I have read many times about folks losing connection between the controller and the Mavic 2 and was curious about how fragile or robust is this connection. I did a bit of research and this is some of what I have learned. The Mavic 2 is using Occusync 2.0 which utilizes OFDM for video and FHSS for data. Both of these very robust transmission architectures that are inherently relatively immune to interference problems. In addition, they are packet based systems. If a data packet get corrupted it just gets re-transmitted. Any problems with signal reflections like from a building or water are highly unlikely. And since both the controller and aircraft both have dual antennas I believe they utilize diversity principles, which enhances the signal strength, because they are spaced at least a wavelength apart. The biggest concern for interference is from competing larger amplitude RF signals in the same spectrum (WiFi, cellular, etc) which have the potential to overwhelm the receiver input circuitry, effectively blocking the transmission.