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RF Cafe Engineering & Science Crossword Puzzle
May 10, 2020

Since 2000 - that's 20 years - I have been creating custom technology-themed crossword puzzles for the brain-exercising benefit and pleasure of RF Cafe visitors who are fellow cruciverbalists. The jury is out on whether or not this type of mental challenge helps keep your gray matter from atrophying in old age, but it certainly helps maintain your vocabulary and cognitive skills at all ages. 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, 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 10, 2020 - RF Cafe

<click for full size to print>

1. The "C" in DAC

7. Lowest power level capable of being demodulated (abbr.)

10. Ham's code for "Does my frequency vary?"

13. _______ strength - measure of resistance from breaking

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

19. Type of logic gate

20. Fast Fourier transform (abbr.)

21. Chemical symbol for holmium

22. Unix, Linux or Windows (abbr.)

23. Unit of time (abbr.)

24. 10E1 numerical prefix (pl.)

27. Maximum Usable Frequency

29. Chemical element abbreviated Sn

31. Stock symbol for Raytheon

34. S12 or S21 (abbr.)

35. Peak envelope power (abbr.)

37. ___-back transformer

39. Sent a ray of light

41. Stock symbol for Harris Communications

43. Galilean moon

44. _____&Schwarz

46. U.K. equivalent of the IEEE

48. Chemical symbol for thallium

49. Chemical symbol for neptunium

50. Network department (abbr.)

52. Image file format name extension, (pl.)

53. Unit of current

55. Describes when a synchronous motor loses phase lock

58. Chemical symbol for platinum

59. Modulation type (abbr.)

61. Common shorthand reference for a capacitor (pl.)

64. U.S. Spectrum allocation agency

66. Intermodulation distortion (abbr.)

67. First name of a British scientist of falling apple fame

69. Radio term for indicating the end of a transmission segment

70. Morse Code for "from"

71. Chemical symbol for rubidium

73. Wheel attachment point

74. Describes an open fuse

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

78. Negative temperature coefficient (abbr.)

80. Image file format name extension

81. Start frequency (abbr.)

82. Network department (abbr.)

83. Move in a raster pattern

85. Official Space Shuttle designation (abbr.)

87. Alternative name for Beta Persei

88. Radio signals from the cosmos (abbr.)

90. Type of current flow (abbr.)

91. Unit of capacitance (abbr.)

93. U.S. military organization (abbr.)

95. The "S" in SOIC

97. Switch position

99. 30 MHz to 300 MHz

101. Method for mechanically connecting component leads in preparation for soldering

103. Effective frontal area presented to a microwave interrogation system (abbr.)

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

105. Part of a FOR loop

106. Stock symbol for National Semiconductor

108. Heterojunction Bipolar Transistor

109. Angular speed unit

112. Precision approach radar (abbr.)

113. Internet protocol (abbr.)

115. Chemical symbol for lanthanum

116. Chemical symbol for radon

118. Gallium nitride chemical symbol

120. Gun safety and education organization (abbr.)

122. Band between RF and BB

123. Its chemical symbol is Li

124. Type of data conversion device (abbr.)

125. Low Noise Amplifier (abbr.)

126. He determined the constant equal to 1.3806503 × 10E-23 m2 kg s-2 K-1

1. Unlicensed radio type for personal and business use (abbr., pl.)

2. Type of logic gate

3. Relating to any picture or visual information, from the Latin word meaning "I see"

4. Mate to a TX

5. Uppermost surface

6. Chemical symbol for erbium

7. 300 kHz to 3 MHz

8. Design for Manufacturability (abbr.)

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

11. Chemical symbol for rhodium

12. International phonetic alphabet letter "H"

13. Unit of weight

14. Chemical symbol for einsteinium

15. Network configuration type

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

17. Resistive component of a capacitor's lumped element model (abbr.)

24. Effect caused by a nonlinearity

25. Chemical symbol for aluminum

26. 3-phase transformer configurations

28. Finite Element Analysis (abbr.)

30. Opposite of O.D.

32. Semiconductor and calculator company (abbr.)

33. Minimum noise power level (2 wds.)

35. Personal Handy Phone System (abbr.)

36. BlackBerry or Palm for example (abbr.)

38. Chemical symbol for lithium

40. Microwave Theory and Techniques Society (abbr.)

41. Filter type that blocks lower frequencies (abbr.)

42. Chemical symbol for silicon

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

45. Electromotive force (abbr.)

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

49. Home state of Los Alamos lab (abbr.)

51. Use the wheel on a mouse

54. Substrate for mounting component (abbr., pl.)

56. Intermodulation (abbr.)

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

58. Attenuator configuration (hyph.)

59. Advanced Communication Technologies and Services (abbr.)

60. Digital voltmeter (abbr.)

62. Chemical symbol for palladium

63. Digital transmission figure of merit (abbr.)

65. Chemical symbol for chlorine

68. Army-Navy specification prefix

72. Chemical symbol for bismuth

75. Refers to the IEEE802.11 networks (abbr.)

77. Chemical symbol for scandium

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

81. A BPF specification (abbr.)

84. Logical gate type (pl.)

86. Specialized mobile radio (abbr.)

87. ___-AZIMUTH telescope mount

89. Boob tube (abbr.)

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

91. The "U" in UHF

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

94. Type of current

96. Provider of services for telecommunications systems in Switzerland

98. Unit of time (abbr.)

100. Type of cryptographic algorithm that takes a string and converts it to a numeric code

101. Unlicensed FCC Part 95 realm for personal and business radio use (abbr.)

102. Control language used by Hewlett Packard printers, abbr.

105. Chemical symbol for tantalum

107. 1/000 of an inch

108. Amateur radio enthusiast

110. ELI the ICE ___

111. Ham's code for "Are you busy?"

112. Circuit for firing a radar magnetron (abbr.)

114. Ratio of circumference to diameter

115. Chemical symbol for lutetium

117. Chemical symbol for neodymium

119. 1e-6 mA

120. Chemical symbol for nobelium

121. PC follower

122. One port of an amplifier

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.

2024 | 2023 |2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | Sudoku


A cruciverbalist is a person who is skilled at creating or solving crossword puzzles. The term is a combination of "cruci-" from "crucifix," meaning cross, and "verbalist" from "verbal," indicating a person who deals with words. cruciverbalists are often responsible for designing crossword puzzles, and they possess a deep knowledge of wordplay, vocabulary, and the techniques used in constructing and solving crosswords. They aim to make puzzles that are both challenging and enjoyable for crossword enthusiasts.

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Engineering & Science Crossword Solution May 10, 2020 - RF Cafe

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