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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 Radio & Science Crossword Puzzle
May 31, 2020

This week's crossword puzzle is a new type that uses a "free form" layout where the software dynamically creates the word grid, rather than beginning with a predefined grid that it then fills with words. It appears the longer it is allowed to run, the greater the number of words and cross-links it creates. After about 5 minutes, this 19x17 grid is showing 57 words and 61 cross-links... and now an hour later it shows 62 words and 70 cross-links - not overly impressive in my view. The algorithm picks from the same database of thousands of words which I have been creating for over twenty years and contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, familiar company names 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 31, 2020 - RF Cafe

<click for full size to print>

1. Small DIP package (abbr.)
3. Write-Once (abbr.)
6. Modulation type (abbr.)
10. Input intercept point (abbr.)
11. Internet mail protocol (abbr.)
12. Impurity in a semiconductor
14. A sudden and temporary increase in voltage, current, or power
15. Devices on an axle used to hold a wheel in place (pl.)
16. Chemical symbol for calcium
18. CB slang for a passenger
20. Last statement in a BASIC routine
22. Unit of current
24. Unit of processor calculation speed, abbr.
26. Opposite of O.D.
27. Voltage-controlled crystal oscillator (abbr., pl.)
28. Uppermost surface
29. Vertical Metal Oxide Semiconductor
33. A feedback scheme to level out the receiver audio volume (abbr.)
34. Common petroleum-based enclosure material (pl.)
39. Akin to EEs, CEs, AEs, etc. (abbr., pl.)
40. Tweak a filter for the correct response
41. Unit of resistance (pl.)
43. Computer monitor cable type (abbr.)
45. BSEE + 2 years
47. Computer monitor resolution measure (abbr.)
50. RF connector type
51. Active Electronically Scanned Array (abbr.)
53. Method of self-detection and self-fixing transmission of digital data (abbr.)
54. Software storage unit (pl.)
55. International phonetic alphabet letter "L"
2. Coder/decoder (abbr.)
3. Refers to the IEEE802.11 networks (abbr.)
4. Semiconductor device type (abbr.)
5. International phonetic alphabet letter "K"
6. Manned rocket series that went to the moon
7. Related to FM by a differential
8. Started as HPIB
9. Last stage in transmitter (abbr., pl.)
11. Sudden, short-lived increase in voltage or current
13. Enclosure for electronics system or assembly
15. Object orientated programming term
17. Type of logic gate (pl.)
19. Line extending out from center
21. Ultra High Voltage (abbr.)
23. FET voltage specification
24. _____-Carlo analysis
25. Unintended frequency product from a mixer
28. Unit of frequency
30. 300 kHz to 3 MHz
31. Solid figure that has every point on its surface equidistant from its center
32. Unit of frequency (archaic, abbr.)
35. Miniature RF connector
36. Integrated Services Digital Network (abbr.)
37. International Amateur Radio Union (abbr.)
38. Official engineering change document (abbr., pl.)
42. Steel, brass, aluminum, etc.
44. Filter type that blocks frequencies below and above a specified band (abbr.)
45. Degree of IC sophistication (abbr.)
46. 30 GHz to 300 GHz
48. The computer in 2001: A Space Odyssey
49. One state of matter
52. Chemical symbol for gallium

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.

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Engineering & Science Crossword Solution May 31, 2020 - RF Cafe

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