The RBPF-246+ from Mini Circuits is a Band Pass Filter with Frequency 236 to 256 MHz, Center Frequency 256 MHz, Insertion Loss 2.7 to 4 dB, Power 0.15 W, VSWR 1.30:1, 1.67:1. Tags: Surface Mount, Lumped Component Filter. More details for RBPF-246+ can be seen below.