The DEI9916-21.4865MHz from Dynamic Engineers is a Band Pass Filter with Frequency 21.48275 to 21.49025 MHz, Bandwidth 7.5 kHz, Center Frequency 21.4865 MHz, Insertion Loss 3.5 dB, Rejection 45 dB@±8.75 kHz of Center Frequency. Tags: Surface Mount, Through Hole, Crystal Filter. More details for DEI9916-21.4865MHz can be seen below.