The DP-1823 from Maury Microwave is a Diplexer with Frequency f1 1.80 to 2.30 GHz, Frequency f2 3.60 to 4.60 GHz, Power 100 W, Insertion loss 0.4 to 1.3 dB, Insertion loss f1 0.4 to 0.6 dB. Tags: Module with Connectors. More details for DP-1823 can be seen below.