I don't think you should run these on the 480 as they are in the AF chain and 
will always degrade the information you need to decode the signal.

It's not what you hear, it's what your software can decode. Let the software do 
the work...

Simon Brown, HB9DRV
  ----- Original Message ----- 
  From: John Bradley 

  I regularly use the rig's filters to enhance the signal quality at my end. 
one thing I haven't got my head around yet are the noise blankers and noise 
reduction devices, which seem to have an adverse effect on the quality of some 
signals. Being technically challenged I don't understand that...........

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