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
| 
