[TenTec] Orion Noise Reduction Ability

[Gary Tuck]

Believe the issue was that installing the 500 or 250hz filters also  
enabled an additional amp which degraded performance.  That is why  
the InRad 600hz filter was installed in the 1000hz slot. I know that  
I had a spare 250hz filter and tried it in the appropriate slot.  I  
couldn't find a situation where it improved performance over the  
600hz filter in the 1khz slot.

Gary W7TEA

On Mar 21, 2007, at 4:25 PM, K4IA at aol.com wrote:

> I remember a thread a long time ago that recommended not using the  
> narrow
> roofing filters unless it was absolutely necessary.  Something  
> about the  narrow
> filters degrading some performance.  Don't know if that was an  
> issue  related
> to the TT 500hz filter slot in the Orion1 and if it might be fixed  
> by  using
> the 600hz Inrad in the 1khz slot.
>
> Anyone remember what that was all about?
>
> k4ia
> Craig  "Buck"
> Fredericksburg, Virginia USA
>
>
>
>
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