The DP3T18A from PLEXSA MANUFACTURING is a Diplexer with Frequency f1 1 to 3 GHz, Frequency f2 3 to 18 GHz, Insertion loss 1.5 to 1.8 dB, Insertion loss f1 1.8 dB, Insertion loss f2 1.5 dB. Tags: Module with Connectors. More details for DP3T18A can be seen below.