For two decades, I have been creating custom engineering- and science-themed crossword puzzles for the brain-exercising benefit and pleasure of RF Cafe visitors who are fellow cruciverbalists. This October 20, 2019, puzzle uses a database of thousands of words which I have built up over the years and contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, etc. You will never find a word taxing your knowledge of a numbnut soap opera star or the name of some obscure village in the Andes mountains. You might, however, encounter the name of a movie star like Hedy Lamarr or a geographical location like Tunguska, Russia, for reasons which, if you don't already know, might surprise you. The jury is out on whether or not this type of mental challenge helps keep your gray matter from atrophying in old age, but it certainly helps maintain your vocabulary and cognitive skills at all ages. * Click here for a list of RF Cafe advertisers. cruciverbalist: [noun] cruci- ("cross") + verbal ("words") + -ist ("agent, person") -- A person who constructs or works crosswords.
Reproduction of this puzzle without the express permission of RF Cafe is prohibited. acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words 
<click for full size to print> 1. Object orientated programming term 5. Conductor with enamel insulation 11. C# statement that ensures Dispose is called even if an exception occurs 15. Chemical symbol for gold 16. International phonetic alphabet letter "K" 17. A common battery cell size 18. Type of logic gate 19. Apollo 11 astronaut ____ Armstrong 20. Stock symbol for Boeing 21. Chemical symbol for neon 22. Type of current 24. An abbreviation for "receiver" 25. Chemical symbol for argon 26. Network department (abbr.) 28. Printed Wiring Board (abbr.) 30. Chemical symbol for einsteinium 31. Chemical symbol for lithium 32. Type of data conversion device (abbr.) 33. Chemical symbol for argon 35. Chemical symbol for selenium 36. Unit of capacitance (pl.) 37. Chemical symbol for selenium 38. Chemical symbol for lithium 39. Keyboard key 41. Parts _____ 44. Unit of time 46. Ham's code for "The net has traffic for you. Stand by." 47. Erbium Doped Fiber Amplifier (abbr.) 49. Type of file operation error 52. Study for a test just before taking it 53. Radio-Electronics-Television Manufacturer's Association 54. Armored cable type 55. Undesirable background information 56. A star that suddenly becomes much brighter and then gradually returns to its original brightness over a period of weeks to years 59. Solid of rotation 60. Parameter that is a figure of merit for receiver performance in presence of multiple signals (abbr.) 63. Automatic network analyzer (abbr.) 64. ____ Logic: Name give to devices surrounding and assisting processors 66. Type of unidirectional antenna 69. Electrical overstress (abbr.) 70. Front edge of a wing (abbr.) 71. 1E6 nanoseconds 72. Overall functional unit 75. A BPF specification (abbr.) 77. Morse Code for "from" 78. Person responsible for program spending (abbr.) 79. Chemical symbol for lanthanum 81. Mass unit (abbr.) 82. Crystal filter type (abbr.) 84. Unit for 1,000,000 watt-seconds (abbr.) 85. One port of an amplifier 86. Slang for helicopter 87. Intel x86 command for " jump if above" 88. Read-only (abbr.) 89. Intermodulation (abbr.) 91. Circuit path with very high or infinite impedance 93. Galilean moon 94. PC follower 96. Wheel attachment point 98. Opposite of O.D. 99. Parameter that is a figure of merit for receiver performance in presence of multiple signals (abbr., pl.) 100. Kilohertz 101. _____-Carlo analysis | 1. Mathematical calculation of RF component string (2 wds.) 2. Chemical symbol for lutetium 3. Term for asymmetry of a statistical distribution (pl.) 4. Chemical symbol for silicon 5. Creates a code version of a semiconductor device 6. Chemical symbol for gallium 7. _____ Microwave East (part of L3-Com), RF component manufacturer located in Hauppauge, NY 8. One of the Ws in WWW 9. Infrared (abbr.) 10. Mr. Fermi's first name 11. Schema for computer or device presentation to the operator (abbr.) 12. _____ rule, a 1950s engineer's tool 13. Chemical symbol for niobium 14. GaAs (2 wds.) 21. Chemical symbol for neptunium 23. Chemical symbol for cesium 25. Chemical symbol for aluminum 27. Chemical symbol for scandium 29. 10 decibels 32. Airport Surveillance Radar (abbr.) 34. Positive voltage lead color 38. Low Noise Amplifier (abbr.) 40. 30 kHz to 300 kHz 42. Microprocessor vendor 43. PCB interconnect 44. Unit of inductance 45. C# statement that ensures Dispose is called even if an exception occurs 46. Type of matrix barcode used with laser scanning(abbr.) 48. Amateur Radio Association (abbr.) 50. Antenna gain unit (abbr.) 51. Stock symbol for Texas Instruments 52. World's largest yearly convention of gadget and device manufacturers (abbr.) 57. Exponent that returns the original number 58. Unit of apparent power (abbr.) 61. Chemical symbol for iron 62. U.S. military organization (abbr.) 64. Global System for Mobile Communications (abbr.) 65. Channel used for earth-to-satellite communications 67. Aluminum Gallium Arsenide 68. Bands between RF and baseband 71. One axis of an ellipse 73. A major search engine 74. World's 1st fully electronic digital computer (abbr.) 76. Monte-_____ analysis 78. Centimeter (abbr.) 80. Army-Navy specification prefix 81. Unit for 1,000 watt-seconds (abbr.) 83. Write-Once (abbr.) 90. 300 kHz to 3 MHz 92. Unit of time (abbr.) 93. S12 or S21 (abbr.) 95. Chemical symbol for thallium 97. Electromagnetic (abbr.) 98. Network department (abbr.) |
See solution below

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