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9/11/2008 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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![RF Cafe: Engineering-themed crossword puzzle](images/crossword-9-11-2008.gif)
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ACROSS 1. Man after whom the unit of frequency
is named 10. 1e-6 mA 12. Logic gates 13. Chemical symbol
for helium 14. Variable Frequency Oscillator 15. Unit
of weight 16. Chemical symbol for arsenic 18. Bilateral
trigger diode 20. Indium phosphide 22. Chemical symbol
for radium 23. RF connector type 24. Elementary particle
26. Synchronous Digital Hierarchy 27. Chemical symbol for
strontium 28. Amateurese for "wife" 29. Chemical symbol
for rubidium 30. Chemical symbol for nobelium 31. Networks
International Corporation, abbr., manufacturer of custom RF &
microwave filters, Overland Park, KS 32. Test equipment,
abbr. 34. A semi-automatic mechanical code key 35. Chemical
symbol for nickel 37. Part of a FOR loop 38. Chemical
symbol for bismuth 39. Last stage in a transmitter, abbr.
41. Time delay, abbr. 42. Below ELF 43. Chemical symbol
for gallium 44. Instruments for Industry, Ronkonkoma, NY,
abbr. (and an RF Cafe advertiser) 45. Network department,
abbr. 47. 10^1 numerical prefix 48. Ham's code for "Answer
in prearranged order." 49. Boob tube 50. Maximum Usable
Frequency 52. Systems for underwater navigation 56. Greek
letter 57. Network department, abbr. 59. U.S. military
organization, abbr. 61. 10^-9 numerical prefix 63. Type
of current 64. 30 MHz to 300 MHz 65. FCC Part 15 rules
apply in this band, abbr. 67. Unit of time 68. Automatic
network analyzer, abbr. 70. Modern battlefield technique,
abbr. 71. Symbols and lines used to construct a representative
drawing of a system at a high level, pl. |
DOWN 1. Describes device parameters that
vary with temperature 2. Galilean moon 3. Gun safety and
education organization, abbr. 4. Type of flip-flop 5.
IC 6. Common form of energy that arises from the kinetic
energy of atoms and molecules 7. 1.602E-19 Joules 8. Radio
Frequency Interference, abbr. 9. Unit of weight, pl. 10.
Type of logic gate 11. Major opamp IC manufacturer headquartered
in Norwood, MA (and is an RF Cafe advertiser) 17. Signal-to-noise
ratio, abbr. 18. Keyboard key 19. Chemical symbol for
cobalt 21. BlackBerry or Jordana for example, abbr. 24.
Search engine 25. The design component of total product cost,
abbr. 28. Transmit Incremental Tuning, abbr. 30. Mate
to a bolt 32. Semiconductor and calculator company, abbr.
33. Quantum electron properties 36. Precision landing system,
abbr. 38. Stock symbol for Boeing 40. Colorado Springs
military school 43. One state of matter 46. Manufacturer
of project boxes 48. Ham's code for "Shall I increase power?"
49. Amplifier linearity spec., abbr. 51. Old type of capacitor
53. Switch position 54. Logic gate 55. American National
Standards Institute 58. Type of electrical wire insulation
60. Digital Storage Oscilloscope 62. Carrier-to-noise ratio
66. Megacycles, abbr. 68. Chemical symbol for silver 69.
A common battery cell size |
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See solution below
![](images/crossword-9-11-2008-s.gif)
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