The QBF-2526.5-2579.5-40 from Qualwave is a Band Pass Filter with Frequency 2.5265 to 2.5795 GHz, Bandwidth 53 MHz, Center Frequency 2553 MHz, Insertion Loss 1 dB, Upper Rejection 40 [email protected] GHz. Tags: Module with Connectors. More details for QBF-2526.5-2579.5-40 can be seen below.