The AD452-462D218 from Anatech Electronics is a Diplexer with Frequency f1 450 to 454.8 MHz, Frequency f2 460 to 464.8 MHz, Insertion loss 1.5 dB, Insertion loss f1 1.5 dB, Insertion loss f2 1.5 dB. Tags: Module with Connectors, Cavity. More details for AD452-462D218 can be seen below.