8/20/2007 Engineering & Science Crossword Puzzle

Take a well-deserved break and try your hand at some of these goodies. Every word in the RF Cafe crossword puzzles is specifically related to engineering, mathematics, and science. There are no generic backfill words like many other puzzles give you, so you'll never see a clue asking for the name of a movie star or a mountain on the Russia-China border.

All of these crossword puzzles were created using the fabulous Crossword Express (now called "Magnum Opus") software.

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Cruciverbalist:

A cruciverbalist is a person who is skilled at creating or solving crossword puzzles. The term is a combination of "cruci-" from "crucifix," meaning cross, and "verbalist" from "verbal," indicating a person who deals with words. cruciverbalists are often responsible for designing crossword puzzles, and they possess a deep knowledge of wordplay, vocabulary, and the techniques used in constructing and solving crosswords. They aim to make puzzles that are both challenging and enjoyable for crossword enthusiasts.

Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
ACROSS 1. Type of oscillator, abbr. 2. Stock symbol for Texas Instruments 4. Chemical symbol for rhodium 5. Substrate for mounting components, abbr. 8. Unit of inductance, abbr. 10. Chemical symbol for silver 11. Pseudomorphic high-electron-mobility transistor, abbr. 12. Frequency pass range of a filter, abbr. 14. Chemical symbol for niobium 16. Indium phosphide, abbr. 18. Semiconductor and calculator company, abbr. 19. Directions for verifying proper function, abbr. 21. A measure of linearity and spectral purity 23. Change in the carrier frequency of a FM transmitter produced by the modulating signal 24. Miniature RF connector 25. BlackBerry, Jordana, etc., abbr. 26. Chemical symbol for tin 28. Amateur Radio Association 30. Chemical symbol for cobalt 31. Galilean moon 32. Connector attachment method 33. Army-Navy spec 34. Synchronous Digital Hierarchy 36. Frequency division duplex, abbr. 37. The voltage point of a BJT discovered by the man after whom it is named 40. Determined the period between events 43. Elementary particle 44. ECM response 45. Short for synchronous 48. RF Integrated Circuit 52. International phonetic alphabet letter "I" 53. _____-Kutta method of differential equations 55. BASIC looping keyword 56. Applied Computational Sciences, abbr. 58. Chemical symbol for radon 59. Has a positive phase wrt a reference 62. Opposite of a LO 63. Chemical symbol for arsenic 64. Grade given to a successful go-nogo test 66. Switch position 67. Type of flip flop 68. Having a ferromagnetic center 70. Narrowband Advanced Mobile Phone System 75. Analog-to-Digital 76. Unix, Linux or Windows 78. Between-series connector 81. 1e3 uV 82. Chemical symbol for neon 83. Longerons 84. Chemical symbol for selenium 85. Part of a FOR loop 87. Unit of current 88. Ratio of circumference to diameter 89. Rádio Nacional de Angola, abbr. 90. Positive voltage lead color	DOWN 1. Unit of capacitance, abbr. 3. Greek letter 4. Computer monitor cable type, abbr. 5. Greek letter 6. Binary star system nearest to earth 7. Graphics file extension 9. Heterojunction Bipolar Transistor 10. Determination of cause and effect 13. Gold conductor connection to a die 15. Components in a parts list 17. _____&Schwarz 19. Agilent's EE design software 20. Type of wire insulation 21. End of soldering iron 22. Motorola's Digital ___ 27. Current summing point 28. Scale manufacturer in East Rockaway, NY 29. A non-commercial radio service as set by a recognized cognizant government agency, 2 wds. 30. Computer Assisted Design and Development 35. Amateur radio enthusiast 36. Finite-Element Model 38. Chemical symbol for ruthenium 39. Its signal is injected into a mixer, abbr. 41. RF__, SO__, MM__, etc. 42. The equivalent of MHz 45. Signal-to-Noise Ratio 46. Unit of length, abbr. 47. Chemical symbol for nickel 49. Upper frequency, abbr. 50. One port of an amplifier 51. Column Grid Array, abbr. 52. Charged particles 54. Radar return signal 55. Numerical quantity that is not a whole number 57. Trigonometric shape 59. Chemical symbol for lanthanum 60. Amplifier Solutions Corporation, of Colmar, PA, abbr. 61. A measure of receiver sensitivity, abbr. 64. Max or min voltage of a waveform 65. Electronics manufacturer with "meatball" logo 67. Prefix for semiconductor PNs for military use 69. U.S. military agency, abbr. 71. A common battery cell size 72. RF systems company in Rochester, NY 73. International phonetic alphabet letter "P" 74. Junk e-mail 75. Chemical symbol for argon 77. Adjust a pot 79. Total Radiated Power 80. Chemical symbol for einsteinium 81. Degree of IC sophistication 86. Logic gate 88. Chemical symbol for palladium
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