The RFDC1350G30 from RF-Lambda is a Directional Coupler with Frequency 1.25 to 1.35 GHz, Coupling 29.6 to 30.4 dB, Frequency Sensitivity ±0.15 to 0.35 dB, Directivity 20 to 25 dB, Average Power 200 W. Tags: Module with Connectors. More details for RFDC1350G30 can be seen below.