The OHP 70-10 from Beijing Ocean Microwave Corporation is a RF High Pass Filter with Frequency 70 MHz to 1 GHz, Insertion Loss 1.21 to 2.85 dB, Rejection 40 @ 63 MHz to 60 @ DC to 60.2 MHz, VSWR 1.23:1, 1.50:1, Return Loss 14 to 20 dB. Tags: Module with Connectors, Chebyshev. More details for OHP 70-10 can be seen below.