The AE1942-2132DB5421 from Anatech Electronics is a RF Duplexer with Frequency 1.935 to 1.95 GHz / 2.125 to 2.14 GHz, Band 1 1.935 to 1.95 GHz, Band 2 2.125 to 2.14 GHz, Power 25 W, Insertion Loss 0.7 dB. Tags: Module with Connectors. More details for AE1942-2132DB5421 can be seen below.