When choosing between 2.4 and 5.8ghz, know that 2.4 will get better range, but is susceptible to more common sources of interference. 2.4ghz RC transmitters and many common WiFi signals will interfere with 2.4ghz OpenHD. 5.8 WiFi is less common, for now, and it also conflicts less with most popular RC transmitters. For those reasons, more people currently choose 5.8 for OpenHD.