There was generally good agreement with the measurement of ambient conditions for the three seperate tests. Note that the ambient for the Ampair and Air 403 tests was higher than that for the BWC 850. The reason for this is that the meter during these tests was near one of the guy cables of the Bergey and the meter recorded the “singing” of the cable in the wind. It’s interesting that the meter could pick this up. There were no guy cables near the meter during the tests on the Bergey and thus the meter didn’t record any “singing” of the guys and the ambient measurements were lower.