The QHM-2-17.7G SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 17.3 to 18.1 GHz, Coupling 3 dB, Power 5 W, Amplitude Balance 0.3 dB, Phase Balance ±4 Degrees. Tags: Module with Connectors. More details for QHM-2-17.7G SQ can be seen below.