The BL-6 from MCLI is a 90 Degree Hybrid Coupler with Frequency 80 to 160 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-6 can be seen below.