Consider a receiver with noise power –160 dBm within the signal bandwidth of interest. Assume a single slope path loss model with do = 1 m, K obtained from the free-space path loss formula with isotropic antennas and fc = 1 GHz, and y= 4. For a transmit power of Pt 10 mW, find the maximum distance between the transmitter and receiver such that the received signal-to-noise power ratio is 20 dB.