The RDUP-880-905M-925-950M-4014-3W-S-j from Raditek is a RF Duplexer with Frequency 880 to 905 MHz / 925 to 950 MHz, Band 1 880 to 905 MHz, Band 2 925 to 950 MHz, Power 3 W, Insertion Loss 2.1 to 2.3 dB. Tags: Surface Mount, Ceramic. More details for RDUP-880-905M-925-950M-4014-3W-S-j can be seen below.