At 08:49 AM 8/2/01 -0500, Jim wrote: >Gotta reply to this ... > >A 1/4 wave radiator DOES NOT radiate straight >up. As a matter of fact, this is where *minimum* >radiation takes place. Any antenna handbook >will easily bear me out on this. You're right, I disremembered. However, the 5/8 is still better at concentrating power twoard the horizon, than the 1/4 wave. The 1/4 wave works out well for working spacecraft, because it has moderate gain above the horizon, and as the Sc passes overhead, the antenna null is roughly compensated for by the drop in range. Haven't tried ISS, but I worked MIR a few times, before it went into geosink orbit. -- 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. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.