Impact of Microwave Depolarization During Multipath Fading on Digital Radio Performance

Maintaining adequate cross-polarization discrimination (XPD) is important to both analog and digital radio transmission systems. For analog radio and single polarization digital radio, adequate XPD allows reduction of frequency separation between cross-polarized, adjacent channels to increase the transmission capacity. This is known as inter645 N ATLANTA o HORN REFLECTOR PALMETTO Fig. 1--Path layout, frequencies, and antennas for microwave propagation experiments near Atlanta, Georgia.