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| November 15, 2009 Engineering & Science Crossword Puzzle |
Note: A standard for crossword puzzles is when all words in a clue are capitalized, the solution
is the abbreviation or acronym for that clue; e.g., Alternating Current = AC.
2009 Engineering & Science Crossword Puzzles
Reproduction of this puzzle without the express permission of RF Cafe is prohibited. | 
| ACROSS 1. ______ + 47A, waveguide components manufacturer in Melbourne, Australia; also, a mathematical quantity that has both direction and magnitude 3. Trigonometry function for opposite/adjacent side ratio 9. Aircraft tracking system (pl.) 12. Type of data conversion device (abbr., pl.) 13. Snail and E are examples of this 14. Parameter that is a figure of merit for receiver performance in presence of multiple signals (abbr.) 16. Automatic Packet Position Reporting System (abbr.) 18. Computer interconnection scheme (abbr.) 20. ___ Industries, RF switch & attenuator manufacturer located in Indianapolis, IN 22. Prefix meaning temperature-related 23. Greek letter used for resistance 24. Soften metal 26. Rotate about the vertical axis 27. ___ + Material + 18D, manufacturer of circuit substrates, in Palatine, IL 28. French mathematician and physicist who's name is used as a unit of gas pressure 30. Work out the solution to an equation 31. Greek mathematician who wrote the book "Elements of Geometry" 34. 24 hours 36. "Texting" (abbr.) 39. Compliment to 38D 40. Aerodynamic opposition to thrust 41. Stock symbol for Linear Technologies 44. Code for a type of electrical wire insulation 46. Initial current when a motor is first turned on 47. 1A + 47A, waveguide components manufacturer in Melbourne, Australia; also, shorthand for communications at a distance 48. Unit of current | DOWN 1. Electrical unit of potential difference 2. The highest numerical exponent describes this property of a polynomial 3. Time Division Multiple Access 4. Type of current flow (abbr.) 5. Unit of time (abbr.) 6. Electromagnetic (abbr.) 7. 1e-6 mA 8. Image file format name extension 10. Colorado resort town 11. Threaded tuning rod in a coil 14. Rhode & _______ 15. _______ Microwave, SSPA manufacturer in Trenton, NJ; also a type of jet fighter 17. A class of filter used to assure the spectral content of transmitted signal 18. 27A + Material + _____, manufacturer of circuit substrates, in Palatine, IL 19. Containing interfering information 20. Mr. Joule's first name 21. One property of light (pl.) 22. Transformer interwinding connection 25. Display type 29. Chemically reacts to harden 32. Optical storage medium 33. Slang for helicopter 35. Power supply vendor in Minneapolis, MN 37. Megaohm (abbr.) 38. Compliment to a zero in a polynomial 42. Test equipment (abbr.) 43. Chemical symbol for chlorine 44. Coefficient of temperature (abbr.) 45. Chemical symbol for holmium |
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