The WRCTF12+9-818-824-849-855-80-4 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 824 to 849 MHz, Insertion Loss 1.5 to 2.5 dB, Rejection 80 dB, VSWR 1.50:1, Center Frequency 836.5 MHz. Tags: Module with Connectors, Cavity Filter. More details for WRCTF12+9-818-824-849-855-80-4 can be seen below.