The OHP 75-6 from Beijing Ocean Microwave Corporation is a RF High Pass Filter with Frequency 75 MHz to 1 GHz, Insertion Loss 0.6 to 0.88 dB, Rejection 40 @ 59.3 MHz to 60 @ DC to 52.9 MHz, VSWR 1.23:1, 1.50:1, Return Loss 14 to 20 dB. Tags: Module with Connectors, Chebyshev. More details for OHP 75-6 can be seen below.