The TDC-80180-30S from Talent Microwave Inc is a Dual Directional Coupler with Coupling 30 dB, Coupling Variation ±1.2 dB, Frequency 8 to 18 GHz, Average Power 30 W, Insertion Loss 1.2 dB. Tags: Module with Connectors. More details for TDC-80180-30S can be seen below.