The LPF490M from Lotus Communication Systems is a Low Pass RF Filter with Frequency DC to 490 MHz, Stopband Frequency 800 MHz to 6 GHz, 3 dB Cutoff Frequency 650 MHz, Insertion Loss 1.2 dB, Rejection 20 to 40 dB. Tags: Module with Connector. More details for LPF490M can be seen below.