2. The 15km transmission length can only be achieved underneath the FCC conventional when measured in an out of doors setting with out interference. The SRRC conventional is adopted in mainland China, along with the furthest transmission length is 8 km. Mavic 3M with RTK module for centimeter-level positioning. Flight https://m3mhomes.com/m3m-altitude-sector-65-gurgaon-redefining-luxury-and-urban-living/