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etem/dbm2m.py

Forked from cryptolok/dbm2m.py
Created November 4, 2019 13:06
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convert WiFi signal strength (dBm) to distance (meters)
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dbm2m.py
#!/usr/bin/env python2
# a simple script for one of my articles - https://cryptolok.blogspot.com/2017/08/practical-wifi-hosts-triangulation-with.html
from math import log10
MHz=raw_input('MHz FREQUENCY (2417, 5200, ...) : ')
MHz=int(MHz)
dBm=raw_input('dBm TRANSMITTER POWER (23, 63, ...) : ')
dBm=int(dBm)
FSPL = 27.55
# Free-Space Path Loss adapted avarage constant for home WiFI routers and following units
m = 10 ** (( FSPL - (20 * log10(MHz)) + dBm ) / 20 )
m=round(m,2)
print 'DISTANCE : ',m,'m'
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