The TTPD-7644 from Telewave is a RF Duplexer with Frequency 763 to 869 MHz, Power 650 W, Insertion Loss 0.5 to 0.35 dB, Attenuation 80 to 90 dB, Operating temperature -30 to 70 Degree C. Tags: Module with Connectors. More details for TTPD-7644 can be seen below.