>
>I would like to get at least a 100m out of it. Now, I had a brush with
>radio signals in my studies fifteen years ago and I remember something
>that a dipole size is a calculation of wavelengths. Can I make a bigger
>dipole? Oh yes, it must be somewhat omni directional. What else can I
>do?
>
>I dont see any antenna on the receiver (haven't opened it up yet). Can I
>do something here?

Add a loop yagi to the receiver, or better yet, a 4-6 turn helix.
You can't have gain without directivity, but all that takes is someone to
point the antenna at the transmitter during flight.
You can also add receiver gain with mini-circuits MMIC amplifiers.
If you mess with the transmitter, you need a ham licence.

--
Dave's Engineering Page: http://www.dvanhorn.org

I would have a link to http://www.findu.com/cgi-bin/find.cgi?KC6ETE-9 here
in my signature line, but due to the inability of sysadmins at TELOCITY to
differentiate a signature line from the text of an email, I am forbidden to
have it.

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