The 6MB/E-55/U11-C3 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 49.24 to 60.76 MHz, Bandwidth 11.52 MHz (1dB), Center Frequency 55 MHz, Insertion Loss 1.45 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 6MB/E-55/U11-C3 can be seen below.