I am using an Antenna with an Open Wire Line for my Boatanchors and also.for my regular Station. Where can I find/buy/trade a Knife Switch,preferably,Double Pole,Double Throw (DPDT) to disconnect and ground the feedline when not in use.----Too many Thunderstorms of late causing havoc with the station. Tnx fr ur help---Olaf,KF4TP---