The term ultrahigh frequency is identified in base64 scheme by the sequence dWx0cmFoaWdoIGZyZXF1ZW5jeQ==, while the MD5 signature is equal to 166ee18e3c90bc0b232c9cbc0353ac07. The ASCII encoding of ultrahigh frequency in hexadecimal notation is 756c74726168696768206672657175656e6379.