On 16/03/2011 15:17, RussellMc wrote: >> > So why is directional bad, considering emissions from the sun come fr= om a >> > tight and well known direction? It 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:-) > > yes. Definitely orbits the Earth :D ^_^ I'd stick a crossed yagi on a Motor drive on polar mount and monitor H,=20 V, LH, RH polarisations (all 4 can be done with a two output crossed yagi) Depends on the band you want. Even a satellite dish motor will track=20 sun, though you have to change the elevation every few weeks. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .