Loss won't be a problem. The effects of coupling will be a change in the
feedpoint impedance of the driven antenna, and a change in the radiation
pattern. Because the coupling between collinear elements is relatively
weak, all you're likely to notice is that the higher frequency antenna
might require a little adjustment from its calculated length in order to
achieve resonance.

Roy Lewallen, W7EL

N4IXT wrote:

Thanks for all the replies!

It sounds as though if I keep "short_rope" over one wavelength in length
(which I can do), that would do the best job of minimizing loss.