This is really cool UBiQUiTi have created an online tool for their AirLink / Nanostation devices. So if you are creating a long range wireless link, it is a good idea to calculate the probable performance due to the environment, height, terrain and other factors. Be nice if ALFA did this! You can check out this tool here: http://www.ubnt.com/airlink/ Supported Devices Equipment Characterisation Calculation
