Question: I notice that there are many brands and types of R/C Radios. Are they compatible with eachother? Can I use X Radio with Y Machine? Answer: Most newer multirotors come with a matched radio and drone - so you don't have to worry about exactly how they are communicating. However, those doing DIY or hacking need to know about the various radio protocols. There are quite a few of them and they are, in general NOT compatible with each other. Here is a thread on RCG which explains most of them: https://www.rcgroups.com/forums/showthread.php?2301242-The-Beginners-Guide-to-RC-Protocols
