The RDUP-890-915M-935-960M-3013-3W-S-k from Raditek is a RF Duplexer with Frequency 890 to 915 MHz / 935 to 960 MHz, Band 1 890 to 915 MHz, Band 2 935 to 960 MHz, Insertion Loss 3.0 to 3.2 dB, Attenuation 50 dB. Tags: Surface Mount, Ceramic. More details for RDUP-890-915M-935-960M-3013-3W-S-k can be seen below.