1) Assignment - GPS Link Budget: GPS-L1 operates at 1575.42 MHz. Assume the satellite has a 25.6W transmitter for the L1 signal, and the user, who is at 20,190 km distance, uses a dipole antenna. When the signal propagates through the ionosphere and troposphere it is undergoes an additional attenuation of 4 dB. For simplicity, assume that the GPS signal is linearly polarized and that the receive antenna is optimally aligned with this polarization. What is the required gain of the GPS Tx antenna to achieve a signal strength (power) of -130 dBm at the terminals of the receiving antenna? Assume the GPS receiver has a 2 MHz bandwidth. What is the total noise power, assuming a perfect receiver? Specify the result *both* in Watts and dBm. Calculate the SNR using the received signal power specified in (a) (specifically: -130 dBm) and the noise power you calculated in (b). Specify your result in dB