Avid cruciverbalists amongst us will appreciate this new RF & Microwave crossword puzzle that has a theme related to engineering, mathematics, chemistry, physics, and other technical words. You will never be asked the name of a movie star unless he/she was involved in a technical endeavor (e.g., Hedy Lamarr). Enjoy!
Reproduction of this puzzle without the express permission of RF Cafe is prohibited. acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words 
1. Unit of admittance (pl.) 5. One element of a scattering matrix (hyph.) 11. Innovative Power Products, Holbrook, NY (abbr.) 12. Radio Direction Finding (abbr.) 14. Loose end of a cable 16. Special diode type that can be switched (abbr.) 18. Filter type that blocks frequencies in a specified band (abbr.) 19. Antenna radiated power measurement (abbr.) 20. The "A" in ATE 23. Adjust 24. Extended Binary-Coded Decimal Interchange Code (abbr.) 26. Elementary particle 27. Powers pneumatic devices 29. Radio Amateur Civil Emergency Service (abbr.) 30. Chemical symbol for lead 31. One system's phonetic letter "z" 33. Unix, Linux or Windows (abbr.) 36. Fraction of incident light or radiation reflected by a surface or body 38. ARRL's magazine 40. Chemical symbol for xenon 41. Write-Once (abbr.) 42. Type of flip-flop 43. What is the study of objects travelling faster than sound 45. Ham-ese for Young Lady 46. Chemical symbol for lithium 47. European equivalent to the U.L. 48. Type of e-mail address system (abbr.) 49. ___-___, RF switch manufacturer in Ventura, CA 51. Chemical symbol for einsteinium 52. Electromagnetic interference (abbr.) 53. Switch position 55. Geometric solid having two ends which are similar, equal, and parallel rectilinear figures, and sides which are parallelograms 59. Official Space Shuttle designation (abbr.) 61. Digital intelligence 63. Verbal communications 64. Raise a number to the 3rd power 65. Sends information 67. Megohm (abbr.) 69. 1/000 of an amp (abbr.) 70. Direct Memory Access (abbr.) 71. One port on a BJT 72. Radio Amateurs of Canada (abbr.) 75. Stock symbol for Harris Communications 77. Which alloy of copper and nickel has an electrical resistance which barely changes with temperature 78. Application Specific Integrated Circuit (abbr.) | 2. Opposite of a LO 3. Adjusts circuit parameters for best performance 4. Longitudinal shape-forming structural element 6. Chemical symbol for praseodymium 7. Analog-to-Digital (abbr.) 8. RF design consultant in Rochester, NY (2 wds.) 9. ECM response 10. Statistical yield analysis (2 wds.) 13. Integrated Services Digital Network (abbr.) 15. Internet protocol (abbr.) 16. System On Chip 17. Increase voltage linearly 18. Chemical symbol for beryllium oxide 19. Electronics Industry Association (abbr.) 20. Supplemental devices 21. Service of the ARRL that helps hams solve technical problems (abbr.) 22. The Brits call it a valve 24. Chemical symbol for erbium 25. Stock symbol for Boeing 28. Remove oxygen from or add hydrogen to a compound 32. Adds an impurity to a semiconductor 33. The "O" in CMOS 34. Satellite EHF Communications for Mobile Multimedia 35. Its chemical symbol is Mo 37. Family of ICs with a certain component density level (abbr.) 38. Ham's code for "Shall I decrease power?" 39. Uppermost surface 41. 3-phase transformer configuration 44. Types of power supplies 50. Greek letter 54. Logic gate 55. Computer monitor resolution measure (abbr.) 56. Last statement in a BASIC routine 57. Chemical symbol for scandium 58. Unit of inductance (abbr.) 60. Add two or more inputs 61. Dual Tone Multi-Frequency 62. Amateur Radio Association (abbr.) 63. Miniature threaded RF connector 66. Miniature threaded RF connector (pl.) 67. 1/000 of an amp (abbr.) 68. Workplace safety group (abbr.) 73. PC follower 74. Chemical symbol for calcium 76. Chemical symbol for silicon |
See solution below

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