The WLJE4-60-80-40-8000-1 from Wainwright Instruments is a Low Pass RF Filter with Frequency DC to 60 / 80 MHz, Stopband Frequency Chosen Fco x 1.08 to 8 GHz, 3 dB Cutoff Frequency Choice of 60 to 80 MHz, Insertion Loss 0.7 to 1.7 dB, Rejection 40 dB. Tags: Module with Connector, Lumped Component Filter, Chebyshev Filter. More details for WLJE4-60-80-40-8000-1 can be seen below.