The DSA from WiRan is a Space Qualified RF Diplexer with Frequency f1 2.2 to 2.245 GHz, Frequency f2 2.025 to 2.068 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 DSA can be seen below.