A method, comprising: receiving OFDM symbols over a communications channel, wherein a guard interval of length T g is interposed between the OFDM symbols; demodulating the OFDM symbols by discrete Fourier transforming N consecutive samples starting at a specified trigger point; calculating a channel frequency response; adjusting the trigger point for performing the discrete Fourier transform by: 1) calculating samples of a channel impulse response by inverse Fourier transforming the channel frequency response, 2) identifying a maximum peak of the channel impulse response where the sample magnitude is greatest, 3) unfolding the channel impulse response such that a specified portion of the channel impulse response is located after the maximum peak to represent post-echoes with respect to the maximum peak and such that the remaining portion of the channel impulse response is located prior to the maximum peak to represent pre-echoes, 4) adjusting a time origin location of the channel impulse response that represents the trigger point so as to correspond to each of a plurality of sample locations of the channel impulse response within a specific subset of the sample locations of the channel impulse response wherein the specific subset comprises the sample locations within the guard interval length of the maximum peak of the channel impulse response, 5) for each adjusted time origin location, estimating a measure of the intersymbol interference that occurs in the communications channel based upon the magnitudes of samples of the channel impulse response above a specified threshold and their relation to the time origin location of the channel impulse response that represents the trigger point, 6) adjusting the trigger point so as to correspond to the time origin location that results in a minimum estimated measure of intersymbol interference and adjusting the trigger point for demodulation of subsequent OFDM symbols in the same manner. receiving OFDM symbols over a communications channel, wherein a guard interval of length T g is interposed between the OFDM symbols; demodulating the OFDM symbols by discrete Fourier transforming N consecutive samples starting at a specified trigger point; calculating a channel frequency response; adjusting the trigger point for performing the discrete Fourier transform by: 1) calculating samples of a channel impulse response by inverse Fourier transforming the channel frequency response, 2) identifying a maximum peak of the channel impulse response where the sample magnitude is greatest, 3) unfolding the channel impulse response such that a specified portion of the channel impulse response is located after the maximum peak to represent post-echoes with respect to the maximum peak and such that the remaining portion of the channel impulse response is located prior to the maximum peak to represent pre-echoes, 4) adjusting a time origin location of the channel impulse response that represents the trigger point so as to correspond to each of a plurality of sample locations of the channel impulse response within a specific subset of the sample locations of the channel impulse response wherein the specific subset comprises the sample locations within the guard interval length of the maximum peak of the channel impulse response, 5) for each adjusted time origin location, estimating a measure of the intersymbol interference that occurs in the communications channel based upon the magnitudes of samples of the channel impulse response above a specified threshold and their relation to the time origin location of the channel impulse response that represents the trigger point, 6) adjusting the trigger point so as to correspond to the time origin location that results in a minimum estimated measure of intersymbol interference and adjusting the trigger point for demodulation of subsequent OFDM symbols in the same manner.