In a first embodiment of the present invention, a method for communicating main and auxiliary data over a transmission medium is provided, the method comprising: generating a low-frequency output pattern using a high-frequency oscillator, wherein the low-frequency output pattern contains the auxiliary data encoded in a first scheme, wherein the first scheme resembles an output pattern that would be generated by a low-frequency oscillator; sending the low-frequency output pattern through a transmitter to be transmitted over the transmission medium; generating a high-frequency signal using a high-frequency oscillator, wherein the high-frequency signal contains the main data encoded in a second scheme different than the first scheme; and sending the high-frequency signal through the transmitter to be transmitted over the transmission medium.