The WRCTF12+9-830.5-832.5-842.5-844.5-80-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 832.5 to 842.5 MHz, Bandwidth 10 MHz, Insertion Loss 1.5 to 3 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCTF12+9-830.5-832.5-842.5-844.5-80-1 can be seen below.