Yes, using a sound pressure meter I can see a peak around 570 and one down
around 330 or so . These are only about 3 db variations however.
Setting the speaker on the desktop makes a *HUGE difference* in
loudness...Maybe 10 db or so. The reflection from the surface helps greatly
and this is true of most speakers. Setting it on a shelf totally wrecks
everything.

On Fri, Nov 6, 2015 at 7:24 PM, <[email protected]> wrote:

> Sounds good and like maybe a peak on CW pitch around 550Hz?    Have you
> varied the sidetone pitch at a fixed  level to check response?
>
> Mike  AC5P
>
>
>
> On Friday, November 6, 2015 3:27 PM, Steve Ellington <[email protected]>
> wrote:
>
>
> I just did a little video on the SP3.
>
> https://www.youtube.com/watch?v=I2EmW46zgDw
>
> Steve N4LQ
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