For decent FPV experience one is key ingredient, LRS (Long Range System) UHF system. Most if not all operate at around 433MHz frequency and RangeLink is no exception. On this page we'll try and cover some of the basic and some advance setup of RangeLink.
Recipe for successfull FPV is good video link, and there is no such with bad antennas. Most of the stock antennas we are getting with the video transmitters and receivers are usually totally out of tune and building your own requires certain tools. One important tool that is frequently mentioned on forums is spectrum analyzer but so far it was too expensive and few have them, but not anymore. Solution is RTL-SDR Spectrum Analyzer.