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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 1, 2019

For two decades, I have been creating custom engineering- and science-themed crossword puzzles for the brain-exercising benefit and pleasure of RF Cafe visitors who are fellow cruciverbalists. This December 1, 2019, puzzle uses as part of its grid the common schematic symbol for a MOSFET dual gate, n-channel, depletion mode transistor. A database of thousands of words is used which I have 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. 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.

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 December 1, 2019 - RF Cafe 

<click for full size to print>

1. Crude circuit prototype made of discrete components
8. Point in an revolving object's orbit that is farthest to the body it is orbiting
13. Switch position
14. Amateur Radio Direction Finding (abbr.)
15. Semiconductor On Insulator (abbr.)
16. Airport Surveillance Radar (abbr.)
17. Science of light transmission
19. Geometrical figure defined as a curve in which every point is equidistant from a fixed point
20. Chemical symbol for argon
21. A keyboard key
23. One type of electron spin
25. Cable manufacturer with HQ in Richmond, IN
30. Official Space Shuttle designation (abbr.)
31. Logic family
32. Computer messaging service
33. Unix, Linux or Windows (abbr.)
34. Described by a 1st-order equation
35. Ham's code for "Shall I increase power?"
36. Created an impenetrable physical barrier
41. Satellite TV system
42. Army-Navy specification prefix
43. Device for matching antenna impedance to transmitter impedance
44. Test equipment (abbr.)
46. Mass unit (abbr.)
47. Chemical symbol for erbium
48. Video Graphics Array (abbr.)
52. Amateur radio abbreviation for the Oceania region (abbr.)
53. Mr. de Forest's first name
55. Weatherproof cover for a radar antenna
57. Slang for when a professor hints at an exam problem (abbr.)
59. 1E6 nanoseconds
60. Programmable logic device (abbr.)
61. A common RS-232 serial bus command (abbr.)
62. Chemical symbol for einsteinium
63. Miniature RF connector
65. Cooling devices
66. Type of distribution, squared
67. Chemical symbol for rubidium
68. Telex-Over-Radio (abbr.)
69. Part of a male connector (pl.)
72. Its chemical symbol is Na
77. Output intercept point (abbr.)
79. Electrical safety organization (abbr.)
81. What kind of nuclear reaction powers both the sun and a hydrogen bomb
83. Satellite TV system
84. On-the-air meeting of hams at a set time, day and radio frequency
85. That which has mass and occupies space (pl.)
86. Sets a steady-state voltage reference
1. Transmitted a signal
2. End of transmission (abbr.)
3. Negatively charged ions
4. Lowest range of system frequencies
5. Type of logic gate
6. Type of data conversion device (abbr.)
7. Radio frequency interference (abbr.)
8. Online service
9. Type of chart
10. Hydrogen, argon, neon, xenon, etc.
11. Chemical symbol for einsteinium
12. Cell phone manufacturer
15. Chemical symbol for scandium
18. Type of data storage IC (abbr.)
22. What a capacitor is used for regarding energy
24. Write-Once (abbr.)
25. 10 decibels (pl.)
26. Electromagnetic interference (abbr.)
27. PCB metal area where component leads attach
28. Thread cutting tools
29. Polymer having the elastic properties of natural rubber
37. Galilean moon
38. Army-Navy specification prefix
39. Puts on an even plane
40. Unit of energy
45. Exalted-Carrier Single Sideband (abbr.)
46. An electron tube in which bunching of electrons is produced by electric fields, used in radars & microwave ovens (pl.)
49. Horizontal Cartesian coordinate
50. Type of high frequency circuit substrate (abbr.)
51. Receiver power level circuitry (abbr.)
54. Hides data within a message
56. ELI the ICE ___
58. Ham's code for "What is your location?"
64. Chemical symbol for molybdenum
65. Name of the fixed point from which the distances to any point on a parabola are connected by a linear relation
70. Bands between RF and baseband
71. Mate to a bolt
72. System On Chip
73. Exponent that returns the original number
74. Opposite of O.D.
75. Popular computer device interface (abbr.)
76. Degree of IC sophistication (abbr.)
78. U.K. equivalent of the IEEE
80. Chemical symbol for lutetium
82. One port of an amplifier

See solution below


2019 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 December 1, 2019 - RF Cafe

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