Reproduction of this puzzle without the express permission of RF Cafe is prohibited. 
| ACROSS | DOWN | 1. Mate to a transmitter 4. Surface for a pointing device (2 wds.) 8. Chemical symbol for thallium 11. Threaded fastener 13. Turn on the computer 15. Power supply vendor in Andover, MA 18. Mr. DeForest's first name 19. Positive elementary particle found in the nucleus of all atoms 20. Software engineering tool (abbr.) 21. Finite Element Analysis (abbr.) 23. Chemical symbol for lutetium 25. Decibels above or below a dipole antenna (abbr.) 27. Adjusts a pot 28. (Repeater Term) A code to activate a repeater function e.g. auto patch, link etc. (2 wds) 31. Antenna radiated power measurement (abbr.) 34. Last stage in a transmitter (abbr.) 36. Input intercept point (abbr.) 38. Specify system parameters 41. Circuit for maintaining constant voltage (abbr.) 43. Electronics manufacturer with "meatball" logo 44. Slang for Ham radio equipment made in Japan or the Orient (2 wdds.) 45. Earth's natural satellite 46. Write software 47. Type of logic gate 48. Effective Radiated Power (abbr.) 49. Thin-film hybrid and discrete microwave and millimeter-wave components vendor in Sunnyvale, CA 50. Printer output resolution unit (abbr.) 51. Chemical symbol for selenium 56. Internet addresses 58. Describes a periodic waveform with vertical leading edges and sloped trailing edges 61. Transition from solid to liquid phase 62. Current-voltage phase mnemonic 64. Mate to a TX 65. The "B" in BER 66. Stock symbol for Advanced Micro Devices 68. A 3rd-order polynomial (pl.) 71. Base 16 number system (abbr.) 72. Opposite of set 73. ____RF, passive RF component manufacturer in Huntersville, NC 74. The largest asteroid 76. Test equipment (abbr.) 78. Subjects a circuit to extreme operation 79. Competitive event where Hams ply their skills against each other for points (pl.) | 1. Chemical symbol for rhodium 2. The "C" in CPS 3. Institute of Electrical and Electronics Engineers 5. Small DIP package (abbr.) 6. Moon of Saturn with retrograde orbit 7. Ham abbreviation for "distant station" 8. Device to assist in the performance of a chore (pl.) 9. One of the first commercial software spreadsheets, (w/123) 10. Vector multiplication that returns a vector value (pl.) 12. Government program to bring electricity to farms (abbr.) 13. Chemical symbol for bromine 14. Part of a FOR loop 16. Software drafting tool (abbr.) 17. The "C" in CMOS 21. Network file transfer protocol (abbr.) 22. The cell band above DCN 24. Synchronous Digital Hierarchy 26. Deutsche Industrie Normenausschuss 29. Helium, iron, silicon, or uranium, for example 30. Join together 32. Constellation : The scales 33. Rise over run, 1st derivative 35. Powers pneumatic devices 36. U.K. equivalent of the IEEE 37. Type of e-mail address system (abbr.) 39. BASIC looping keyword 40. Charged particle 41. Flash caused by an electric current ionizing a gas or vapor 42. Common gateway interface (abbr.) 43. One state of matter 52. Voltage-current phase mnemonic 53. Common shorthand reference for a capacitor 54. One of the Ws in WWW 55. Term used in soldering to achieve the condition that occurs when the metals being soldered are hot enough to melt the solder so it flows over the surface 57. Mathematical quantity that has magnitude, but no direction 59. Path followed by a heavenly body around a star 60. The "O" in CMOS 61. A circuit that takes two or more input signals, and produces an output that includes the sum and difference of those signal frequencies (pl.) 63. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.) 65. Digital transmission figure of merit (abbr.) 67. Type of data conversion device (abbr., pl.) 69. Ultraviolet (abbr.) 70. Chemical symbol for calcium 71. Form of energy arising from the kinetic energy of atoms and molecules 75. Unix, Linux or Windows (abbr.) 77. Unit of time (abbr.) |
Answer below

|