The LPF320M from Lotus Communication Systems is a Low Pass RF Filter with Frequency DC to 320 MHz, Stopband Frequency 560 MHz to 5.3 GHz, 3 dB Cutoff Frequency 460 MHz, Insertion Loss 1 dB, Rejection 20 to 40 dB. Tags: Module with Connector. More details for LPF320M can be seen below.