The PE8DP1001 from Pasternack Enterprises Inc is a Diplexer with Frequency f1 5 to 390 MHz, Frequency f2 650 to 1000 MHz, Attenuation 50 to 55 dB, Attenuation f1 50 to 55 dB @ 650 to 1000 MHz, Attenuation f2 50 to 55 dB @ 5 to 390 Mhz. Tags: Module with Connectors. More details for PE8DP1001 can be seen below.