The FMA-341N-1 from Metropole Products Inc. is a Diplexer with Frequency f1 30 to 520 MHz, Frequency f2 806 to 1200 MHz, Power 250 to 500 W, Attenuation 75 to 90 dB, Attenuation f1 75 dB. Tags: Module with Connectors, Cavity. More details for FMA-341N-1 can be seen below.