The OH-T-20200-20 from A-Info is a Directional Coupler with Frequency 2.0 to 20.0 GHz, Coupling 20 dB, Coupling Variation ±0.30 dB, Directivity 15 dB, Insertion Loss 0.85 dB. Tags: Module with Connectors. More details for OH-T-20200-20 can be seen below.