69. Enhanced Graphics Adapter

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

72. Chemical symbol for arsenic

73. Type of current

74. Name for a voltage that appears in an electrical conductor such as a wire, even though the wire is disconnected from an electrical circuit

75. Minutes of Use (abbr.)

77. Describes the action of cleaving a crystal plane

79. Logic gate output configuration (abbr.)

80. CRT electron beam scan type (pl.)

82. Chemical symbol for lawrencium

83. Electrical overstress (abbr.)

85. Joint Tactical Radio Service

86. Describes when a synchronous motor loses phase lock

87. Newest buzz phrase for ubiquitous remote control and monitoring of everything (abbr.)

88. Type of logic gate

90. Unit of length equal to 5.5 yards

91. Chemical symbol for aluminum

93. Chemical symbol for selenium

94. Stock symbol for Harris Communications

96. Mr. Packard's (HP) first name

97. Electronic warfare defense (abbr.)

99. Negation prefix

100. The scalar component of velocity

102. Stock symbol for Dell Computer

105. Light

107. Unit of liquid measure (abbr., pl.)

108. Digital Signal Processor (abbr.)

110. Base of the decimal number system

111. Unit of current

113. Chemical symbol for europium

115. Filter type that blocks frequencies in a specified band (abbr.)

116. Chemical symbol for nickel

119. Decimeter (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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Engineering & Science Crossword Solution January 19, 2020 - RF Cafe

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