The M-961-1221-92WS-R from Narda-MITEQ is a 90 Degree Hybrid Coupler with Frequency 960 MHz to 1.22 GHz, Average Power 250 W, Insertion Loss 0.25 dB, Isolation 20 dB, Amplitude Balance ± 0.75 dB. Tags: Module with Connectors. More details for M-961-1221-92WS-R can be seen below.