dxAce wrote:
Just make sure that those rotary switches would not ground un-used antennas.

Good point!

The very best way is to use a amplified multicoupler, as others have stated.
Anything else results in signal loss.

I think you'd find the signal loss negligible on shortwave.

If you were DXing UHF TV I'd feel differently.
--
Doug Smith W9WI
Pleasant View (Nashville), TN EM66
http://www.w9wi.com