[hpsdr] QSD architecture and image suppression

[Ahti Aintila]

On 21/02/2008, Phil Harman <phil at pharman.org> wrote:
> ***** High Performance Software Defined Radio Discussion List *****

> On Penelope the image is > 80dB down, the limit of my measuring equipment.
> On Mercury as long as the ADC is not overloaded then I can't see any image.
> In which case it would be >110dB down.

Very good, Phil!
Now we need a power amplifier with IM and spurious emissions down more
than 80 dB. A pretty tough job for EER amplifiers?

Ahti OH2RZ

> HPSDR Discussion List
> To post msg: hpsdr at hpsdr.org
> Subscription help: http://lists.hpsdr.org/listinfo.cgi/hpsdr-hpsdr.org
> HPSDR web page: http://hpsdr.org
> Archives: http://lists.hpsdr.org/pipermail/hpsdr-hpsdr.org/
>

 1203606113.0