On Fri, 21 Nov 2008 04:55:35 -0800 (PST), Steve
wrote:

On Nov 21, 12:32*am, Richard Clark wrote:
On Thu, 20 Nov 2008 19:47:24 -0800 (PST), Steve

wrote:
However, none of these
programs are written to cover the case of a two or more-turn loop.

Hi Steve,

For transmit, there's nothing to "gain" by it.

Success generally floods the marketplace and few complain about not
finding resources to make a knock-off.

73's
Richard Clark, KB7QHC

Yes, I know there's nothing to gain in terms of performance. However,
I have very little space to work with. I have a 1 meter diameter loop
installed in my (tiny) attic that works very respectably on 10-30
meters. It won't get me onto 40 meters, though, and getting onto 40 is
either going to require a much larger diameter single-turn loop, a two-
turn loop, or a much more robust capacitor. Trying out a two-turn loop
seems like it would be the easiest and least expensive alternative,
and I already have the copper tubing I would need.

Hi Steve,

As offered by another corespondent here, the work of Reg Edwards
revealed that a multiturn transmit loop, designed for "efficiency's
sake" is never as efficient as a single turn loop. There are, of
course, any number of alternative designs if you don't want
efficiency. Many of those designs are touted here in this group -
usually appended with hitherto unrealized advances the masters were
never aware of. Usually, the longer the thread, the poorer the
design.

You have already recognized the significant variables you would have
to attend to to go lower in frequency - it is not for the faint of
heart and the Q keeps climbing.

73's
Richard Clark, KB7QHC