The AM124.8CR172 from Anatech Electronics is a Band Pass Filter with Frequency 124.76 to 124.83 MHz, Bandwidth 0.07 KHz, Center Frequency 124.8 MHz, Insertion Loss 5.0 dB, Upper Rejection 60 dB at Fc +/-100 kHz. Tags: Surface Mount, Crystal Filter. More details for AM124.8CR172 can be seen below.