Nielsen says it was able to conclude the enhanced CBET provides results similar to Voltair during its live-testing in Washington DC and Baltimore. Nielsen's Beth Webb said 7 stations that had a Voltair were used for the comparison testing. Nielsen first looked at those 7 stations using the legacy CBET plus a Voltair unit and compared that with results using the enhanced CBET only, on those same 7 stations. The stations picked the time periods to be tested and the test were done over several weeks. According to Nielsen, when you adjust for listening conditions, the results are just about exactly the same.