The CBB852/11SK-S1 from G-WAY Microwave is a RF Duplexer with Frequency 824 to 835 MHz / 869 to 880 MHz, Band 1 824 to 835 MHz, Band 2 869 to 880 MHz, Power 60 W, Insertion Loss 1 to 1.1 dB. Tags: Module with Connectors. More details for CBB852/11SK-S1 can be seen below.