The QBF-1980-2010-80 from Qualwave is a Band Pass Filter with Frequency 1.98 to 2.01 GHz, Bandwidth 30 MHz, Center Frequency 1995 MHz, Insertion Loss 1.5 dB, Upper Rejection 80 [email protected] to 2.2 GHz. Tags: Module with Connectors. More details for QBF-1980-2010-80 can be seen below.