I have a new DX Engineering 8-position remote antenna switch (http://www.dxengineering.com/Parts.asp?ID=3046&PLID=85&SecID=33&DeptID=17&P artNo=DXE-RR8A-HP). Obviously the shields of all connected coax cables are grounded. Should I wire it so the unused antennas are grounded? Jim N7US