View Single Post
Old May 29, 2011, 09:39 AM
AleG is offline
Find More Posts by AleG
Registered User
AleG's Avatar
Bangkok
Joined Oct 2007
1,662 Posts
Quote:
Originally Posted by whakahere View Post
Nice. adding this to my FPV folder for later use. Have you tested your antennas to see that they work well on channel 8

How did you go about working out the correct curve. My math has gone down hill over the years and ... I am not that smart anymore.
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.
AleG is offline Find More Posts by AleG
Reply With Quote