The BFCV-5270+ from Mini Circuits is a Band Pass Filter with Frequency 4040 to 6500 MHz, Center Frequency 5270 MHz, Insertion Loss 1.5 to 4 dB, Upper Rejection 15 to 20 dB, Lower Rejection 14 to 17 dB. Tags: Ceramic, Ceramic Filter. More details for BFCV-5270+ can be seen below.