An integrated multiband antenna (10, 200, 202, 204) comprising: a cylindrical dielectric radome having a lower end and an upper end, an upper L-band dipole (176, 210) and a lower L-band dipole (178, 212) on a circuit board (50, 52, 201) inside an upper end of a dielectric radome, a UHF dipole in the dielectric radome, a diplexer circuit (144, 224, 226, 410, 420, 304) inside the cylindrical radome configured to combine L-band and UHF signals having a common port and two multiplexed ports (314, 316) associated with the L-band signal and the UHF signal, characterized by, the upper and lower L-band dipoles having a center trace element extending along the length of the circuit board from a lower end to a feed point and electrically coupled to a conductor having a first end and a second end, the lower end of the dielectric radome having an end connector configured to connect to a cable and to a radio chassis, such that when connected to the cable and the radio chassis the cable and the radio chassis form a lower element of the UHF dipole, the upper and lower L-band dipoles being configured to act as an upper element of the UHF dipole, the UHF dipole being a collinear UHF dipole electrically coupled to the conductor, a helical coil of low loss semi-rigid coaxial cable having a first end and a second end and having a shield, the shield and the conductor being electrically coupled to the center trace element with their respective first ends and with the conductor extending through the helical coil configured to form a high impedance inductor at UHF frequencies, the port associated with the UHF signal being connected either directly or via an impedance transformer (22, 143, 300) to the second end of the conductor, and the port associated with the L-band signal being connected to the second end of the helical coil of low loss semi-rigid coaxial cable. a cylindrical dielectric radome having a lower end and an upper end, an upper L-band dipole (176, 210) and a lower L-band dipole (178, 212) on a circuit board (50, 52, 201) inside an upper end of a dielectric radome, a UHF dipole in the dielectric radome, a diplexer circuit (144, 224, 226, 410, 420, 304) inside the cylindrical radome configured to combine L-band and UHF signals having a common port and two multiplexed ports (314, 316) associated with the L-band signal and the UHF signal, characterized by, the upper and lower L-band dipoles having a center trace element extending along the length of the circuit board from a lower end to a feed point and electrically coupled to a conductor having a first end and a second end, the lower end of the dielectric radome having an end connector configured to connect to a cable and to a radio chassis, such that when connected to the cable and the radio chassis the cable and the radio chassis form a lower element of the UHF dipole, the upper and lower L-band dipoles being configured to act as an upper element of the UHF dipole, the UHF dipole being a collinear UHF dipole electrically coupled to the conductor, a helical coil of low loss semi-rigid coaxial cable having a first end and a second end and having a shield, the shield and the conductor being electrically coupled to the center trace element with their respective first ends and with the conductor extending through the helical coil configured to form a high impedance inductor at UHF frequencies, the port associated with the UHF signal being connected either directly or via an impedance transformer (22, 143, 300) to the second end of the conductor, and the port associated with the L-band signal being connected to the second end of the helical coil of low loss semi-rigid coaxial cable.