Radio Man wrote:

Is there a means of testing a 9:1 0r 10:1 balun to make sure
it is the proper impeadance?

Yes, there is, but it takes some special equipment. The best bet is to have the
proper toroid, wind it according to the formula and you shouldn't have any
problem.

http://members.aol.com/DXerCapeCod/z_transformers.pdf

http://www.dxing.info/equipment/impe...ing_bryant.pdf

dxAce