The RDUP-824-849M-869-894M-4313-3W-S-k from Raditek is a RF Duplexer with Frequency 824 to 849 MHz / 869 to 894 MHz, Band 1 824 to 849 MHz, Band 2 869 to 894 MHz, Power 3 W, Insertion Loss 2.5 dB. Tags: Surface Mount, Ceramic. More details for RDUP-824-849M-869-894M-4313-3W-S-k can be seen below.