I have an SDR under my bed that I like to listen to at night, I have three cables coming into the bed room from various locations in the house where the antenna are mounted. I'm kind of bed ridden most night so I want to make a box that can just switch between the long wire SW, the little ADSB dipole under the bed, and the 1m yagi. Best would be have the box mounted to a wall next to the bed. But what kind of switch can handle kHz to 2 Mhz with low noise or dropping db? I know it should be in a metal box. Would a splitter work where you lose 3db on each tap work? or would that create a huge antenna that would just kill the band width of the three antennas? Can you use just a regular three way rotor switch?