The HD34204 from HD Communications Corp is a Diplexer with Frequency f1 1.524 to 1.56 GHz, Frequency f2 1625 to 1662 MHz, Power 20 W (CW), Attenuation 70 to 90 dBc (Rejection), Attenuation f1 70 to 90 dBc (Rejection). Tags: Module with Connectors. More details for HD34204 can be seen below.