The basic antenna provides two separate radiating structures located within one aerodynamic housing. A vertically polarized blade antenna provides omnidirectional azimuth coverage from the horizon to 30 degrees elevation, which is accessed through the J8 connector.
An independent turnstile antenna provides right-hand circular polarized (RHCP) coverage from 30 degrees elevation through zenith with the use of an external 0- to 90-degree hybrid coupler, connected to the J9 and J10 input ports. Input power options are cost effectively selected by using one of the three hybrids (i.e., the H26-1, H29-1 or H25-1) offered as accessories. A separate 50-ohm load termination is also required, which must be capable of sustaining a power level equivalent to 25 percent of the input power.
