Martin Toomajian, Jr. DDS, of Watervliet, New York, came up with this clever way to switch out an in-line preamplifier like the popular Grove PRE4 when necessary for transmitting, attaching other accessories, or simply using the antenna alone. Martin uses a standard VHF/UHF TV splitter and a video A/B switch available from Radio Shack and most department stores.
If the preamplifer module is remote-located at the antenna, a seperate coax down-lead is required; we would recommend a low-loss coax like RG6/U available from the same outlets as well as Grove Enterprises. With an indoor preamp, only a short length of coax is needed.