The RSF-184.320-5000-3838-TR from Raltron is a Band Pass Filter with Frequency 181.82 to 186.82 MHz, Bandwidth 5000 kHz, Center Frequency 184.32 MHz, Insertion Loss 8 dB, Rejection 30 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-184.320-5000-3838-TR can be seen below.