The CBB891/10MK-S1 from G-WAY Microwave is a RF Duplexer with Frequency 880 to 890 MHz / 891.5 to 894 MHz, Band 1 880 to 890 MHz, Band 2 891.5 to 894 MHz, Power 80 W, Insertion Loss 0.8 to 2.5 dB. Tags: Module with Connectors. More details for CBB891/10MK-S1 can be seen below.