The OH-T-20180-10 from A-Info is a Directional Coupler with Frequency 2.0 to 18.0 GHz, Coupling 10 dB, Coupling Variation ±0.50 dB, Directivity 15 dB, Insertion Loss 1.3 dB. Tags: Module with Connectors. More details for OH-T-20180-10 can be seen below.