The 5MB/E-2500/U1000-S4G from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 1955.7 to 3044.3 MHz, Bandwidth 1088.6 MHz (1dB), Center Frequency 2500 MHz, Insertion Loss 0.65 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 5MB/E-2500/U1000-S4G can be seen below.