The QHM-2-3.8G SQ from Crane Aerospace & Electronics is a 90 Degree Hybrid Coupler with Frequency 3.3 to 4.3 GHz, Average Power 5 W, Insertion Loss 0.4 dB, Isolation 23 dB, Coupling -3 dB. Tags: Module with Connectors. More details for QHM-2-3.8G SQ can be seen below.