The 6MB/C-66.5/T9-18 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 61.1 to 71.9 MHz, Bandwidth 10.8 MHz (3dB), Center Frequency 66.5 MHz, Insertion Loss 3.4 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 6MB/C-66.5/T9-18 can be seen below.