Well, I mean by heavy construction the size of the core, of course, and
the number of turns would influence the size of the balun. A core
picked to satisfy the band coverage and the power and wire size would
typically be larger than some common internal baluns.
Twin lead is a great antenna transmission line. Heavy duty types and
ladder line are cheaper than good coax and have lower loss. One can
easily adpat any station to running balanced line even thru windows with
good results at little effort. Putting a piece of pipe insulating foam
across the bottom of a sill works even with metal windowns. Another
piece of foam stuffed between the sash and upper casement seals against
air leaks.
-Stuart
K5KVH
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|