[hpsdr] PennyWhistle MOSFET's

[Riho B., ES7AAZ]

Thank you for your suggestions, Sir. Yes, in investigation I use no magic
things like TX EQ, COMP, CFC, ALC gain or similar. Only the pure SSB signal
path.

73, Riho ES7AAZ

Kontakt Helmut Oeller (<dc6ny at gmx.de>) kirjutas kuupäeval N, 11. november
2021 kell 15:17:

> No Sir, I never watched this behavior. As far I recall PowerSDR mRX PS
> uses since 2014 Warren's WSP as DSP core. Thetis is organized in the
> same way.
>
> Apply a 2 tone signal for IM evaluation. As an orientation: At
> Penelope's jumper socket JP2 and DAC fullscale the IM products should be
> approx. 50 dB down the 2-tone signal. After the U6 amp IMD should be
> around 40 dB. Hence you'll have enough headroom for a well-designed
> power amp even without PS.
>
> Before you start investigation check and verify all your settings in
> PowerSDR/Thetis.
>
> 73, Helmut, DC6NY
>
> .
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/attachments/20211111/13e4e024/attachment.html>