The DEI9828-100.7983MHz from Dynamic Engineers is a Band Pass Filter with Frequency 100.7733 to 100.8233 MHz, Bandwidth 50 kHz, Center Frequency 100.7983 MHz, Insertion Loss 4 dB, Rejection 20 dB@±30 kHz of Center Frequency. Tags: Surface Mount, Through Hole, Crystal Filter. More details for DEI9828-100.7983MHz can be seen below.