Could you kindly explain me or advise following please...
I have a TP-link wifi router .... when i measure signal strength just in the vicinity of the router- literally i touch my smartphone (with wifi signal strength measurement application) to a wifi router antena - i get signal strength -15dbm. The manufacturer datasheet says - "wifi transmission power <30dbm".
So why do i have -15dbm then just at immediate vicinity of the router ? Where does 45 dbm go? (from 30 dbm down to -15)
Thank you so much.