The C1-A60D-10 from RD Microwaves is a Directional Coupler with Frequency 400 MHz to 13 GHz, Coupling 8 to 30 dB, Coupling Variation ±1 dB, Frequency Sensitivity 0.6 to 0.8, Directivity 15 to 20 dB. Tags: Module with Connectors. More details for C1-A60D-10 can be seen below.