The OHP 80-10 from Beijing Ocean Microwave Corporation is a RF High Pass Filter with Frequency 80 MHz to 1.25 GHz, Insertion Loss 1.1 to 2.57 dB, Rejection 40 @ 72 MHz to 60 @ DC to 68.8 MHz, VSWR 1.23:1, 1.50:1, Return Loss 14 to 20 dB. Tags: Module with Connectors, Chebyshev. More details for OHP 80-10 can be seen below.