The LF061 from COM-MW is a Low Pass RF Filter with Frequency DC to 1.9 MHz, Stopband Frequency 3.4 to 1000 MHz, Insertion Loss 0.4 to 1 dB, Rejection 20 dB @ 3.4 MHz, 40 dB @ 4.7 to 1000 MHz, Power 2 W. Tags: Module with Connector. More details for LF061 can be seen below.