2. The 15km transmission length can only be realized under the FCC conventional when measured in an out of doors surroundings 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 Handle, https://m3mhomes.com/commercial/m3m-atrium-57-sector-57-gurgaon/