A mobile base station (BS) in an urban environment has a power per m2 measurement of 4 µW m-2 at a distance of 175m from the BS. Assuming the propagation follows the inverse fourth power law ) what is a reasonable value to assume at a distance of 350m from the BS?
Tia
+37159 The REFLECTED wave decays by the 4th power....the transmitted wave at a distance only decays by the 2nd power....sooo
Power ~ k/x^2
4 uW/m^2 = k/175^2 4 (175^2) = k
?? = k/350^2
4(175^2) /(350^2) = power at 350 = 1 uW/m^2
Fixed typos...Thanx Chris ! Answer not changed.....
