EX 715 · Chapter 3
Wireless Communication past question
3.1 Review Free space propagation model, radiated power and electric field
If a transmitter produces 50 watts of power, express the transmit power in units of (i) dBm, and (ii) dBW. If 50 watts is applied to a unity gain antenna with a 900 MHz carrier frequency, find the received power in dBm at a free space distance of 100 m from the antenna. What is Pr (10 km)? Assume unity gain for the receiver antenna.