The QSDC-1-100-1 from Qualwave is a Directional Coupler with Frequency 1 to 100 MHz, Coupling 10±0.5 to 20±0.8 dB, Amplitude Flatness 0.15 dB, Directivity 20 dB, Average Power 1 W. Tags: Module with Connectors. More details for QSDC-1-100-1 can be seen below.