The 4MB/C-1135/U250-14 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 1000.75 to 1269.25 MHz, Bandwidth 268.5 MHz (1dB), Center Frequency 1135 MHz, Insertion Loss 0.91 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 4MB/C-1135/U250-14 can be seen below.