The DEI9971-70.00MHz from Dynamic Engineers is a Band Pass Filter with Frequency 69.9475 to 70.0525 MHz, Bandwidth 105 kHz, Center Frequency 70 MHz, Insertion Loss 4 dB, Rejection 27 dB@±200 kHz of Center Frequency. Tags: Surface Mount, Through Hole, Crystal Filter. More details for DEI9971-70.00MHz can be seen below.