The WRCT8-759-763-773-777-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 763 to 773 MHz, Insertion Loss 0.6 to 1 dB, Rejection 40 dB, VSWR 1.43:1, Center Frequency 768 MHz. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-759-763-773-777-40 can be seen below.