Take a break and work this week's electronics technology themed crossword puzzle. All the words are pulled from a hand-built list of terms, names, and abbreviations that have only to do with science, mathematics, and engineering. If you want a crossword with names of movie stars and obscure countries, try the local newspaper. If you want to exercise your nerd knowledge, this is the one for you.
Reproduction of this puzzle without the express permission of RF Cafe is prohibited. acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words 
1. Referring to electrons, protons and neutrons 6. Heat-shrink ______, for insulating solder joints 11. Apollo 11 astronaut Buzz ______ 13. International phonetic alphabet letter "P" 15. Keyboard key 16. RF & microwaves magazine founded by Gary Breed, now Summit Technical Media (abbr.) 18. Filter type that blocks upper frequencies (abbr.) 19. Chemical symbol for calcium 20. Type of logic gate 22. Chemical symbol for radium 23. Lowest power level capable of being demodulated (abbr.) 25. Maximum Usable Frequency 26. Logic family 27. The measure of heat intensity 31. Current-voltage phase mnemonic 33. Part of a directive antenna that derives energy from mutual coupling with the driven element (2 wds.) 41. Automated Test Equipment (abbr.) 42. Process by which a beam of light is spread out as a result of passing through a narrow aperture 47. UMTS terrestrial radio access (abbr.) 49. Exponent that returns the original number 50. 30 Hz to 300 Hz 51. Start frequency (abbr.) 53. Chemical symbol for holmium 54. Chemical symbol for magnesium 55. 1/000 of an amp (abbr.) 56. Line of Sight (abbr.) 58. Heatsink feature 60. This calculus operation yields current through an inductor 62. RF design consultant in Rochester, NY 64. Microsoft's interpreter BASIC supplied with DOS 65. Do like a vector with a changing angle | 1. Chemical symbol for aluminum 2. Time division duplex (abbr.) 3. Used logic gates 4. 1/000 of an inch 5. One port of an amplifier 7. One type of electron spin 8. Strong, lightweight wood 9. Innovative Power Products, Holbrook, NY (abbr.) 10. 1e-6 mA 11. Basic element 12. Part of this website's title 14. RF ____, the world's best engineering website 16. Amateur radio enthusiast 17. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.) 19. The "C" in AC or DC 21. A Ham station that operates from several grid squares or counties during a contest 22. Have a chemically induced efffect 24. Bore a hole 25. Greek letter (micro) 26. IC 28. Type of programmable device (abbr.) 29. Adjust 30. Data transmission pathway 32. Wiring assembly 34. Amateur Radio Direction Finding (abbr.) 35. Theoretical 36. A three-terminal power semiconductor device noted for high efficiency and fast switching (abbr.) 37. Reflected radar or sonar signal (pl.) 38. Engineering Change Notice (abbr.) 39. 3rd planet 40. Prefix meaning ground or earth 42. Weatherproof cover for a radar antenna 43. Chemical symbol for iron 44. Performs a disk operation 45. Curly-Q type light bulb (abbr.) 46. Bands between RF and baseband 48. Martin ____, "Test & Measurement World" magazine editor (c2009) 52. ____RF, passive RF component manufacturer in Huntersville, NC 55. Very large unit of apparent power (abbr.) 57. Unix, Linux or Windows (abbr.) 58. Fast Fourier transform (abbr.) 59. Mate to a bolt 60. Logarithmic ratio (abbr.) 61. Semiconductor and calculator company (abbr.) 62. Read-only (abbr.) 63. Morse Code for "from" |
See solution below

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