The CBB918/6MK-S1 from G-WAY Microwave is a RF Duplexer with Frequency 896 to 902 MHz / 935 to 941 MHz, Band 1 896 to 902 MHz, Band 2 935 to 941 MHz, Power 80 W, Insertion Loss 0.9 to 1.5 dB. Tags: Module with Connectors. More details for CBB918/6MK-S1 can be seen below.