The QHM-4R-10G SQ from Crane Aerospace & Electronics is a 90 Degree Hybrid Coupler with Frequency 2000 to 18000 MHz, Average Power 10 W, Insertion Loss 1.5 dB, Isolation 17 dB, Coupling -3 dB. Tags: Module with Connectors. More details for QHM-4R-10G SQ can be seen below.