A method of determining whether a television, TV, band channel is available for use by a TV band device, comprising: tuning to the TV band channel; down-converting a radio frequency signal received on the TV band channel to yield a down-converted signal; performing a predetermined number of Fast Fourier Transforms, FFTs, on the down-converted signal and accumulating an energy of respective bins associated with the respective FFTs; selecting a predetermined number of FFT bins centered at a mandated location of an Advanced Television Systems Committee, ATSC, pilot in the TV Band channel; and analyzing the selected FFT bins to determine if an energy spike is present in any one of the selected FFT bins, wherein If an energy spike is not present in any one of the selected FFT bins, declaring that the TV Band channel available for use by the TV Band device; else further down-converting the radio frequency signal to a baseband signal and analyzing the baseband signal in the time domain to determine if the baseband signal contains a DTV field-sync or a DTV segment-sync; else correlating the baseband signal with a pre determined wave known to be broadcast by wireless microphone sites and defined at baseband by the following modulating sequence {b} = {+M, -M, +M, -M, +M, -M, +M...}, and if there is a good level of correlation, declaring the TV Band channel is used by a wireless microphone; else declaring the TV Band channel available for use by the TV Band device. tuning to the TV band channel; down-converting a radio frequency signal received on the TV band channel to yield a down-converted signal; performing a predetermined number of Fast Fourier Transforms, FFTs, on the down-converted signal and accumulating an energy of respective bins associated with the respective FFTs; selecting a predetermined number of FFT bins centered at a mandated location of an Advanced Television Systems Committee, ATSC, pilot in the TV Band channel; and analyzing the selected FFT bins to determine if an energy spike is present in any one of the selected FFT bins, wherein If an energy spike is not present in any one of the selected FFT bins, declaring that the TV Band channel available for use by the TV Band device; else further down-converting the radio frequency signal to a baseband signal and analyzing the baseband signal in the time domain to determine if the baseband signal contains a DTV field-sync or a DTV segment-sync; else correlating the baseband signal with a pre determined wave known to be broadcast by wireless microphone sites and defined at baseband by the following modulating sequence {b} = {+M, -M, +M, -M, +M, -M, +M...}, and if there is a good level of correlation, declaring the TV Band channel is used by a wireless microphone; else declaring the TV Band channel available for use by the TV Band device. further down-converting the radio frequency signal to a baseband signal and analyzing the baseband signal in the time domain to determine if the baseband signal contains a DTV field-sync or a DTV segment-sync; else correlating the baseband signal with a pre determined wave known to be broadcast by wireless microphone sites and defined at baseband by the following modulating sequence {b} = {+M, -M, +M, -M, +M, -M, +M...}, and if there is a good level of correlation, declaring the TV Band channel is used by a wireless microphone; else declaring the TV Band channel available for use by the TV Band device.