Herelink radio signal strenght range dbm

Hi everyone,

we would want to know the safest range of the signal dbm.

in ground, qgc shows values of signal about 70dbm

in air, about 1,5-2km distance from home, these values rises at about 90-100dbm.

if the signal noise its about 100dbm… the signal loss will be near these 100dbm?

in other radio systems, these dbm values are too hight and signal degradation occurs.

herelink, have a strong signal with 90-100 dbm and the app signal strong lines, are at 100%

thanks