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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...

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RF Cafe Engineering & Science Crossword Puzzle
April 7, 2019

Since 2000, I have been creating 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 April 7, 2019

ACROSS DOWN
1. Mathematical calculation of RF component string (2 wds.)

12. One port on a BJT

14. Microwaves & RF magazine (abbr.)

15. Chemical symbol for erbium

16. Test point (abbr.)

18. Data transmission pathways

19. Field Programmable Gate Array (abbr.)

20. Deutsche Industrie Normenausschuss

22. On-the-air meeting of hams at a set time, day and radio frequency

23. Scheme to maintain proper frequency (abbr.)

24. Meet all test requirements

26. Exalted-Carrier Single Sideband (abbr.)

28. Offset Quadrature Phase Shift Keying

30. Lowest power level capable of being demodulated (abbr.)

33. Original Equipment Manufacturer (abbr.)

34. Chemical symbol for mercury

36. 10E-2 numerical prefix

38. ______ Marietta, or Lockheed ______

40. Once around a circuit

41. Similar to a laser, but at lower frequencies

42. Ticker symbol for Analog Devices

44. File name extension for an ASCII file

45. Things in a bill of material

47. Type of data conversion device (abbr.)

48. The "A" in DAC

50. Reflected radar or sonar signal (pl.)

51. Chemical symbol for neodymium

52. Ham's code for "Shall I decrease power?"

54. World's largest yearly convention of gadget and device manufacturers (abbr.)

55. Generated an official engineering change document

58. Type of vector product

60. Multichannel multipoint distribution service

61. Wire diameter unit (abbr.)

63. Direct Digital Synthesis (abbr.)

65. Temporary Engineering Change document (abbr.)

66. Counter ElectroMotive Force (abbr.)

68. Create a power supply output w/o a ground reference

70. Chemical symbol for xenon

71. Part of a FOR loop

72. American space agency (abbr.)

73. Hangs the program

75. Founder of the ARRL (3 wds.)

1. Complex Instruction Set Computer

2. Automated Test Equipment (abbr.)

3. Official Space Shuttle designation (abbr.)

4. European equivalent to the U.L.

5. Chemical symbol for argon

6. Nuclear explosion byproduct harmful to electronic (abbr., pl.)

7. Conductor size unit (abbr.)

8. Gun safety and education organization (abbr.)

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

10. One of four lines used in ferrite core memories

11. Infrared (abbr.)

12. Online auction site

13. Maximum Usable Frequency

16. Test equipment (abbr.)

17. Chemical symbol for platinum

19. Modem encoding method (abbr.)

20. Morse Code for "from"

21. Small representative graphic

22. Chemical symbol for niobium

24. Computer monitor resoultion measure (abbr.)

25. Chemical symbol for arsenic

27. Type of component package (abbr.)

28. Exponent that returns the original number

29. Ham's code for "What is the correct time?"

30. 1/000 of an amp (abbr.)

31. Aerodynamic opposition to thrust

32. Official Space Shuttle designation (abbr.)

34. Amateur radio operators

35. World's first satellite navigation system (abbr.)

36. Computer Assisted Design and Development

37. A keyboard key

38. 12.36 us is called a radar ____

39. Multifunctional silicon devices (abbr.)

40. Constellation : The lion

41. ELI the ICE ___

42. Army-Navy specification prefix

43. Type of data conversion device (abbr.)

45. Current-voltage phase mnemonic

46. Amplifier linearity specification (abbr.)

48. Nearest and furthest points to the center of gravitational attraction for a body in orbit

49. Unix, Linux or Windows (abbr.)

50. Electrical overstress (abbr.)

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

53. Device attached to an antenna mast which rotates it so that the antenna can point in different directions

55. Electromotive force (abbr.)

56. Chemical symbol for cadmium

57. Universal Mobile Telecommunications System

58. Chemical symbol for cesium

59. Chemical symbol for scandium

60. Million multiply accumulate operations (abbr.)

61. Megohm (abbr.)

62. Software engineering tool (abbr.)

63. Ham abbreviation for "distant station"

64. Morse Code for "from"

66. Software engineering tool (abbr.)

67. Resistive component of a capacitor's lumped element model (abbr.)

68. Facsimile

69. Family of ICs with a certain component density level (abbr.)

71. Semiconductor and calculator company (abbr.)

72. Chemical symbol for neptunium

73. Centimeter (abbr.)

74. Chemical symbol for radium 


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 April 7, 2019 

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