The WBCDB5-1606-1641-1646-1681-70 from Wainwright Instruments is a Band Pass Filter with Frequency 1.641 to 1.646 GHz, Bandwidth 5 MHz, Center Frequency 1.6435 GHz, Insertion Loss 1 to 1.75 dB, Rejection 70 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCDB5-1606-1641-1646-1681-70 can be seen below.