The term extremely high frequency is identified in base64 scheme by the sequence ZXh0cmVtZWx5IGhpZ2ggZnJlcXVlbmN5, while the MD5 signature is equal to 62ef42db883f7143fc1ac458da1b7658. The ASCII encoding of extremely high frequency in hexadecimal notation is 65787472656d656c792068696768206672657175656e6379.