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| | January 4, 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. Chemical symbol for neptunium 3. ___-AZIMUTH telescope mount 6. Part of a FOR loop 8. Transistor hookup scheme where a resistor in the emitter lead sets the DC operating point, 2 words 11. Imaging device, abbr., pl. 12. Teflon, abbr. 14. Logic family 15. Audio Frequency 17. Chemical symbol for terbium 18. Chemical symbol for argon 19. Chemical symbol for praseodymium 20. Chemical symbol for tantalum 22. Chemical symbol for bismuth 25. Modulation type, abbr. 27. Positive emitter-coupled logic 30. RF attenuator maker, now owned by Aeroflex 32. Metal or plastic rod that connects a potentiometer wiper to a knob 33. Min-to-max voltage of a waveform 35. Network department, abbr. 36. A measure of receiver quality, abbr. 38. Chemical symbol for thulium 40. Cabinet manufacturer in Cincinnati, OH 42. One axis of an ellipse 44. Isolator, oscillator vendor in Tampa, FL 46. Chemical symbol for copper 47. European equivalent to the U.L. 49. Test equipment manufacturer, now Agilent 50. One component of a complex number, abbr. 51. 30 kHz to 300 kHz 53. One port of an amplifier 54. Femtofarad, abbr. 55. Meet all test requirements 57. Light 59. Elemental compound used for microwave frequency reference oscillators, abbr., pl. 61. Its chemical symbol is Md 63. Unix, Linux or Windows 64. Precision approach radar, abbr. 65. Centimeter, abbr.
| DOWN 1. Japanese semiconductor & equipment manufacturer 2. Type of programmable device, abbr. 3. Soak up RF energy 4. Chemical symbol for lithium 5. Transformer interwinding connection 6. Image file format name extension 7. Exponent that returns the original number 9. Frequency Division Multiple Access 10. Network configuration 13. Fundamental parameter of an element, 2 wds. 16. Electrical connection used to prevent electrocution, 2 wds. 21. Layer of a multi-layered PCB 23. Internet protocol, abbr. 24. The reactive element in catalytic converters 26. Akin to an EE, CE, AE, etc. 28. Chemical symbol for einsteinium 29. Type of distribution, squared 31. Test point, abbr. 34. Chemical symbol for platinum 37. Type of digital filter, abbr. 39. Millimeter, abbr. 41. Chemical symbol for radium 43. Integrated circuit, abbr. 45. Kilocycles, abbr. 48. Region of the ionosphere found approximately 55 to 90 miles above Earth; it fades away a few hours after sunset, hyph. 50. Stock symbol for RF Micro Devices 52. Fast-Scan TV 54. Cooling devices 56. Small DIP package, abbr. 57. Constellation : The lion 58. Peak Envelope Power 60. Add two or more inputs 62. Chemical symbol for lanthanum |
| Answer below

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