Methods and systems are disclosed for optimizing the distribution of a broadband wireless signal in a building. The methods and systems include at least one antenna inserted into a building ventilation system and transmitting a wireless broadband training sequence from a transmitter in communication with the antenna. The wireless broadband training sequence will include multiple orthogonal subcarriers. The methods and systems further include detecting the wireless broadband training sequence with a receiver in the building. In selected embodiments, the methods and systems include the steps of analyzing a parameter of the detected wireless broadband training sequence and optimizing a subsequently transmitted wireless broadband signal based at least in part upon the analyzed parameter of the wireless broadband training sequence.