DJI Mavic Mini [Maximum Range in Rural Area with Extreme Interference Surounding - 2.4Ghz VS 5.8Ghz]

I just bought the DJI Mavic Mini and would like to test the limit of the signal between 2.4Ghz and 5.8Ghz in in extreme interfering surounding. (High tension & tall building with wifi interference)
2.4Ghz should get better signal in Rural Area which can go up to 2KM but in my situation it can only reach 300m. Surprisingly when i change to 5.8Ghz it able to reach 550m. So I recommend you guys using manual channel before you go for your shoot.
Thanks.

I will rate Mavic Mini as following:-
Video quality : 9/10
Price : 10/10
Range : 3/10
Resistance to wind : 5/10
Build quality : 5/10

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Music :
1.Can We Kiss Forever Feat Adriana Proenza https://www.youtube.com/watch?v=DKbfBSrjVHA
2. Said The Sky - All I Got (feat. Kwesi) https://www.youtube.com/watch?v=X-sIsWrqAaU

Видео DJI Mavic Mini [Maximum Range in Rural Area with Extreme Interference Surounding - 2.4Ghz VS 5.8Ghz] канала Aaron T