The DEI9740-10.70MHz from Dynamic Engineers is a Band Pass Filter with Frequency 9.35 to 12.05 MHz, Bandwidth 400 KHz, 2700 KHz, Center Frequency 10.7 MHz, Insertion Loss 6 dB, Rejection 60 dB @ - 650 KHz, 3400 KHz. Tags: Crystal Filter, Suspended Substrate Filter. More details for DEI9740-10.70MHz can be seen below.