The radio path ( = 900 MHz) between a mobile phone and the base station has a loss of 30 dB in addition to the free space loss. The base station measures the level of the signal transmitted by the phone, and it sends the phone a command to set the transmit power to a level, which gives a received power level of -80 dBm. The antenna gain of the phone is 2.5 dB and the receiver gain of the base station antenna is 6 dB. a) The distance between the phone and the base station is 600 m. What will be the transmit power level of the phone