The FMDP1003 from Fairview Microwave is a Diplexer with Frequency f1 5 MHz to 1.45 GHz, Frequency f2 1.55 to 2.3 GHz, Attenuation 25 to 30 dB, Attenuation f1 25 to 30 dB, Attenuation f2 25 to 30 dB. Tags: Module with Connectors. More details for FMDP1003 can be seen below.