The QHF-3800-15000-25 from Qualwave is a RF High Pass Filter with Frequency 3.8 to 15 GHz, Bandwidth 11200 MHz, Insertion Loss 1 dB, Rejection 25 dB, Lower Rejection 25 dB @ DC to 3.4 GHz. Tags: Module with Connectors. More details for QHF-3800-15000-25 can be seen below.