1. An isotropic mobile phone station has 10kW transmitting power. Person A is at 1km from it while B is at 2km.
-Calculate Power density for A or B. State the assumption required to perform calculation.
-If A and B using same mobile phone, which phone shows higher reception bar?
2. The mobile phone used has effective area of 3m^2 and good signal reception required receiving power of 1mW.
-Calculate the receiving power of mobile phone A and mobile phone B.
-Which mobile phone has good coverage?