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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