The RCC772-4A1 from MCV Microwave is a Band Stop Filter with Stopband Frequency 770 to 774 MHz, Insertion Loss 1 dB, Rejection 15 dB, Power 40 W, Return Loss 15 dB. Tags: Module with Connectors, Cavity Filter, Notch Filter. More details for RCC772-4A1 can be seen below.