The 6MB/C-1258/T50-S5 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 1226.95 to 1289.05 MHz, Bandwidth 62.1 MHz (3dB), Center Frequency 1258 MHz, Insertion Loss 3.9 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 6MB/C-1258/T50-S5 can be seen below.