The RMHY3.800-3000Nf180 from Response Microwave Inc is a 90 Degree Hybrid Coupler with Frequency 800 to 3000 MHz, Insertion Loss 1 dB, Isolation 16 dB, Coupling 3 dB. Tags: Module with Connectors. More details for RMHY3.800-3000Nf180 can be seen below.