On Sat, 1 Nov 2008 11:11:32 -0400, "Ed Cregger"
wrote:

systems. I'm interested in whether or not the flat plate we see as the
receiver antenna actually radiates power, or is a separate transmitter
antenna used? TIA

I was thinking of the Aegis class warships.

Hi Ed,

The "flat plate" is acually a mosaic of 4100 phased elements driven by
a single RF source.

73's
Richard Clark, KB7QHC