Mike Coslo wrote:
Somewhere along the line something has to lose mass, unless magic or
supernatural forces are involved.

You seem to be missing the fact of physics that mass
and energy are equivalent forms related by constants.

e = K1*m and m = K2*e

where K1 and K2 are constants.

For transmitting, there's nothing to prohibit mass from
being supplied in its equivalent energy form and then
lost from the antenna through radiated mass.

(energy in) = (mass in)c^2 = (energy out) = (mass out)c^2

When an atomic bomb goes off, mass is not lost - it simply
takes the form of an equivalent amount of energy which, if
we were smart enough, could be converted back to mass.
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com