The HC9 from TTE Filters is a RF High Pass Filter with Frequency 100 MHz to 7 GHz(Custom), Insertion Loss 0.5 dB, Power 20 mW, Rejection -50 dBc, Lower Rejection -50 dBc. Tags: Surface Mount, PCB Mount, Module with Connectors, Chebyshev. More details for HC9 can be seen below.