The M-13-23-92WS-R from Narda-MITEQ is a 90 Degree Hybrid Coupler with Frequency 1 to 2 GHz, Average Power 250 W, Insertion Loss 0.35 dB, Isolation 18 dB, Amplitude Balance ± 0.75 dB. Tags: Module with Connectors. More details for M-13-23-92WS-R can be seen below.