The SYBD-18-142HP+ from Mini Circuits is a Bi-Directional Coupler with Frequency 960 MHz to 1.4 GHz, Coupling 17.13 to 20.24 dB, Average Power 50 W, Power 0 to 50 W, Insertion Loss 0.13 to 0.19 dB. Tags: Surface Mount. More details for SYBD-18-142HP+ can be seen below.