The ZX75BP-1940-S+ from Mini Circuits is a Band Pass Filter with Frequency 1710 to 2170 MHz, Center Frequency 1940 MHz, Insertion Loss 0.7 to 2 dB, Upper Rejection 20 to 31 dB, Lower Rejection 20 to 30 dB. Tags: Module with Connectors, Lumped Component Filter. More details for ZX75BP-1940-S+ can be seen below.