The WBLB-T-BP-500-300-L from A-Info is a Band Pass Filter with Frequency 350 to 650 MHz, Insertion Loss 1 dB, Rejection 65 to 90 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WBLB-T-BP-500-300-L can be seen below.