Q&A for How to Make a HDTV Antenna

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  • Question
    What are grill screens?
    Community Answer
    Aluminum window screen material, hardware cloth, or any type of metal screening that is no more than 1/2" squares. Cut to the proper size, most metal will become a suitable reflector, as long as any holes are under that dimension. This is frequency related and will vary by the signal you're trying to capture.
  • Question
    Can copper insulated wire be used?
    Community Answer
    Yes. The velocity factor may be different, but probably close enough to bare wire.
  • Question
    What gauge wire should be used? Distance from edge for holes? Also, the dimensions shown in the first step don't make any sense, they add up to 58.75 inches. At best, the drawing is poorly done.
    Robinson Valderrama
    Community Answer
    The drawing and measurements are poorly made, the distance between each point is 5.25 inches, this gives a total of 15.75 inches.
  • Question
    Can aluminum foil be used instead of grill screens?
    Robinson Valderrama
    Community Answer
    yes, but it should be thick enough to maintain the shape. You can make it from a soda can.
  • Question
    If multiple, interconnected antennas are facing each other, will it increase the strength of the reception?
    Community Answer
    No, you will actually make your reception worse. Two antennas will cancel out each other to a point, unless you have away of "tuning" the two antennas.
  • Question
    Does reception depend on compass orientation when making a HDTV antenna?
    Community Answer
    Yes, your antenna should face the HDTV broadcast antenna. Try adjusting the position until you get best results.
  • Question
    Would this TV antenna work to pick up a signal in an FM stereo?
    Community Answer
    No, FM stations are far below the frequencies this antenna is designed for.
  • Question
    Can I use iron wire instead of copper when making an HDTV antenna?
    Community Answer
    Yes, see above. I would be concerned about corrosion or rusting if placed outdoors, though.
  • Question
    Can a duplicate setup be done on the backside when making an HDTV antenna?
    Community Answer
    Yes, as long as reflectors are used on both antennas. However, each will pick up stations from the opposite directions, and the two cables coming from the balun transformers will need to be joined once they leave the antenna using a diplexer (not a 2 into 1 splitter). Look for these on Amazon.
  • Question
    How far from a broadcast tower will this antenna work?
    Community Answer
    The distance depends on your elevation compared to the TV station's, the amount of power the stations has, and the station's transmitting location. It is also dependent on objects blocking the signal.
  • Question
    What gauge wire is the best?
    Community Answer
    #10 gauge will hold its shape better. Electronically, there won't be an appreciable difference.
  • Question
    Can aluminium wire be used to make a HDTV antenna?
    Community Answer
    Yes. In short lengths, the difference between aluminum and copper is negligible.
  • Question
    Why does it say to use screws to secure the elements on a HDTV antenna? Should I use something different that's not a conductor?
    Community Answer
    Using a conductive screw is fine as long as they are screwed into something that is not conductive, like wood or PVC.
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