The WRCT8-769.5-770.3-770.7-771.5-50 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 770.3 to 770.7 MHz, Bandwidth 0.4 MHz, Insertion Loss 0.6 to 2.5 dB, Rejection 50 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-769.5-770.3-770.7-771.5-50 can be seen below.