Will I need a balanced Twin-Ax antenna plug,like this ? http://www.ebay.com/itm/R390A-R390-R391-Balanced-Twin-Ax-Ant-Plug-82-5589-RFX-with-RG-58-U-coax-and-BNC-/281415323725?ssPageName=ADME:B:WNARL:US:1123