A mobile vehicle antenna system , comprising: a scanning antenna system comprising a scanning antenna configured to receive from base stations, for at least a first azimuth heading value and a second azimuth heading value, data comprising mobile communication signals and network parameters, wherein the scanning antenna system comprises a first azimuth alignment device configured to steer the scanning antenna 360 degrees in the azimuth plane; a donor antenna system comprising a donor antenna configured to receive and transmit mobile communication signals to and from a base station, wherein the donor antenna system comprises a second azimuth alignment device configured to steer the donor antenna 360 degrees in the azimuth plane, a controller connected to the scanning antenna system and the donor antenna system, wherein the controller is configured to: receive, process and compare the data comprising received mobile communication signals and network parameters for the at least first azimuth heading value and the second azimuth heading value; determine whether the first azimuth heading value or the second azimuth heading value provides optimal mobile communication signals and network parameters according to predefined criteria; and control operation of the second azimuth alignment device in accordance with the determination to position the donor antenna such that the direction of a main beam of the donor antenna is the same as the direction of a main beam of the scanning antenna at which the optimal mobile communication signals and network parameters were received. a scanning antenna system comprising a scanning antenna configured to receive from base stations, for at least a first azimuth heading value and a second azimuth heading value, data comprising mobile communication signals and network parameters, wherein the scanning antenna system comprises a first azimuth alignment device configured to steer the scanning antenna 360 degrees in the azimuth plane; a donor antenna system comprising a donor antenna configured to receive and transmit mobile communication signals to and from a base station, wherein the donor antenna system comprises a second azimuth alignment device configured to steer the donor antenna 360 degrees in the azimuth plane, a controller connected to the scanning antenna system and the donor antenna system, wherein the controller is configured to: receive, process and compare the data comprising received mobile communication signals and network parameters for the at least first azimuth heading value and the second azimuth heading value; determine whether the first azimuth heading value or the second azimuth heading value provides optimal mobile communication signals and network parameters according to predefined criteria; and control operation of the second azimuth alignment device in accordance with the determination to position the donor antenna such that the direction of a main beam of the donor antenna is the same as the direction of a main beam of the scanning antenna at which the optimal mobile communication signals and network parameters were received. receive, process and compare the data comprising received mobile communication signals and network parameters for the at least first azimuth heading value and the second azimuth heading value; determine whether the first azimuth heading value or the second azimuth heading value provides optimal mobile communication signals and network parameters according to predefined criteria; and control operation of the second azimuth alignment device in accordance with the determination to position the donor antenna such that the direction of a main beam of the donor antenna is the same as the direction of a main beam of the scanning antenna at which the optimal mobile communication signals and network parameters were received. <EOS>