The DP1T18A from PLEXSA MANUFACTURING is a Diplexer with Frequency f1 DC to 1 GHz, Frequency f2 1 to 18 GHz, Insertion loss 1.5 dB, Frequency DC to 1 GHz / 1 to 18 GHz, Isolation 60 dB. Tags: Module with Connectors. More details for DP1T18A can be seen below.