The QBF-2200-2400-30 from Qualwave is a Band Pass Filter with Frequency 2.2 to 2.4 GHz, Bandwidth 200 MHz, Center Frequency 2300 MHz, Insertion Loss 1 dB, Upper Rejection 30 [email protected] to 4.5 GHz. Tags: Module with Connectors. More details for QBF-2200-2400-30 can be seen below.