The Q177 Series are available in phase-matched sets and are factory tested for all unit-to-unit tracking requirements on a 100% basis. In addition to phase and amplitude repeatability, the Q177 Series provide low VSWR and axial ratio across the operating band.
The Q177 Series are available in a standard 3-hole mount (model Q177-3) or pinned to a precision mounting-bracket (model Q177-2) for direct installation in a customer supplied interferometer housing. The latter configuration provides improved unit-to-unit phase tracking for high accuracy interferometer applications.