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Old May 29, 2011, 12:40 PM
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Kiwi in Germany
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Germany
Joined Jun 2010
2,320 Posts
Quote:
Originally Posted by AleG View Post
I did the drawing in CorelDraw, I have an utility that tells me the length of a line, so I modified a circle arc sector until it had the precise length; the shape goes by the looks-about-right formula.
I haven't tested the antennas yet because I haven't even finished them, I just put the bent wires aside and I'll wait for a new video Tx to test them on, I don't want to tear apart my FPV plane to try them just yet.

I did check the math to calculate the length of an ellipse arc sector but it required more brain power that I can muster on a Sunday afternoon.
My current antennas are made for the 5705 band. Since I am pushing the distance I can really feel that they are not near channel 8. I am thinking of making some at for that channel.
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