The 260/915 MHz Diplexer from K&L Microwave is a Diplexer with Frequency f1 0.02 to 0.5 GHz, Frequency f2 0.53 to 1.3 GHz, Attenuation 40 dB, Attenuation f1 40 dB, Attenuation f2 40 dB. Tags: Module with Connectors, Cavity. More details for 260/915 MHz Diplexer can be seen below.