The "wings" are already set at maximum width and the "center" changes
to show the selected DSP width. Shift does not move the DSP "peak"
when APF is engaged and the display reflects that fact.
73,
... Joe, W4TV
On 11/5/2010 6:37 PM, The Smiths wrote:
>
> My suggestion to stop this confusion was to have the "wings" set by the WIDTH
> control. Whereas they will move wider or more narrow depending on the main
> Width setting. The center peak should ONLY show the width of the actual
> Audio Peak Filter itself.
>
> When you move the Fc Shift control for the APF it can still travel around
> like it does now. Nothing would change with that. Later on if or when Wayne
> adds the ability to widen the Q of the Peak filter, than when you do so you
> would clearly be able to see the CENTER Peak filter getting larger or smaller
> to indicate the width of the APF.
> This both seems logical to me, and leaves room for upgrades later on.
>
> There's no need for anyone to argue the point whether or not we need the
> Variable Q regarding this post. I'm only suggesting at this time that the
> OUTTER "WINGS" move to show the Width of the filter being used around the
> APF. That's all.
>
>
>
>
>> Date: Fri, 5 Nov 2010 12:45:30 -0400
>> From: li...@subich.com
>> To: pkir...@fuse.net
>> CC: elecraft@mailman.qth.net
>> Subject: Re: [Elecraft] APF and Normalized Filter Passband Display
>>
>>
>>> Recalling NORM2 changes the APF shift back to its normalized setting.
>>> But the "wings" don't change when that happens.
>>
>> The "Wings" don't change as long as APF is on. If you saved NORM2 with
>> APF on, recalling NORM2 turns APF on (and displays the wings).
>>
>> 73,
>>
>> ... Joe, W4TV
>>
>>
>> On 11/5/2010 1:13 PM, Paul Kirley wrote:
>>> Recalling NORM2 changes the APF shift back to its normalized setting.
>>> But the "wings" don't change when that happens.
>>>
>>> 73, Paul W8TM
>>>
>>> At 11:57 AM 11/5/10 -0400, Joe Subich, W4TV wrote:
>>>>
>>>> When APF is engaged, the shift knob no longer shifts the IF/DSP -
>>>> it moves (shifts) the audio peak within the IF passband. Thus,
>>>> the IF/DSP response display does not change. Note - adjusting
>>>> the WIDTH control will change the width of the "center" portion
>>>> of the display as the IF/DSP width changes but the "wings" will
>>>> remain.
>>>
>>>
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