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February 15, 2009 Engineering & Science Crossword Puzzle
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Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
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ACROSS 1. Lowest operational frequency of a waveguide
6. a control input to a counter 11. Compliment to a zero in a polynomial 12. Communication between
stations by reflecting the radio waves off of the ionosphere 14. Unit of weight, pl. 16. Cathode Ray Tube
17. Chemical symbol for rhodium 18. RF connector type 19. Chemical symbol for cobalt 20. Connector
vendor
22. The "S" in SOIC 23. Unit of time, abbr. 24. The "L" in VLF 25. A common battery cell size 27.
Chemical symbol for einsteinium 28. Band between RF and BB
30. Antenna radiated power measurement, abbr. 32. Retain a charge 34. Chemical symbol for neon 35.
Constellation : The scales 36. Applied Computational Sciences, abbr.
38. Digital encoding of the transmission mode in the vertical sync portion of an SSTV image, abbr. 39.
European equivalent to the U.L. 41. Amateur Radio Emergency Service
42. Open a fuse 44. Chemical symbol for palladium 45. Common average used for sinewaves, abbr. 47.
Applied Computational Sciences, abbr. 48. SIgnal to Noise And Distortion 49. Chemical symbol for nobelium
50. RF/microwave software vendor 52. Circuit path with very high or infinite impedance 53. Electrical
safety organization, abbr. 54. Coefficient of temperature, abbr. 55. Compact Fluorescent Light 58.
Readability, Signal, and Tone (QoS report type) 59. 30 kHz to 300 kHz 61. A major search engine 62.
Uppermost surface, pl. 64. Chemical symbol for beryllium 65. Imaging device, abbr. 66. 1.602E-19
Joules 67. Wireless application protocol 68. Basic element 69. Government program to bring electricity
to farms, abbr. 71. Semiconductor lamps 72. Connector supplier 73. Aircraft tracking systems
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DOWN 1. Material used in the center of an inductor coil
2. The "U" in UHF 3. Test equipment, abbr. 4. Femtohenry, abbr. 5. Aircraft bulkheads 6. A simple
machine 7. Web page language 8. Charged particles 9. Low- to mid- frequency connector 10. Network
department, abbr. 11. Substrate for mounting component, abbr., pl. 13. Angular distance between one event
and another in a regularly recurring cycle 15. Filter type that rejects high frequencies
19. Make an adjustment to misalignment 21. One state of matter 24. Constellation : The scales 26.
Amateur Television 29. Chemical symbol for iron 30. Electronics Industry Association 31. Occlusion of
one heavenly body by another 33. Lubricant
36. Soaks up RF energy 37. Type of optical network 39. Chemical symbol for cadmium
40. Short Message Service 43. Computer communication scheme 44. In geometry what is any plane figure
having three or more straight sides 45. Extract information from a modulated signal 46. System On Chip
49. Greek letter used for frequency 50. Ethoxyethane 51. Fast Fourier Transform 56. One cutoff
frequency specification for a bandpass filter 57. Million samples per second 59. Specialty connector
manufacturer
60. Frequency Division Multiple Access 63. Attenuator, pl. 65. Resistor vendor in Berne, IN 68.
Chemical symbol for arsenic 70. A common battery cell size 71. Chemical symbol for lanthanum |
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See solution below
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