The AE255-305DB5289 from Anatech Electronics is a Diplexer with Frequency f1 240 to 270 MHz, Frequency f2 290 to 320 MHz, Power 100 W, Insertion loss 1 dB, Insertion loss f1 1 dB. Tags: Module with Connectors, Cavity. More details for AE255-305DB5289 can be seen below.