Simon wrote:
Thanks alot for your quick replies guys,

SNIP

In an ideal situation I'd like to get the
transmission beam down to 1 degree, 10 degrees might be acceptable I'm
not sure.


Simon, About 10 years ago I worked on a 1 degree beamwidth antenna [gain
equals something around 45 dB] for a satellite ground station. It was 12
feet in diameter and the frequency range was 24 GHz!!

A simple scaling of that dimension yields 12*(24,000/433)= 665 feet
diameter!!

Are you sure you really want/need that narrow a beamwidth or an antenna
with more than 40 dB gain?

DD, W1MCE