Topband: Tuned cw speaker

[Tree]

> My take: for a SDR, if no signal was converted during the A to D stage,
there will be no signal to "dig out" during the D to A stage

I find this very interesting.  I can't say I totally understand the issue
well enough to have an educated opinion.  If it is indeed true that going
into the digital domain eliminates the effectiveness of a "CW Speaker" - I
think that is fascinating and makes me wonder what else is being missed by
the human ear.

Tree N6TR

On Sat, Feb 7, 2026 at 8:17 AM Ron Spencer via Topband <
topband at contesting.com> wrote:

> I think Dave and Adrian's conclusion is correct. My take: for a SDR, if no
> signal was converted during the A to D stage, there will be no signal to
> "dig out" during the D to A stage. No amount of signal processing or noise
> reduction will help since there is nothing there. Nothing is buried in the
> noise floor.
>
>
>
> Ron  N4XD
>
>
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