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About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024

Webmaster:

    Kirt Blattenberger,

    BSEE - KB3UON

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
June 23, 2019

Since 2000, 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. 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

Engineering & Science Crossword Puzzle June 23, 2019 - RF Cafe

<click for full size to print>

ACROSS DOWN
1. Ceramic Dual Inline Package

4. Any mathematical statement that declares the values of two mathematical expressions to be equal

8. Type of data conversion device (abbr.)

10. Radio frequency interference (abbr.)

11. Type of graph with a circular grid

13. Discipline for aircraft navigation in low visibility environments (abbr.)

15. RF ____, the world's best engineering website

17. This is a subatomic particle having a mass between that of an electron and a proton

18. A BPF specification (abbr.)

19. Constellation : The southern cross

21. Chemical symbol for copper

22. BS__ - the degree held by many RF Cafe visitors

23. Numerical prefix for 10E2

25. Early programming language

27. PC follower

28. Rotate about the vertical axis

29. "Peace Prize" endowment creator, who made his fortune on the discovery of dynamite

32. Unit of time (abbr.)

33. Unit of liquid measure (abbr.)

34. A common battery cell size

35. Sends a file over a network (abbr.)

37. The constellation in which Canopus is located

38. European equivalent to the U.L.

40. Chemical symbol for erbium

41. Ratio of circumference to diameter

42. English scientist who first performed the famous double slit experiment and also played a major role in deciphering the Rosetta Stone

43. Type of chart

44. Chemical symbol for beryllium

45. Negatively charged ion

47. Traditional term for a person who enjoys helping newcomers get started in ham radio - a mentor

49. Type of current

50. Chemical symbol for ruthenium

51. Compliment to a pole in a transfer function

53. Chemical symbol for berkelium

54. Just entering the nonlinear region

56. Length times width

59. Automatic Calibration System (abbr.)

61. Indium Gallium Phosphor semiconductor (abbr.)

62. Radio Direction Finding (abbr.)

64. Virtual Private Network

66. ________ Time, how long a stepped signal takes to go from 10% to 90% of its full-scale value

67. Creates a code version of a semiconductor device

1. Complex Instruction Set Computer

2. Impurity in a semiconductor

3. Chemical symbol for palladium

4. Official engineering change document (abbr., pl.)

5. Seventh planet from the sun

6. Coefficient of temperature (abbr.)

7. Switch position

9. Highest point

10. Part of this website's title

12. On a waveform, a _____ min or max

13. Current-voltage phase mnemonic

14. Electronic device that permits current flow in only one direction

16. Length times width (pl.)

17. Greek letter (micro)

18. Method of self-detection and self-fixing transmission of digital data (abbr.)

20. Unit of electromagnetic radiation

23. Name of the curve formed by the intersection of a cone with a plane at a smaller angle with its axis than the side of the cone

24. Pure carrier (abbr.)

25. Radio navigation reference signal

26. Number that has no fractional part

30. Stock symbol for Boeing

31. Chemical symbol for cesium

33. Type of matrix barcode used with laser scanning(abbr.)

36. Chemical symbol for praseodymium

37. Analog-to-Digital (abbr.)

39. Chemical symbol for europium

41. _____-wise linear

42. The scientist who first performed the "double slit" experiment

43. Related to FM by a differential

45. Abbreviation for acknowledge (also a common word used by Bill the Cat)

46. Type Mylar airframe structure covering (2 words)

48. Added a termination

49. Logarithmic unit of ratio (abbr., pl.)

51. Antenna type derived from simple weighted wires dropped from Zeppelin airships

52. Radio signals from the cosmos (abbr.)

55. File menu option

57. Microwaves & __ magazine

58. Automatic Packet Position Reporting System (abbr.)

60. Software engineering tool (abbr.)

63. Filter type that blocks frequencies below and above a specified band (abbr.)

65. Home state of Los Alamos lab (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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Engineering & Science Crossword Solution June 23, 2019 - RF Cafe

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