[Elecraft] K3S DSP filter plots

[Lyle Johnson]

The narrowest filter settings (50 Hz and 100 Hz) are actually steeper than
this, and the IIR filters (menu selection) are different, too.

I see all sorts of notes in this thread about S Meter readings.  Much
easier to turn AGC off and use the dB metering function in the radio.  Of
course, I admit to bias...

73,

Lyle KK7P

On Mon, Nov 16, 2015 at 8:38 PM, Dave Hachadorian <k6ll.dave at gmail.com>
wrote:

> Is the reference to the DSP filter system or the roofing filter
>> system?
>>
>
> It is all about the DSP system.  Lyle performed an experimental
> test of a 500 Hz DSP filter inside a 2.8 KHz roofing filter, so
> the DSP filter was the determinant factor.  Here is his email
> again:
> http://marc.info/?l=elecraft&m=120716404727940&w=2
>
> The inference I drew from Lyle's response is:
> DSP 60 dB BW = DSP Setting + 300 Hz.
>
> You can see that DSP "shape factor" varies with the DSP setting,
> so it is easier to remember the DSP+300 formula.
>
> Dave Hachadorian, K6LL
> Yuma, AZ
>
>
>
> .
>
>
>
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