The 8C9-836-X25N11 from Reactel is a Band Pass Filter with Frequency 824 to 849 MHz, Bandwidth 25 MHz, Center Frequency 836 MHz, Insertion Loss 1.0 dB @ Passband, Rejection 60 dB @ 869 - 894 MHz. Tags: Module with Connectors. More details for 8C9-836-X25N11 can be seen below.