On 2 Feb 2006 07:05:31 -0800, "bpnjensen" wrote:

And remember on the ferrites- if they are big enough, you can make multiple
passes through them- the reactance goes up as the square of the number
of
turns- saves on ferrites.

Dale W4OP

Hi Dale - I've done this with standard electrical cords (like zipcord),
but that's much smaller stuff and works OK with little snap-on types of
ferrites. Your comment suggests that one would benefit from one of
those great big toroids about 4 to 6 inches across, threading the coax
through it many times - is that right? If so, is it best to wind it
tightly, or does that risk messing up the construction of the coax?

Thanks,
Bruce Jensen

There's no electrical reason to use anything thicker than RG-58/U for
HF receiving. You can get 6 loops through your standard Radio Shack
ferrite.
http://www.wr6wr.com/newSite/article...ndyou0598.html

http://www.radioshack.com/product/in...tId=2103979&cp