The WRCGV10-829.5-839.5-854.5-864.5-50-3 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 839.5 to 854.5 MHz, Bandwidth 15 MHz, Insertion Loss 1 to 1.25 dB, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV10-829.5-839.5-854.5-864.5-50-3 can be seen below.