The QHC9-1000-4200-K4 from Qualwave is a 90 Degree Hybrid Coupler with Frequency 1000 to 4200 MHz, Average Power 400 W, Insertion Loss 0.5 dB, Isolation 15 dB, Coupling 3 dB. Tags: Module with Connectors. More details for QHC9-1000-4200-K4 can be seen below.