The WVX-1880M1960-60C810 from Wevercomm is a RF Duplexer with Frequency 1.85 to 1.91 GHz / 1.93 to 1.99 GHz, Band 1 1.85 to 1.91 GHz, Band 2 1.93 to 1.99 GHz, Power 3 W, Insertion Loss 3.2 dB. Tags: Ceramic, Surface Mount. More details for WVX-1880M1960-60C810 can be seen below.