The ZABP-587-S+ from Mini Circuits is a Band Pass Filter with Frequency 470 to 705 MHz, Center Frequency 587 MHz, Insertion Loss 1.8 to 2.5 dB, Upper Rejection 20 to 25 dB, Lower Rejection 25 to 55 dB. Tags: Module with Connectors, Lumped Component Filter. More details for ZABP-587-S+ can be seen below.