The M-22-42-91KWN-R from Narda-MITEQ is a 90 Degree Hybrid Coupler with Frequency 200 to 400 MHz, Average Power 1000 W, Insertion Loss 0.25 dB, Isolation 18 dB, Amplitude Balance ± 0.8 dB. Tags: Module with Connectors. More details for M-22-42-91KWN-R can be seen below.