Alex and LF,

Since optimum Q in an inductor with solid wire requires an air space between
adjacent conductors equal to conductor diameter, would it make sense to wind
a coil with two varnished conductors in parallel and have the conductors in
tight contact?  The idea of parallel conductors is to lower the Q, space the
conductors, and make winding the coil easier.  Has anyone recorded tests of
this winding compared to a simple winding?

I need to know is simply how big the elevated counterpoise should be in
meters to be effective but I do not understand how to extrapolate the
diameter of and effective counterpois in meters (its size) from the graphs.
Please explain use of the graphs for me.

J.