The WRCGV10-688-698-728-738-50 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 698 to 728 MHz, Bandwidth 30 MHz, Insertion Loss 1 to 1.5 dB, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV10-688-698-728-738-50 can be seen below.