The 7MB/C-300/U100-S3L from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 248.95 to 351.05 MHz, Bandwidth 102.1 MHz (1dB), Center Frequency 300 MHz, Insertion Loss 0.88 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 7MB/C-300/U100-S3L can be seen below.