December 13, 2009 Engineering & Science Crossword Puzzle

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ACROSS 1. Positive elementary particle found in the nucleus of all atoms (pl.) 6. ______ + 54A + Research, RF simulator software company in El Segundo, CA 11. Chemical symbol for silicon 12. Chemical symbol for beryllium 13. Internet address (abbr.) 15. Chemical symbol for argon 16. Armored cable type 17. Chemical symbol for bismuth 19. Superior magnetic shielding material 22. Chemical symbol for lanthanum 23. Receiver power level circuitry (abbr.) 25. Straight line emanating from a point source (pl.) 26. Type of current 27. Microprocessor vendor 28. A BPF specification (abbr.) 29. Stock symbol for Raytheon 30. Unit of length (abbr.) 31. Test point (abbr.) 33. Enhanced Graphics Adapter 35. Chemical symbol for calcium 36. Power amplifier & antenna company in Ronkonkoma, NY (3-letter abbr.) 37. Chemical symbol for thallium 39. Circuit containing a mixture of technologies 40. RF connector & cable connector manufacturer located in Taiwan 41. Chemical symbol for chlorine 42. Substrate for mounting components (abbr.) 43. Chemical symbol for palladium 44. Person responsible for program spending (abbr.) 46. Chemical symbol for scandium 48. Electronics manufacturer with "meatball" logo 49. Digital encoding of the transmission mode in the vertical sync portion of an SSTV image (abbr.) 50. Amateur radio abbreviation for the Oceania region (abbr.) 52. Amateur Teleprinter Over Radio (abbr.) 53. Type of flip-flop 54. 6A + ____ + Research, RF simulator software company in El Segundo, CA 56. 10^-9 numerical prefix 58. Morse Code for "from" 59. Basic storage unit of a database (pl.) 63. Part of a FOR loop 64. Megacycles (abbr.) 65. Chemical symbol for silver 66. Type of logic gate 67. Electromagnetic (abbr.) 69. Abbreviation for peak voltage 71. Multivibrator type 72. Custom metal parts (shields, etc.) etching company located in Chicago, IL	DOWN 1. Unit of time (abbr.) 2. Airfoil shapers 3. Chemical symbol for terbium 4. Original Equipment Manufacturer (abbr.) 5. Add two or more inputs 6. ___-AZIMUTH telescope mount 7. Programmable logic device (abbr.) 8. Chemical symbol for lawrencium 9. Online auction site 10. Ham abbreviation for "distant station" 14. Electrical process that converts alternating current into direct current 18. Integrated Services Digital Network (abbr.) 20. Volt, meter, pint, pound, eg. 21. Power supply vendor in Minneapolis, MN 22. Tie a bundle of wires together 24. Multifunctional silicon devices (abbr.) 25. Part of this website's title 29. RF IC manufacturer headquartered in South Korea (abbr.) 30. Does not pass electrical test 32. Positively doped silicon 34. Molecular building blocks 35. Error checking scheme (abbr.) 38. Semiconductor lamp 45. Stack command 47. RF ____, the world's best engineering website 48. Power distribution system 49. Very small aperture terminal 51. European equivalent to the U.L. 53. Chemical symbol for radon 55. Type of data conversion device (abbr., pl.) 57. A star that suddenly becomes much brighter and then gradually returns to its original brightness over a period of weeks to years 59. Computer monitor cable type (abbr.) 60. Software engineering tool (abbr.) 61. Radio Direction Finding (abbr.) 62. Adjust a pot 64. 1/000 of an amp 65. A common battery cell size 68. Chemical symbol for molybdenum 70. Chemical symbol for lead

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Innovative Power Products (IPP) Directional Couplers - RF Cafe

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 lady's voice announced "You've Got Mail" when a new message arrived...