The WBCGV8-1621-1638.5-1648.5-1666-80 from Wainwright Instruments is a Band Pass Filter with Frequency 1.6385 to 1.6485 GHz, Bandwidth 10 MHz, Center Frequency 1.6435 GHz, Insertion Loss 2.5 to 3 dB, Rejection 80 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV8-1621-1638.5-1648.5-1666-80 can be seen below.