[Elecraft] APF For K3: progress report

[Wayne Burdick]

For the same reason that they want to use SHIFT: because sometimes  
stations call you off-frequency.

Wayne

On Oct 25, 2010, at 6:50 PM, Wes Stewart wrote:

> Wayne,
>
> Understood, but why would anyone want to have a filter peaked at  
> other than the nominal sidetone pitch?  I realize people are asking  
> for it, but it makes zero sense to me.
>
> Wes
>
> --- On Mon, 10/25/10, Wayne Burdick <n6kr at elecraft.com> wrote:
>
>> Wes,
>>
>> The TX and VFO frequencies won't behave any differently
>> with APF turned on, if that's what you're asking. They'll
>> still be corrected for your sidetone pitch, as always.
>>
>> APF will behave like a tunable narrow filter superimposed
>> on the normal passband. Its initial frequency would match
>> the sidetone pitch, but you'll be able to move it around
>> using the shift control.
>>
>> We're still playing with it.
>>
>> Wayne
>>
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