The RSF-246.000-100-3838-TR from Raltron is a Band Pass Filter with Frequency 245.95 to 246.05 MHz, Bandwidth 100 kHz, Center Frequency 246 MHz, Insertion Loss 5 dB, Rejection 18 to 40 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-246.000-100-3838-TR can be seen below.