Topband: elevated 4-square

[Jim Brown]

On 8/15/2013 10:46 PM, Jeff Blaine wrote:
> The R has got to translate into a drive impedance shift - but I am wondering what the expected impact to the array should be?

You're asking exactly the right questions, Jeff.  If you're not already 
using SimSmith, or something like it, it should be the next tool you add 
to your kit.  Free, very user friendly if you understand transmission 
lines, and it will help you design matching sections based on modeled or 
measured feedpoint Z. And if you don't have a vector Z analyzer, you 
want the VNWA designed by DG8SAQ, sold by some hams in the UK for about 
$750.

73, Jim K9YC