The QHM-2-50 SQ from Crane Aerospace & Electronics is a 90 Degree Hybrid Coupler with Frequency 0.045 to 0.055 GHz, Average Power 1 W, Insertion Loss 0.3 dB, Isolation 25 dB, Coupling -3 dB. Tags: Module with Connectors. More details for QHM-2-50 SQ can be seen below.