The WRCGV8-688-698-728-738-30 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 698 to 728 MHz, Bandwidth 30 MHz, Insertion Loss 0.75 to 1 dB, Rejection 30 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV8-688-698-728-738-30 can be seen below.