The QBF-29500-30500-45 from Qualwave is a Band Pass Filter with Frequency 29.5 to 30 GHz, Bandwidth 1000 MHz, Center Frequency 3000 MHz, Insertion Loss 1.7 dB, Upper Rejection 45 to 70 dB. Tags: Module with Connectors. More details for QBF-29500-30500-45 can be seen below.