Topband: lift station noise

Jim Brown jim at
Wed Apr 8 08:45:54 PDT 2009

On Tue, 7 Apr 2009 19:59:30 -0700, Lee K7TJR wrote:

>Many of the newer systems use what is called a VFD, variable 
>frequency drive. 

That is the generic name for the motor control system that I 
described in my previous post. So the advice you have received from 
Lee and me is the same. 


Jim K9YC

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