"would you migrate to 5GHz ? it will avoiding interference from 2.4GHz. it can get 3Km distance over WIFI 5GHz, not sure if it can meet your request. "
"we can do it. and also got improvement, it can work on 5Ghz over WIFI, it will avoid much more interference than 2.4G. it reach to 3Km over 5Ghz WIFI combined with data and image link. "