Two. The 15km transmission length can only be attained underneath the FCC regular when measured in an out of doors atmosphere devoid of interference. The SRRC regular is adopted in mainland China, plus the furthest transmission length is 8 km. Mavic 3M with RTK module for centimeter-level positioning. Flight Manage, https://m3mhomes.com/residential/m3m-skycity-sector-65-gurgaon/