The RDUP-890-915M-935-960M-4320-3W-S-R-ce-j from Raditek is a RF Duplexer with Frequency 880 to 915 MHz / 935 to 960 MHz, Band 1 880 to 915 MHz, Band 2 935 to 960 MHz, Power 3 W, Insertion Loss 3.0 dB. Tags: Surface Mount, Ceramic. More details for RDUP-890-915M-935-960M-4320-3W-S-R-ce-j can be seen below.