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This is done by varying the amplitude of the carrier wave in accordance with the frequency of the audio signal.

The researchers couple their resonating circuit to a second, higher frequency circuit, so that, much as in AM radio, any dark matter signal would make the amplitude of the higher frequency carrier wave warble.

The FCC’s RFR exposure limits regulate the intensity of exposure, taking into account the frequency of the carrier waves, but ignore the signaling properties of the RFR.

In this case a continuous carrier wave might look completely uninteresting, but in fact be wildly gesticulating in its polarization properties over time.

When the aerial is earthed, part of the carrier wave will be absorbed.