The QHM-4R-11G SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 4.2 to 18 GHz, Coupling 3 dB, Power 2 W, Amplitude Balance 1.6 dB, Phase Balance ±8 Degrees. Tags: Module with Connectors. More details for QHM-4R-11G SQ can be seen below.