The HL-17/NF from MCLI is a 90 Degree Hybrid Coupler with Frequency 1.49 to 1.5 GHz, Insertion Loss 1.2 dB, Isolation 17 dB, Amplitude Balance ±0.7 dB, Phase Balance ±6 Degree. Tags: Module with Connectors. More details for HL-17/NF can be seen below.