The FMA-290 from Metropole Products Inc. is a Diplexer with Frequency f1 150 to 400 MHz / 950 to 1120 MHz, Frequency f2 1215 to 1239 MHz / 1563 to 1587 MHz, Power 50 to 100 W, Peak Power 1 kW, Insertion loss 0.5 to 0.7 dB. Tags: Module with Connectors, Cavity. More details for FMA-290 can be seen below.