It works like this. Plug our XSC modem of your choice into the USB Port of your computer. The modem will mount as a COM port on your PC. Open the COM port and start sending data to the modem. The modem will forward your data to all XSC compliant devices within range (it is also possible to speak to a specific device when other controllers are in range).
An outside antenna will need to be installed in order to reach the 15 mile limit of these devices. When you choose this optional antenna we will include everything you will need to install this except for the pole. Included will be the Cushcraft PC9013 antenna, 20 feet of cable (longer cables are not recommended) and the connector to connect the board to the cable. Purchase a pole to mount the antenna from your local home improvement store and install the antenna. Connect the board to the antenna via the provided cable and start sending commands.