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Toshiba RF Receiver for HDTV

Toshiba RF Receiver for HDTV. Team: Josue Caballero, Brett DiCio, Daniel Hooper, Efosa Ojomo, George Sewell. Presentation 10: 02/10/2005. Antenna Construction. Currently built factory replica* Bent torroid, unpredictable Receiving antenna built from picture

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Toshiba RF Receiver for HDTV

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  1. Toshiba RF Receiver for HDTV Team: Josue Caballero, Brett DiCio, Daniel Hooper, Efosa Ojomo, George Sewell Presentation 10: 02/10/2005

  2. Antenna Construction • Currently built factory replica* • Bent torroid, unpredictable • Receiving antenna built from picture • Contacted Aaron, he is sending their antenna • Found design for combination UHF/VHF reciever antenna • Crude design • Overwhelming signal • Parts – Wire is hard to find...

  3. Discone Antenna • Discone antenna meets several requirements • Reliable?* • 50Mhz design is 3-4ft • Requires large material • Copper sheeting = $$

  4. EZNEC Antenna Modeling Software http://www.eznec.com/ … demonstration using demo …

  5. Test Table

  6. Complete Test Setup

  7. Brett Tests an Antenna

  8. Shielding? • Current total power levels not exceeding 2 microwatts • Signals barely extend to edge of test table • Amplification needed

  9. Stuff to do • Meet with Lason • Radiation pattern • Options • Meet with Cook • Combination Antenna • Discriminating transmission design • Repeat testing • More testing

  10. Resources • http://www.northcountryradio.com/Articles/discone.htm

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