The LDX-WCDMA-11N from Leader-MW is a RF Duplexer with Frequency 1.92 to 2.17 GHz, Band 1 1.92 to 1.98 GHz, Band 2 2.11 to 2.17 GHz, Insertion Loss 1 dB, Attenuation 80 dB. Tags: Module with Connectors. More details for LDX-WCDMA-11N can be seen below.