1. A data handling device for improving transmission of data in a wireless network, comprising: a spectral shaping module for selectively spectrally shaping amplitude levels for a spectrally defined data stream across a frequency spectrum having low and high frequencies associated therewith; a compressor module electrically preceding said spectral shaping module for compressing said data stream; and an expander module electrically succeeding said spectral shaping module for electrically reversing the compression performed by said compressor module so that, in operation, said data stream is sequentially processed through said compressor, said spectral shaping and said expander modules in preparation for said data stream to be electrically coupled to a wireless transceiver of said wireless network.