The HDF266.7M from Shoulder Electronics is a Band Pass Filter with Frequency 266.55 to 266.85 MHz, Bandwidth 0.3 to 0.7 MHz, Center Frequency 266.7 MHz, Insertion Loss 3.5 dB, Power 0.001 W. Tags: Surface Mount, RF SAW Filter. More details for HDF266.7M can be seen below.