The DSB from WiRan is a Space Qualified RF Diplexer with Frequency f1 2.245 to 2.29 GHz, Frequency f2 2.067 to 2.11 GHz, Power 2.5 W, Insertion loss 0.7 to 1.5 dB, Insertion loss f1 0.7 to 1.2 dB. Tags: Module with Connectors. More details for DSB can be seen below.