Jim's church has an auxiliary building that's about 300 feet away and they'd like to create a connection in order to broadcast the church service when they need overflow seating. Leo says he can create a directional Wi-Fi setup that will beam the service directly to the building without the need to deploy cable. He should check out this article at RadioLabs.com. It won't cost any more than running an HDMI cable. He'd want to use baluns in that regard and run ethernet anyway, which would cost him money also. Leo recommends MonoPrice.com for inexpensive cabling if he decides to do it wired.