The OHP 230-10 from Beijing Ocean Microwave Corporation is a RF High Pass Filter with Frequency 230 MHz to 2 GHz, Insertion Loss 0.29 to 0.31 dB, Rejection 40 @ 120 MHz to 60 @ DC to 89.7 MHz, VSWR 1.23:1, 1.50:1, Return Loss 14 to 20 dB. Tags: Module with Connectors, Chebyshev. More details for OHP 230-10 can be seen below.