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2/11/2008 Engineering & Science Crossword Puzzle
Reproduction of this puzzle without the express permission of RF Cafe is prohibited. |
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ACROSS 1. A semiconductor switching device with four layers of alternating N and P-type material. 8. Transmit Incremental Tuning, abbr. 9. End Of Transmission 10. Type of Internet e-mail scheme, abbr. 12. Chemical symbol for platinum 13. Direct Digital Synthesis 14. Electromagnetic, abbr. 16. Band between RF and BB 18. Min-to-max voltage of a waveform, abbr. 20. Army-Navy spec 21. One input to a mixer, abbr. 22. Display that came before the LCD 24. Deutsche Industrie Normenausschuss 25. An angle that has more than 90 degrees, but less than 180 26. The "M" in EMF 28. Applied Computational Sciences, abbr. 30. Be behind in phase 32. 300 Hz to 3 kHz 33. Jack Kilby's and Robert Noyce's invention that changed the world, abbr. 34. Ham abbreviation for "distant station" 36. Akin to an EE, IE, CE, AE, etc. 37. Chemical symbol for radium 38. Main brain of a computer, abbr. 40. Chemical symbol for calcium 42. Radar type used for making "blind" landings, abbr. 43. A receiver performance specification, abbr. 44. Voltage-Controlled Oscillator 45. Like a 3-way power divider, hybrid coupler, circulator, etc. |
DOWN 1. End of a soldering iron 2. Web page language 3. Positive voltage lead color 4. Its chemical symbol is I 5. Official Space Shuttle designation, abbr. 6. Infinite resistance 7. Type of memory 11. Generally, the region of the radio spectrum above 1 GHz 15. Said of two functions that arrived at a common point 17. Chemical symbol for francium 19. Phase state between liquid and solid 20. Popular drafting software 21. Chemical symbol for lithium 23. Electronic assembly transport containers 24. Implement used to bore holes 27. Borland's programming language 29. Chemical symbol for californium 31. Modulation type, abbr. 33. International Amateur Radio Union 35. Transceiver, abbr. 37. Type of memory 38. Amplifier vendor in Santa Clara, CA 39. User Datagram Protocol 41. Logic family |
See solution below  |
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Copyright: 1996 - 2026 |
About RF Cafe RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
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