Two. The 15km transmission length can only be attained beneath the FCC standard when measured in an outside environment without interference. The SRRC standard is adopted in mainland China, along with the furthest transmission distance is 8 km. Mavic 3M with RTK module for centimeter-stage positioning. Flight Handle, the digicam, https://m3mhomes.com/residential/low-rise-floors-gurgaon/