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About RF Cafe

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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Science & Engineering Crossword Puzzle
June 15, 2014

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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December 28
December 21
December 14
December 7
November 30
November 23
November 16
November 9
November 2
October 26
October 19
October 12
October 5

September 28
September 21
September 14
September 7
August 31
August 24
August 17
August 10
August 3
July 27
July 20
July 13
July 6

June 29
June 22
June 15
June 8
June 1
May 25
May 18
May 11
May 4
April 27
April 20
April 13
April 6

March 30
March 23
March 16
March 9
March 2
February 23
February 16
February 9
February 2
January 26
January 19
January 12
January 5

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

Science & Engineering Crossword Puzzle for June 16, 2014 - RF Cafe

1. Large array of disparate antennas (2 wds., pl.)
8. Chemical symbol for strontium
9. Common average used for sinewaves (abbr.)
10. Science of assuring operation amid dense EM background noise (abbr.)
12. Ham's code for "Is my transmission being interfered with?"
14. Charged particle
15. Microwaves & RF magazine (abbr.)
18. Programmable Logic Device (abbr.)
19. Type of modulation (abbr.)
20. European equivalent to the U.L.
21. Greek letter
23. Chemical symbol for lithium
24. Software drafting tool (abbr.)
26. Last stage in transmitter (abbr., pl.)
27. Sending a wireless to an early hip-worn wireless device
30. Lowest operational frequency of a waveguide
32. Amateur Radio Association (abbr.)
33. Gallium nitride chemical symbol
35. Chemical symbol for praseodymium
36. BS__ - the degree held by many RF Cafe visitors
37. Greek letter used for frequency
39. Band between RF and BB
40. Numerical basis for decibels (abbr.)
41. RF computer network
42. Peak envelope power (abbr.)
43. 24 hours
45. Type of logic gate
47. High Data Rate
49. Small unit of capacitance (abbr.)
51. Ham's nickname for the FCC (2 wds.)
1. Chemical symbol for arsenic
2. The design component of total product cost (abbr.)
3. Integrating data onto a carrier wave
4. Non-return to zero (abbr.)
5. Modulation type (abbr.)
6. Start frequency (abbr.)
7. Wire diameter unit (abbr.)
11. 1/1000 prefix
12. Ham's code for "Shall I send more slowly?"
13. With 20D, part of this website's name
15. Million multiply accumulate operations (abbr.)
16. Type of transistor (abbr.)
19. A BPF specification (abbr.)
20. With 13D, part of this website's name
22. International Amateur Radio Union (abbr.)
25. Filter with more than one frequency band going from separate ports to a common port
26. Chemical symbol for polonium
28. Chemical symbol for gallium
29. Ratio of output to input power, voltage, current, light, etc.
31. Shorthand for troposphere
34. A measure of receiver quality (abbr.)
38. ___-back transformer
41. Chemical symbol for radium
43. Deutsche Industrie Normenausschuss
44. Ham's code for "Does my frequency vary?"
46. Radio frequency interference (abbr.)
47. Chemical symbol for helium
48. Type of current
50. Chemical symbol for iron

See solution below

















Science & Engineering Crossword Puzzle Solution for June 16, 2014 - RF Cafe
DC-70 GHz RF Cables - RF Cafe
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