The 7MB/E-261/U34-S10W from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 242.5 to 279.5 MHz, Bandwidth 37 MHz (1dB), Center Frequency 261 MHz, Upper Rejection 40 dB, Lower Rejection 40 dB. Tags: Lumped Component Filter. More details for 7MB/E-261/U34-S10W can be seen below.