The OLP140-3 from Beijing Ocean Microwave Corporation is a Low Pass RF Filter with Frequency DC to 140 MHz, Insertion Loss 0.22 to 0.25 dB, Rejection 40 dB @ 280 MHz, 60 dB @ 378 to 1000 MHz, VSWR 1.23:1, 1.50:1, Return Loss 14 to 20 dB. Tags: Module with Connector, Chebyshev Filter. More details for OLP140-3 can be seen below.