[Elecraft] Filter alignment once again

[Ron D'Eau Claire]

Bill, AA4LR wrote:

The shape of the USB filter ought to be  
exactly backwards of LSB, but yours looks the same, heavy on the low  
frequencies and tapering off toward the highs. I wonder if your noise  
generator has a bias toward low frequencies, or if there's some  
frequency-limiting component in your measurement. Do you have the  
KDSP2 installed? Did you disable it when you were taking your  
measurements?

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Taking audio from the "phones" jack can produce a rolloff much like that as
well, caused by the electrolytics in the circuit. The auxiliary speaker jack
is a better choice. 

Ron AC7AC