The AM170.3CR174 from Anatech Electronics is a Band Pass Filter with Frequency 170.25 to 170.35 MHz, Bandwidth 0.1 KHz, Center Frequency 170.3 MHz, Insertion Loss 5.5 dB, Lower Rejection 60 dBc at Fc +/-150 kHz. Tags: Surface Mount, Crystal Filter. More details for AM170.3CR174 can be seen below.