Equation for calculating uplink range of communication,
I got one equation but I need to verify is it correct or wrong.
D=10^((Gb+Gm+20log(hb)+20log(hm)+20log(40))-20log(frequency)-PL)/40)
PL=S+N-Pb
D -> Distance bw node and gateway
Gb-> gateway antenna gain(dB)
Gm->Node antenna gain(dB)
hb->Gateway antenna height(m)
hm->Node antenna height(m)
N->Noise margin
Frequency-> MHz
Pb->Gateway transmit power(dBm)
S->Node receiver sensitivity(dBm)
PL-> Path loss