think atmosphere nailed it. Most don't know about the weighting equation and only see the product or end result.
if a person takes the time to measure each multiple orders on the primary freq, and then finds a way to minimize those, and ignore the product (i.e. answer) then you are getting somewhere.
If you read some of the papers written by Norm Crowhurst back in the 50s, you can see some did not care for the approach.
but the FTC adopted that means as teh way to measure amps, and back in the day, all the mfgrs jumped on board, so the die was cast.
J
if a person takes the time to measure each multiple orders on the primary freq, and then finds a way to minimize those, and ignore the product (i.e. answer) then you are getting somewhere.
If you read some of the papers written by Norm Crowhurst back in the 50s, you can see some did not care for the approach.
but the FTC adopted that means as teh way to measure amps, and back in the day, all the mfgrs jumped on board, so the die was cast.
J