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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 tying 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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Engineering Crossword Puzzle
October 27, 2019

Here is the last engineering- and science-themed crossword puzzle for October. These custom-made crosswords are done weekly 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.

Reproduction of this puzzle without the express permission of RF Cafe is prohibited.

Engineering Crossword Puzzle for October 27, 2019 - RF Cafe

ACROSS DOWN
1. An abrupt change in a parametric value (pl.)

12. Changed from the initial value due to instability

14. Elemental compound used for microwave frequency reference oscillators (abbr., pl.)

15. Morse Code for "from"

16. Sound frequency in the human hearing range (abbr.)

18. Longitudinal shape-forming structural elements

19. Unintended frequency product from a mixer

20. Automated Test Equipment (abbr.)

22. Push to Talk (abbr.)

23. Miniature RF connector

24. Considered the 4th dimension

26. Trigger diode that conducts current only after its breakdown voltage has been exceeded momentarily (pl.)

28. High-speed circuit-switched data (abbr.)

30. Greek letter often used to represent an angle

33. Programmable Logic Device (abbr.)

34. Chemical symbol for beryllium

36. Voltage limiter

38. Short for modulator/demodulator (pl.)

40. Type of data conversion device (abbr.)

41. Things in a bill of material

42. Trim a piece of Kapton tape to length

44. Temporary Engineering Change document (abbr.)

45. Bore a hole

47. Type of chart

48. Mr. Kirchhoff's and Mr. Eiffel's first name

50. Microprocessor vendor

51. Last stage in a transmitter (abbr.)

52. Early computer display screen resolution (abbr.)

54. Colorado Springs military school (abbr.)

55. Cambridge University _____, technical book publisher

58. Electrical unit of potential difference (pl.)

60. With 56 Down, this website's title

61. MS's server-side script engine for dynamically-generated web pages (abbr.)

63. 30 GHz to 300 GHz

65. Original Equipment Manufacturer (abbr.)

66. Voltage-Controlled Oscillator (pl.)

68. Constellation : The whale

70. Chemical symbol for molybdenum

71. Chemical symbol for terbium

72. Glue together

73. Unit for expressing a ratio

75. Large-value resistor connected across the filter capacitor in a power supply to discharge the filter capacitors when the supply is turned off (2 wds.)

1. 2/3 of a triac

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

3. Official Space Shuttle designation (abbr.)

4. European equivalent to the U.L.

5. Opposite of I.D.

6. Enter data using the keyboard

7. International Telecommunications Union

8. Type of logic gate

9. Unit of time (abbr.)

10. Theoretical

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

12. Type of spread spectrum that does not use frequency hopping (abbr.)

13. Angular speed unit

16. PC follower

17. Unit of length (abbr.)

19. Electronic component package type (abbr.)

20. Analog-to-Digital (abbr.)

21. End of a soldering iron (pl.)

22. Unit of time (abbr.)

24. ___/IP scheme for networked connectivity

25. Network department (abbr.)

27. Chemical symbol for cadmium

28. Amateur radio enthusiast

29. "Texting" (abbr.)

30. Chemical symbol for polonium

31. High Definition Television

32. U.K. equivalent of the IEEE

34. The "B" in BGA

35. High-speed logic family

36. Cellular Telecommunications Industry Association

37. Mr. de Forest's first name

38. Reliability measure

39. Unit of frequency (archaic, abbr.)

40. Singulated piece of IC wafer

41. Innovative Power Products, Holbrook, NY (abbr.)

42. Chemical symbol for copper

43. Country of RF Cafe's residency (abbr.)

45. The system than converts common website names to IP addresses (abbr.)

46. A common RS-232 serial bus command (abbr.)

48. One port on a FET

49. A common battery cell size

50. U.K. equivalent of the IEEE

52. Chemical symbol for cobalt

53. Fastener hardware vendor in Woodside, NY

55. Last stage in transmitter (abbr., pl.)

56. With 60 Across, this website's title

57. Switch configuration (abbr.)

58. 300 Hz to 3 kHz

59. Type of component package (abbr.)

60. The "C" in CDMA

61. Automatic Testing, Evaluation & Reporting (abbr.)

62. Hub of the solar system

63. 1/6 inch printer's measure

64. Chemical symbol for holmium

66. Aircraft navigation system (abbr.)

67. Carrier-to-noise ratio (abbr.)

68. Type of computer display (abbr.)

69. Engineering Change Order (abbr.)

71. Chemical symbol for thallium

72. Chemical symbol for beryllium

73. Ratio of circumference to diameter

74. 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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Engineering Crossword Solution for October 27, 2019 - RF Cafe 

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