The RDUP-880-915M-925-960M-3913-3W-S-k from Raditek is a RF Duplexer with Frequency 880 to 915 MHz / 925 to 960 MHz, Band 1 880 to 915 MHz, Band 2 925 to 960 MHz, Power 3 W, Insertion Loss 2.2 dB. Tags: Surface Mount, Ceramic. More details for RDUP-880-915M-925-960M-3913-3W-S-k can be seen below.