The WHC0810A from Wavelex is a 90 Degree Hybrid Coupler with Frequency 820 to 960 MHz, Average Power 10 W, Insertion Loss 0.2 to 0.5 dB, Isolation 30 dB, Amplitude Balance ± 0.2 to 0.5 dB. Tags: Module with Connectors. More details for WHC0810A can be seen below.