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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...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

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RF Cafe Engineering & Science Crossword Puzzle
March 3, 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 March 3, 2019

1. Type of star that emits periodic bursts of energy
6. Opposite of output
11. End of soldering iron
12. Chemical symbol for praseodymium
14. Added an overcurrent protection device
16. Chemical symbol for xenon
17. Plane geometric figure having three straight sides and three angles
20. Chemical symbol for lanthanum
21. The UK's largest defense electronics contractor (abbr.)
22. Wheel attachment point
24. Unit of length (abbr.)
25. Unit of resistance
28. Unit for expressing a ratio (pl.)
32. Type of e-mail address system (abbr.)
34. Infrared (abbr.)
35. Greek letter often used to represent an angle
38. Lowest power level capable of being demodulated (abbr.)
40. One port of an amplifier
41. Time between cyclically recurring events (pl.)
42. Mr. de Forest's first name
43. Unit of frequency (archaic, abbr.)
45. Study for a test just before taking it
47. Workplace safety group (abbr.)
49. 1.602E-19 Joules
51. Spurious RF products created by metal joints (abbr.)
53. Lifetime failure rate curve
56. Decimeter (abbr.)
57. Automated Test Equipment (abbr.)
59. Cable termination type
60. Opposite of a LO
62. Amateur Radio Association (abbr.)
65. Describes a component around which wire is wrapped to make an inductor
68. Miniature threaded RF connector
70. Centimeter (abbr.)
71. Battery cell chemistry type (abbr.)
72. Charged particle
74. Galilean moon
75. Course headings
78. Morse Code for "from"
79. Undesirable background information
82. Chemical symbol for argon
83. Powers pneumatic devices
84. The scalar component of velocity
85. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)
1. Type of chart
2. One type of electron spin
3. ESD protective apparel
4. Government program to bring electricity to farms (abbr.)
5. Compressed image file format
7. A measure of receiver quality (abbr.)
8. Unintentionally change the oscillator frequency
9. Country of RF Cafe's residency
10. Test equipment (abbr.)
11. Temperature-compensated crystal oscillator
13. RF computer network
15. Digital intelligence
17. Chemical symbol for terbium
18. Institute of Electrical and Electronics Engineers
19. The "E" in ELF
23. Chemical symbol for einsteinium
26. Filter type that blocks lower frequencies (abbr.)
27. The result of multiplying the mass of an object by its velocity
29. Connector vendor
30. Chemical symbol for erbium
31. Types of amplfier, slang (pl.)
33. Chemical symbol for palladium
35. Ratio of circumference to diameter
36. Opposite of O.D.
37. Chemical symbol for chlorine
39. Type of component package (abbr.)
41. Last stage in a transmitter (abbr.)
44. Unit of electrical charge
46. Half of the diameter (pl.)
48. Chemical symbol for antimony
50. Unit of apparent power (abbr.)
52. Akin to an EE, CE, AE, etc.
54. Chemical symbol for aluminum
55. Chemical symbol for mercury
58. Chemical symbol for tantalum
60. Chemical symbol for holmium
61. Ratio of output to input power, voltage, current, light, etc.
63. Modulation type (abbr.)
64. Small representative graphic
65. Semiconductor and calculator company (abbr.)
66. Moon of Saturn discovered in 1672
67. A concern of Boolean equations
69. Automatic Testing, Evaluation & Reporting (abbr.)
71. Front end of a rocket
73. Unit of time (abbr.)
74. Input intercept point (abbr.)
76. Flash caused by an electric current ionizing a gas or vapor
77. Discipline for aircraft navigation in low visibility environments (abbr.)
78. Singulated piece of IC wafer
80. Unix, Linux or Windows (abbr.)
81. BS__ - the degree held by many RF Cafe visitors
83. Sound frequency in the human hearing range (abbr.)

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 Puzzle Solution March 3, 2019

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