23754Re: Bye Bye Birdies- Spurs
- Aug 1, 2008[Sorry for the Off-Topic]
I got a version of PowerSDR for SDR-1000 specifically for this type of
experimentation. If a SDR1K user wants to replace AD9854 with a Si570
by leaving untouched all other PowerSDR functions and the LPT mux the
Joe is the first that has this one.
If you feel like experimenting
--- In firstname.lastname@example.org, k5nwa <k5nwa@...> wrote:
> At 02:27 PM 8/1/2008, you wrote:
> >By replacing the DDS (AD9854)in my Flex clone with the SI570
> >gone are the annoying DDS spurs. Tony's new divider clock
> >circuit was used as the interface.
> > This was made possible by the modified Power SDR code by
> >Christos SV1EIA with smooth tuning. This code now also stores both
> >transmit and receive image rejection data for each band separately
> >another big improvement. If you plan on using SSB or AM modes take a
> >look at the modified Power SDR by Christos.
> >Joe wa9cgz
> Getting rid of spurs, priceless!
> Good going, my SDR-1000 just ran out of warranty, that looks like a
> worthwhile mod.specially on 10M and 6M the spurs drive you crazy.
> www.softrockradio.org www.qrpradio.com
> "Blessed are the cracked, for they shall let in the light."
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