The QSDC-1290-1310-70 from Qualwave is a Directional Coupler with Frequency 1290 to 1310 MHz, Coupling 6±1 to 10±1 dB, Directivity 20 dB, Average Power 70 W, Insertion Loss 0.8 to 1.8 dB. Tags: Module with Connectors. More details for QSDC-1290-1310-70 can be seen below.