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December 27, 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
2. Antenna structure that connects directly to the feed line
11. One port of an amplifier
12. Chemical
symbol for praseodymium
13. Ham's code for "Is my transmission being interfered with?"
14. Chemical
symbol for strontium
16. Method of connecting redundant power supplies (pl.)
19. Engineering Change Order
(abbr.)
21. Energy in motion
24. System On Chip
27. Chemical symbol for tin
28. Greek letter
(micro)
29. BASIC looping keyword
31. __ + 63A + 82A, RFIC company in Greensboro, NC
32. Adjust a pot
35.
Angular speed unit
38. Type of high speed Internet service (abbr.)
40. Join a male and a female connector
42. Fan vendor in San Ysidro, CA,
44. Unix, Linux or Windows
(abbr.)
46. Multifunctional silicon devices (abbr.)
48. Type of high frequency circuit substrate (abbr.)
50. Chemical symbol for platinum
52. Chemical symbol for bromine
53. ____ Technologies, RF module maker
in Merlin, OR
54. Radio Amateurs of Canada
55. 1/2 of a byte
56. One component of a complex number
(abbr.)
58. Chemical symbol for argon
59. Chemical symbol for silicon
60. Small motored tool for model drilling,
grinding, shaping, etc.
62. Chemical symbol for scandium
63. 31A + _____ + 82A, RFIC company in
Greensboro, NC
65. Chemical symbol for europium
67. The "E" in TEM
70. Chemical symbol for lithium
71. Network department (abbr.)
72. Printer output resolution unit (abbr.)
74. Ham abbreviation indicating
contacts with all major land masses
75. Boob tube (abbr.)
77. Type of current
79. Centimeter (abbr.)
81. Keyboard key
82. 31A + 63A + _______, RFIC company in Greensboro, NC
83. Region of the ionosphere
approximately 90 to 400 miles above Earth - responsible for most long distance propagation below 30 MHz (hyph.)
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DOWN
1. Basic PN junction component (pl.)
2. Plane circular area
3. Chemical symbol for radon
4.
Abbreviation for peak voltage
5. Chemical symbol for erbium
6. Equalizer (abbr.)
7. Chemical symbol
for lawrencium
8. Nuclear explosion byproduct harmful to electronic (abbr., pl.)
9. Chemical symbol for
einsteinium
10. The design component of total product cost (abbr.)
15. RF connector company located in
Merlin, OR
17. Cabinet vendor in Simi Valley, CA
18. IC socket type for easy insertion & removal (abbr.)
20. Chemical symbol for cesium
22. Electromagnetic (abbr.)
23. The "C" in CDMA
25. Method of
connecting redundant power supplies
26. Airflow rate (abbr.)
30. Type of flip-flop
33. Effective Radiated Power (abbr.)
34. Part of a FOR loop
36. Queried an input for changes
37. Chemical symbol for manganese
39. Sample group
41. End of soldering iron
43. Electrical generator locomotion
45. Special diode type that can be switched
(abbr.)
47. Sharp bend in I-V curve
49. Unit of heat
51. _______ Electronics, RF filter & components
manufacturer in Garfield, NJ
52. Bulletin Board System
56. Opposite of local
57. Voltage-current phase
mnemonic
58. Chemical symbol for arsenic
61. Web's most popular RF site (2 ltrs. + 1 wd.)
64. Chemical
symbol for chlorine
66. One type of electron spin
68. Modern battlefield technique (abbr.)
69.
Coefficient of temperature (abbr.)
71. Opposite of O.D.
73. Current-voltage phase mnemonic
76. 3 kHz
to 30 kHz
78. 24 hours
80. 1e3 uV |
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See solution below
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