This paper presents a method for protecting wireless signals through the creation and exploitation of time-varying spectral redundancy. Redundant symbols are multiplexed in both time and frequency in dynamic patterns within multicarrier symbols which creates the spectral redundancy. A novel Frequency Shift (FRESH) filter is developed to exploit this timevarying spectral redundancy. This filter structure allows the creation of multicarrier waveforms that are robust, reliable and resistant to frequency selective fading. The applications range from next generation commercial broadband to mission-critical communications. Use of the proposed method improves the bit error rate by an order of magnitude when compared to traditional Generalized Frequency Division Multiplexing (GFDM) transceivers under the simulated channels.