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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