The RMHY3.1-12.4Sf from Response Microwave Inc is a 90 Degree Hybrid Coupler with Frequency 1000 to 12400 MHz, Average Power 50 W, Peak Power 3 kW, Insertion Loss 1.3 dB, Isolation 18 dB. Tags: Module with Connectors. More details for RMHY3.1-12.4Sf can be seen below.