The WBCTB10-2042.5-2050-2070-2077.5-40-1 from Wainwright Instruments is a Band Pass Filter with Frequency 2.05 to 2.07 GHz, Bandwidth 20 MHz, Center Frequency 2.06 GHz, Insertion Loss 2.5 to 3.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB10-2042.5-2050-2070-2077.5-40-1 can be seen below.