The 7MB/C-522.5/U45-22 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 498.35 to 546.65 MHz, Bandwidth 48.3 MHz (1dB), Center Frequency 522.5 MHz, Insertion Loss 2.8 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 7MB/C-522.5/U45-22 can be seen below.