ACROSS 1. Part of a directive antenna that derives energy from mutual coupling with the driven element, 2 wds., pl. 8. U.S. Spectrum allocation agency 9. Logic gates 10. Degraded or destroyed performance 15. The "T" in T&M 17. High power density battery chemistry, abbr. 19. One of four lines in a magnetic memory array 20. Prefix meaning magnetic 22. Chemical symbol for cesium 23. A Greek letter in the spherical coordinate system 24. Chemical symbol for selenium 25. The constellation in which Canopus is located 27. Lose phase lock 30. Have a positive phase wrt a reference 31. A measure of receiver quality, abbr. 32. Electromagnetic, abbr. 34. ___/IP 35. Chemical symbol for plutonium 36. ESD protective apparel 39. Complex numbers have real and imaginary of these 41. Receiver power level circuitry, abbr. 42. A type of chemical radical 43. The part of a circle enclosed between an arc and a chord 44. Just above DCS in the spectrum 46. Programmable logic device, abbr. 48. Inventor of the high voltage generator that powers the Jacob's Ladder | DOWN 2. Part of this website's title 3. An angle has less than 90 degrees 4. Chemical symbol for scandium 5. Chemical symbol for molybdenum 6. This is returned when software hits a snag 7. Unit of time, abbr. 10. Class of spread spectrum, abbr. 11. Automated test equipment, abbr. 12. Supplier of high power linear and pulsed RF, microwave and millimeter wave amplifiers in San Marcos, CA 13. 30 Hz to 300 Hz 14. Thread cutting tools 16. Shaft position sensors 18. A physical quantity defined as force per unit area 19. Subject a circuit to extreme operation 21. A chemical compound containing an oxygen atom and other elements, pl. 25. Chemical symbol for aluminum 26. Chemical symbol for gallium 28. 30 kHz to 300 kHz 29. Chemical symbol for praseodymium 33. The amount of matter that a body contains 35. Component 37. PCB interconnect 38. Type of chart 39. Circuit for firing a magnetron, abbr. 40. Engineer who experimented with extremely high voltages 44. Chemical symbol for lead 45. Chemical symbol for strontium 46. Chemical symbol for praseodymium 47. 10^1 numerical prefix |