The QHM-2-1.8G SQ from Crane Aerospace & Electronics is a 90 Degree Hybrid Coupler with Frequency 1.7 to 1.9 GHz, Average Power 10 W, Insertion Loss 0.3 dB, Isolation 22 dB, Coupling -3 dB. Tags: Module with Connectors. More details for QHM-2-1.8G SQ can be seen below.