> >... but what is important is that the antenna is not > > particularly =91directional=92. Its to form part of a solar observatory > > observing emissions from the sun in the frequency range above. > So why is directional bad, considering emissions from the sun come from a > tight and well known direction? =A0It seems that exploiting this > directionality would be useful for signal to noise ratio. The sun tends to move, or seems to to an earth bound observer, at least here in NZ :-) Russell --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .