The PE8DP1004 from Pasternack Enterprises Inc is a Diplexer with Frequency f1 5 to 1450 MHz, Frequency f2 1.65 to 2.3 GHz, Attenuation 30 to 50 dB, Attenuation f1 40 to 50 dB @ 1.65 to 2300 GHz, Attenuation f2 30 to 40 dB @ 5 to 1400 MHz. Tags: Module with Connectors. More details for PE8DP1004 can be seen below.