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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
February 17, 2019

Beginning in 2000, I have created hundreds of 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

RF Cafe Engineering & Science Crossword Puzzle February 17, 2019

1. Substance that removes electrons from another reactant
8. Mathematical relationship of voltage, resistance, and current in a circuit (2 wds.)
14. In physics, what is it that is required to causes a change in the motion of a body
15. International Microwave Symposium (abbr.)
17. World's 1st fully electronic digital computer (abbr.)
19. One cutoff frequency specification for a bandpass filter
22. Resistive component of a capacitor's lumped element model (abbr.)
24. Unit of admittance (pl.)
25. Parameter that is a figure of merit for receiver performance in presence of multiple signals (abbr.)
26. Colorado Springs military school (abbr.)
28. Cyanide (abbr.)
29. European equivalent to the U.L.
30. Lubricant
31. Chemical symbol for radium
33. Chemical symbol for cadmium
34. Spiral-shaped casing surrounding a pump impeller that collects the liquid discharged by the impeller
37. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)
39. Unit of time (abbr.)
41. A sudden and temporary increase in voltage, current, or power
42. Galilean moon
43. Range of servo movement
44. Similar to a laser, but at lower frequencies (pl.)
45. An angle that has less than 90 degrees
46. "Calling any amateur radio station"
48. Indium Gallium Phosphor semiconductor (abbr.)
50. Ringed doughnut shape of many inductor cores
53. Army-Navy specification prefix
54. Chemical symbol for lawrencium
55. The design component of total product cost (abbr.)
56. 1.602E-19 Joules
58. JavaScript (abbr.)
59. File name extension for an ASCII file
60. Chemical symbol for gadolinium
61. BlackBerry or Palm for example (abbr.)
63. Electronics components & batteries supplier based in Japan
66. A common battery cell size
68. Chemical symbol for lithium
69. One of the Ws in WWW
71. Type of chart
73. Front edge of a wing (abbr.)
74. Between-series connectors
75. E=mc^2 guy
2. Transformer, abbr.
3. Satellite of Jupiter discovered by Galileo
4. Small motored tool for model drilling, grinding, shaping, etc.
5. Type of current flow (abbr.)
6. Chemical symbol for neon
7. Capable of operating from land or water
9. Chemical symbol for helium
10. Chemical symbol for manganese
11. International phonetic alphabet letter "S"
12. Chemical symbol for lanthanum
13. Asynchronous Communication Interface Adapter (abbr.)
15. Internet protocol (abbr.)
16. Chemical symbol for selenium
18. Mate to a plug
19. Unit of time (abbr.)
20. Type of flip-flop
21. Method of transmitting meteorological instrument readings from a weather balloon
23. Chemical symbol for tin
27. A BPF specification (abbr.)
29. Chemical symbol for cobalt
32. Sound frequency in the human hearing range (abbr.)
35. Empty space left in rocket fuel tank to allow for fuel expansion
36. ______ velocity - speed necessary to become free of the Earth's gravitational force
37. Flip-flop control input (pl.)
38. CB slang for police speed radar
40. Chemical symbol for strontium
42. Infrared (abbr.)
47. Type of matrix barcode used with laser scanning(abbr.)
48. International phonetic alphabet letter "I"
49. Gun safety and education organization (abbr.)
51. Country of RF Cafe's residency
52. Ratio of a mechanical drawing
53. Chemical symbol for silver
57. 300 Hz to 3 kHz in audio (abbr.)
58. Type of flip flop
61. Programmable Logic Device (abbr.)
62. Mr. de Forest's first name
64. Type of current
65. Deutsche Industrie Normenausschuss
67. Anatech Electronics Inc., (abbr.)
69. Weight (abbr.)
70. Filter type that blocks frequencies in a specified band (abbr.)
71. Ratio of circumference to diameter
72. Chemical symbol for einsteinium

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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RF Cafe Engineering & Science Crossword Solution February 17, 2019

TotalTemp Technologies (Thermal Platforms) - RF Cafe
withwave microwave devices - RF Cafe
Res-Net Microwave - RF Cafe

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