The RSF-164.175-125-7050-TR from Raltron is a Band Pass Filter with Frequency 164.1125 to 164.2375 MHz, Bandwidth 125 kHz, Center Frequency 164.175 MHz, Insertion Loss 3.6 dB, Rejection 45 to 50 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-164.175-125-7050-TR can be seen below.