[TenTec] Basic question (especially NR operation)

[Joe Giacobello]

OK, Grant.  While I think I understood the concept of "aggressiveness,"  
I was off track regarding whether it changed its state automatically 
with changing S/N or one had to help it manually, as I described.  
Frankly, when I first read their description, I was surprised that it 
would work that way and I did post a comment to the list questioning it, 
but no one replied.

Thanks for your input.

73, Joe

Grant Youngman wrote:

>>manually selecting a very narrow DSP passband filter."  Based on their 
>>description, I concluded that for the NR to work properly the desired 
>>signal had to be present when NR is invoked, and if one tuned to a 
>>different signal that one would have turn off the NR and then turn it on 
>>again 
>>    
>>
>
>The NR value adjusts the speed of adaptation,  not the amount of 
>NR.  A lower value provides a relatively slow adaptation speed, so 
>that once the filter is built it will tend to persist and will change only 
>slowly.  A higher value of NR will cause faster adaptation to 
>changing/new/different signal v noise conditions.
>
>Once adaptation is complete, the amount of noise reduction will be 
>the same for any setting of the NR control, and won't change (all 
>other things being equal) if you adjust the NR value.
>
>The "right" setting, like so many things on the Orion, depends on 
>conditions, what you're doing, etc.  I typically stick it on about 3 and 
>leave it there, but it's worth experimenting with ...
>
>Grant/NQ5T
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