The WRCTF12+9-830-832-862-864-40-4 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 832 to 862 MHz, Bandwidth 30 MHz, Insertion Loss 1.5 to 3 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCTF12+9-830-832-862-864-40-4 can be seen below.