The DEI9948-86.5125MHz from Dynamic Engineers is a Band Pass Filter with Frequency 86.505 to 86.52 MHz, Bandwidth 15 kHz, Center Frequency 86.5125 MHz, Insertion Loss 6 dB, Rejection 10 dB@±12.5 kHz of Center Frequency. Tags: Surface Mount, Through Hole, Crystal Filter. More details for DEI9948-86.5125MHz can be seen below.