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Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
    Kirt Blattenberger,


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
December 22, 2019

Each week, for the sake of all avid cruciverbalists amongst us, I create a new technology-themed crossword puzzle using only words from my custom-created lexicon related to engineering, science, mathematics, chemistry, physics, astronomy, etc. This week's puzzle contains a special holiday message (clues with asterisks) to all RF Cafe visitors. You will never find among the words names of politicians, mountain ranges, exotic foods or plants, movie stars, or anything of the sort. You might, however, see someone or something in the exclusion list who or that is directly related to this puzzle's theme, such as Hedy Lamarr or the Bikini Atoll, respectively. Enjoy!

cruciverbalist: [noun]  cruci- ("cross") +‎ verbal ("words") +‎ -ist ("agent, person") -- A person who constructs crosswords.

Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words

RF Cafe Engineering & Science Crossword Puzzle December 23, 2018

1. Chemical symbol for francium
3. Type of power supply
9. Unit of volume (abbr.)
11. 34 Across + 79 Across and a _____ + 40 Across + 50 Across!*
12. One axis of an ellipse
13. Base 16 number system (abbr.)
16. Unit of atmospheric pressure (abbr.)
17. Teflon (abbr.)
18. Illumination device
20. BS__ - the degree held by many RF Cafe visitors
21. Chemical symbol for radium
23. Direct Digital Synthesis (abbr.)
25. 1e-6 mA
26. Chemical symbol for argon
27. Emitted a flash during elextrical discharge
29. The "U" in UHF
31. The "S" in CES, the world's largest yearly convention of gadget and device manufacturers
34. _____ + 79 Across and a 11 Across + 40 Across + 50 Across!*
36. Nearest and furthest points to the center of gravitational attraction for a body in orbit
38. Country of RF Cafe's residency
39. Carrier-to-noise ratio (abbr.)
40. 34 Across + 79 Across and a 11 Across + ___ + 50 Across!*
41. One component of a complex number (abbr.)
42. Unit of liquid measure (abbr.)
43. Analog-to-Digital (abbr.)
45. Chemical symbol for lithium
47. Electronics manufacturer with "meatball" logo
48. Type of logic gate
50. 34 Across + 79 Across and a 11 Across + 40 Across + ____!*
52. Amateur Teleprinter Over Radio (abbr.)
54. Mate to a bolt (pl.)
56. Chemical symbol for thulium
57. Chemical symbol for arsenic
58. Type of current flow (abbr.)
60. Radio signals from the cosmos (abbr.)
62. Chemical symbol for radium
63. Part of a FOR loop
65. A keyboard key
67. Pulse used to initiate a circuit action
70. Circuit that reduces interference (abbr.)
72. Amateur radio abbreviation for the Oceania region (abbr.)
73. S12 or S21 (abbr.)
74. 1e-6 mA
75. Chemical symbol for scandium
76. Chemical symbol for nobelium
78. 1E6 nanoseconds
79. 34 Across + _________ and a 11 Across + 40 Across + 50 Across!*
84. Chemical symbol for iron
85. Type of modulation (abbr.)
86. Abbreviation for minimum voltage
87. Chemical symbol for silicon
89. Cyanide (abbr.)
90. Sound frequency in the human hearing range (abbr.)
92. The "O" in VCO (pl.)
93. Its chemical symbol is U
97. First magnitude star in Auriga
101. Semiconductor On Insulator (abbr.)
102. CDMA Development Group (abbr.)
103. Chemical symbol for manganese
104. A common battery cell size
1. Unit of inductance (abbr.)
2. CRT electron beam scan type
3. Solid figure that has every point on its surface equidistant from its center
4. 3-phase transformer configuration
5. Chemical symbol for thallium
6. Filter type that blocks lower frequencies (abbr.)
7. Nordic Mobile Telephone
8. Part of a gyroscope that facilitates free movement of the reference sphere
9. Devices on an axle used to hold a wheel in place
10. Chemical symbol for chromium
14. Chemical symbol for xenon
15. Unit of length equal to 5.5 yards
16. Chemical symbol for aluminum
17. Maximum voltages in a waveform
19. Securing device
22. Type of data conversion device (abbr.)
23. Impurity in a semiconductor
24. International phonetic alphabet letter "S"
25. Mate to a bolt
28. Logic family
30. Medium for storing large amounts of digital data
32. Color quality
33. A processed or unprocessed semiconductor substrate
35. Chemical symbol for radon
36. Negatively charged ion
37. Shortwave listener (abbr.)
41. Radar design company
42. Powerful celestial radio source
44. Adjust the specification for temperature
46. Puts a new program on a computer
47. Chemical symbol for gallium
49. Chemical symbol for ruthenium
51. Electromagnetic (abbr.)
53. Coefficient of temperature (abbr.)
55. Test equipment (abbr.)
57. ______ House, technical book publisher
59. Plasma atmosphere layer of the sun
61. Type of current
64. Chemical symbol for calcium
66. Ratio of a mechanical drawing
68. Multifunctional silicon devices (abbr.)
69. Chemical symbol for gadolinium
71. Type of rechargeable battery (abbr., pl.)
75. Electronically images a document
77. International phonetic alphabet letter "O"
80. Part of this website's title
81. Intermodulation (abbr.)
82. Boob tube (abbr.)
83. Unit of length (abbr.)
84. Cessation of the ability to perform a specified function
88. Put a new program on a computer
89. Chemical symbol for cobalt
91. Start frequency (abbr.)
94. Stock symbol for National Semiconductor
95. Charged particle
96. Schema for computer or device presentation to the operator (abbr.)
98. Type of current flow (abbr.)
99. BlackBerry or Palm for example (abbr.)
100. Enhanced Graphics Adapter

See solution below


2018 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.

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August 5
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RF Cafe Engineering & Science Crossword Solution December 22, 2019

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