2. The 15km transmission length can only be reached under the FCC conventional when calculated in an out of doors setting without interference. The SRRC common is adopted in mainland China, and also the furthest transmission length is eight km. Mavic 3M with RTK module for centimeter-amount positioning. Flight Regulate, https://m3mhomes.com/residential/m3m-opus-at-m3m-merlin-sector-67-gurgaon/