The BL-5/NF from MCLI is a 90 Degree Hybrid Coupler with Frequency 60 to 120 MHz, Insertion Loss 0.6 dB, Isolation 20 dB, Amplitude Balance ±0.6 dB, Phase Balance ±3 Degree. Tags: Module with Connectors, Octave Band. More details for BL-5/NF can be seen below.