The WRCT5-769.7-770.4-770.6-771.3-30 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 770.4 to 770.6 MHz, Bandwidth 0.2 MHz, Insertion Loss 0.5 to 1.75 dB, Rejection 30 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT5-769.7-770.4-770.6-771.3-30 can be seen below.