The QBF-2025-2085-40 from Qualwave is a Band Pass Filter with Frequency 2.025 to 2.085 GHz, Bandwidth 60 MHz, Center Frequency 2055 MHz, Insertion Loss 1 dB, Upper Rejection 40 [email protected] to 2.3 GHz. Tags: Module with Connectors. More details for QBF-2025-2085-40 can be seen below.