The HL-15/NF from MCLI is a 90 Degree Hybrid Coupler with Frequency 749.5 to 750.5 MHz, Insertion Loss 0.7 dB, Isolation 18 dB, Amplitude Balance ±0.5 dB, Phase Balance ±4 Degree. Tags: Module with Connectors. More details for HL-15/NF can be seen below.