The WRCGV10-819-829-844-854-50 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 829 to 844 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 WRCGV10-819-829-844-854-50 can be seen below.