The 5MB/C-122/H30-18 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 104.3 to 139.7 MHz, Bandwidth 35.4 MHz (0.5dB), Center Frequency 122 MHz, Insertion Loss 1.39 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 5MB/C-122/H30-18 can be seen below.