The HL-2/NF from MCLI is a 90 Degree Hybrid Coupler with Frequency 19.5 to 20.5 MHz, Insertion Loss 0.5 dB, Isolation 25 dB, Amplitude Balance ±0.2 dB, Phase Balance ±2 Degree. Tags: Module with Connectors. More details for HL-2/NF can be seen below.