A system for managing radio frequency communications between a plurality of wireless subscriber devices located in an aircraft (850, 1000, 1110, 1170-1173) and a plurality of Air-To-Ground terrestrial base stations (1135, 1145, 1190, 1191) of an Air-To-Ground cellular communications network, comprising: a plurality of radio frequency antennas (400, 405, 500, 520, 810-840, 870, 1120) mounted on the exterior surface of said aircraft (850, 1000, 1110, 1170-1173); data flow control means, responsive to call traffic comprising communications from a plurality of wireless subscriber devices located in said aircraft (850, 1000, 1110, 1170-1173), for dividing said call traffic into multiple segments for distribution among said plurality of radio frequency antennas; and at least one interface means, located in said aircraft (850, 1000, 1110, 1170-1173), for generating radio frequency communication signals for each of said multiple segments of call traffic for application to said plurality of radio frequency antennas (400, 405, 500, 520, 810-840, 870, 1120) to simultaneously maintain multiple Air-To-Ground Radio Frequency communications links (1130, 1140) with a plurality of cells (911, 912, 914, 1012, 1050, 1105, 1107) or with a plurality of sectors (914, 924, 1013-1016) of a given cell of said plurality of cells of said Air-To-Ground cellular communications network to concurrently exchange call traffic between said plurality of wireless subscriber devices and said plurality of cells (911, 912, 914, 1012, 1050, 1105, 1107) or said plurality of sectors of said given cell (914, 924, 1013-1016) of said Air-To-Ground cellular communications network, characterised by: said at least one interface means including: first polarization means for generating a first portion of said radio frequency communication signals at a first polarization, second polarization means for generating a second portion of said radio frequency communication signals at a second polarization different than said first polarization, connection interface means for applying said first portion of said radio frequency communication signals at said first polarization to a first radio frequency antenna of said plurality of radio frequency antennas, and for applying said second portion of said radio frequency communication signals at said second polarization to said first radio frequency antenna or to a second radio frequency antenna of said plurality of radio frequency antennas. a plurality of radio frequency antennas (400, 405, 500, 520, 810-840, 870, 1120) mounted on the exterior surface of said aircraft (850, 1000, 1110, 1170-1173); data flow control means, responsive to call traffic comprising communications from a plurality of wireless subscriber devices located in said aircraft (850, 1000, 1110, 1170-1173), for dividing said call traffic into multiple segments for distribution among said plurality of radio frequency antennas; and at least one interface means, located in said aircraft (850, 1000, 1110, 1170-1173), for generating radio frequency communication signals for each of said multiple segments of call traffic for application to said plurality of radio frequency antennas (400, 405, 500, 520, 810-840, 870, 1120) to simultaneously maintain multiple Air-To-Ground Radio Frequency communications links (1130, 1140) with a plurality of cells (911, 912, 914, 1012, 1050, 1105, 1107) or with a plurality of sectors (914, 924, 1013-1016) of a given cell of said plurality of cells of said Air-To-Ground cellular communications network to concurrently exchange call traffic between said plurality of wireless subscriber devices and said plurality of cells (911, 912, 914, 1012, 1050, 1105, 1107) or said plurality of sectors of said given cell (914, 924, 1013-1016) of said Air-To-Ground cellular communications network, characterised by: said at least one interface means including: first polarization means for generating a first portion of said radio frequency communication signals at a first polarization, second polarization means for generating a second portion of said radio frequency communication signals at a second polarization different than said first polarization, connection interface means for applying said first portion of said radio frequency communication signals at said first polarization to a first radio frequency antenna of said plurality of radio frequency antennas, and for applying said second portion of said radio frequency communication signals at said second polarization to said first radio frequency antenna or to a second radio frequency antenna of said plurality of radio frequency antennas. first polarization means for generating a first portion of said radio frequency communication signals at a first polarization, second polarization means for generating a second portion of said radio frequency communication signals at a second polarization different than said first polarization, connection interface means for applying said first portion of said radio frequency communication signals at said first polarization to a first radio frequency antenna of said plurality of radio frequency antennas, and for applying said second portion of said radio frequency communication signals at said second polarization to said first radio frequency antenna or to a second radio frequency antenna of said plurality of radio frequency antennas.