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 6, 2019, puzzle contains the names of at least ten advertisers* who help deliver RF Cafe to you every day. Otherwise, it 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. Things in a bill of material
5. RF Connector __________ (RFCT), manufacturer of coaxial connectors and cable assemblies*
11. Filter type with high rate of out-of-band attenuation (aka 'elliptic')
15. Chemical symbol for neodymium
16. Foot/12
17. Unix, Linux or Windows (abbr.)
18. Shorthand for oxygen
19. Wheel attachment point
20. Akin to an EE, CE, AE, etc.
21. Unit of frequency (archaic, abbr.)
22. One component of a complex number (abbr.)
24. Complex Instruction Set Computer
25. Chemical symbol for radon
26. Multifunctional silicon devices (abbr.)
28. Type of logic gate (pl.)
30. PCB mask exposing ray (abbr.)
31. Chemical symbol for berkelium
32. ___ Directory, online listing of circuit board manufacturers and assemblers*
33. Unit of apparent power (abbr.)
35. Opposite of I.D.
36. Tune
37. European equivalent to the U.L.
38. Test equipment (abbr.)
39. MS's server-side script engine for dynamically-generated web pages (abbr.)
41. Web page language
44. Light ray
46. Antenna (abbr.)
47. Cause a circuit breaker to open
49. Electrical component the stores energy in a magnetic field
52. ECM response
53. What kind of a number is divisible only by itself and 1
54. Test point (abbr.)
55. _____ Test Equipment, sells rents, and repairs wide line of TE*
56. Very Long Baseline Interferometry (abbr.)
59. San Francisco ________, fabricator of PCBs*
60. Stock symbol for Intel
63. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)
64. Quickly changing portion of waveform
66. Switch configuration (abbr.)
69. Digital transmission figure of merit (abbr.)
70. Chemical symbol for platinum
71. Unit of time (abbr.)
72. Containing a contaminant
75. BS__ - the degree held by many RF Cafe visitors
77. Chemical symbol for cobalt
78. It can follow an MS
79. 1/000 of an amp (abbr.)
81. Opposite of I.D.
82. Gun safety and education organization (abbr.)
84. Akin to an EE, CE, AE, etc.
85. Unit of length (abbr.)
86. ____ Microwave, maker of circulator and isolators*
87. Chemical symbol for cadmium
88. Chemical symbol for zirconium
89. Radio signals from the cosmos (abbr.)
91. ____ Electronics, for a full line of low-PIM passive RF devices*
93. Network department (abbr.)
94. Pure carrier (abbr.)
96. Plural of locus
98. Boob tube (abbr.)
99. Factor of a polynomial
100. RF __________, co-founded by Murray Pasternack, a supplier of RF couplers, dividers, attenuators, and other passive components*
101. Wire | 1. _________ _____ Products, maker of passive RF components*
2. Time delay (abbr.)
3. 1/1000000 prefix
4. Chemical symbol for tin
5. Aerodynamic force opposing drag
6. Chemical symbol for cobalt
7. High-speed circuit-switched data (abbr.)
8. What do we call a curve formed by a point which moves according to a mathematically defined rule
9. Shorthand for oxygen
10. International phonetic alphabet letter "Y"
11. European equivalent to the U.L.
12. Dilbert's female co-worker
13. Electromagnetic (abbr.)
14. ___-___ _________, producer of RF attenuators, resistors, and other passives*
21. Chemical symbol for molybdenum
23. 1.602E-19 Joules
25. Chemical symbol for rubidium
27. Unlicensed FCC Part 95 realm for personal and business radio use (abbr.)
29. Synchronous Digital Hierarchy
32. Modulation technique (abbr.)
34. Airport Surveillance Radar (abbr.)
38. RF connector type
40. Ratio of circumference to diameter
42. _____ Microwave, producers of RF power, bidirectional, and low-noise amplifiers*
43. _____-wise linear
44. Alloy of copper and zinc
45. Connector vendor headquartered in Bristol, PA
46. Type of current flow (abbr.)
48. Computer monitor resolution measure (abbr.)
50. Coordinated Universal Time (abbr.)
51. Intel 8086 or Motorola 6800 (abbr.)
52. Electromagnetic interference (abbr.)
57. Stock symbol for Lockheed Martin
58. Chemical symbol for beryllium
61. Chemical symbol for niobium
62. Temporary Engineering Change document (abbr.)
64. IC killer (abbr.)
65. Greek letter used for coefficient of reflection (pl.)
67. Type of Morse Code key
68. Base of the decimal number system
71. Pseudomorphic high-electron-mobility transistor, abbr.
73. _____-Carlo analysis
74. Have a chemically induced efffect
76. _____, manufacturer of microwave and millimeter-wave modular amplifiers and integrated assemblies*
78. Related to FM by a differential
80. Modulation type (abbr.)
81. Amateur radio abbreviation for the Oceania region (abbr.)
83. Chemical symbol for argon
90. Part of a FOR loop
92. Chemical symbol for einsteinium
93. Internet protocol (abbr.)
95. Write-Once (abbr.)
97. Unit of volume (abbr.)
98. Chemical symbol for thallium |
See solution below
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