Reproduction of this puzzle without the express permission of RF Cafe is prohibited. Red, Blue, and Light Gray squares are for the words. 
1. Web's most popular RF site (2 ltrs. + 1 wd.)
4. Measure of how quickly an electron can move through a metal or semiconductor
8. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)
10. System for guiding aircraft (abbr.)
11. Balanced-to-unbalanced device
13. Electronics components & batteries supplier based in Japan
15. Gigantic star in Cetus
17. SIgnal to Noise And Distortion (abbr.)
18. Chemical symbol for beryllium
19. A three-terminal power semiconductor device noted for high efficiency and fast switching (abbr.)
21. Chemical symbol for cobalt
22. Stock symbol for Boeing
23. Unit of inductance
25. Electron beam particle (pl.)
27. Chemical symbol for holmium
28. Electromotive force (abbr.)
29. The "R" in DRC in substrate layout
32. 1E6 nanoseconds
33. Chemical symbol for tantalum
34. Chemical symbol for radium
35. An abbreviation for "transmitter"
37. Commercial Off-the-Shelf
38. European equivalent to the U.L.
40. Shorthand for oxygen
41. Chemical symbol for chlorine
42. One cutoff frequency specification for a bandpass filter
43. ___-AZIMUTH telescope mount
44. Boob tube (abbr.)
45. One port on a FET
47. Quickly changing portions of waveforms
49. Chemical symbol for terbium
50. Chemical symbol for rubidium
51. Parameter that is a figure of merit for receiver performance in presence of multiple signals (abbr.)
53. Opposite of a LO
54. PCB interconnect
56. International Amateur Radio Union (abbr.)
59. Crystal filter type (abbr.)
61. Light rays
62. Digital voltmeter (abbr.)
64. Peak envelope power (abbr.)
66. Suppresses an oscillation
67. The "D" in DC | 1. Move from cell to cell
2. Brightest star in the Aquila constellation
3. BS__ - the degree held by many RF Cafe visitors
4. A type of average
5. Five-bit digital code used in teleprinter application
6. Local Oscillator (abbr.)
7. Time division duplex (abbr.)
9. 1E6 bits per second
10. Chemical symbol for argon
12. Ties a bundle of wires together
13. Finite Element Analysis (abbr.)
14. Unit of electromotive force (pl.)
16. Things in a bill of material
17. Chemical symbol for antimony
18. Early predecessor to an online forum (abbr.)
20. Opamp circuit for converting an inductance into a capacitance, and vice versa
23. Pliers-like surgical tool used in the electronics lab (pl.)
24. A measure of receiver quality (abbr.)
25. Radio navigation reference signal
26. Cable covered by strong jacket
30. Chemical symbol for lawrencium
31. Chemical symbol for bromine
33. Part of a FOR loop
36. Mate to an RX
37. Centimeter (abbr.)
39. Modern battlefield technique (abbr.)
41. Opposite of set
42. Constellation : The scales
43. Chemical symbol for silver
45. Antenna gain unit (abbr.)
46. ______ House, technical book publisher
48. Low impedance amplifier stage that boosts power
49. Code for a type of electrical wire insulation (abbr.)
51. Society of Civil and Structural Engineers (abbr.)
52. Chemical symbol for iron
55. Volts divided by resistance
57. Modulation type (abbr.)
58. Universal Asynchronous Transmit/Receive (abbr.)
60. Arithmetic Logic Unit (abbr.)
63. Army-Navy specification prefix
65. Chemical symbol for palladium |
See solution below 
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