The ECS-D479.5B from ECS Inc. International is a Band Pass Filter with Frequency 478 to 481 MHz, Bandwidth 3 MHz, Center Frequency 479.5 MHz, Insertion Loss 23 dB, Operating_Temperature -25 to 85 Degree C. Tags: Through Hole, RF SAW Filter. More details for ECS-D479.5B can be seen below.