After that,the PIC of DDS was broken suddenly.
I changed that and I can see the spurious@7040KHz is almost gone!
Any very small spurious can be seen now.
So I think the spurious cause by the DDS-985X's charactristics and
also the PIC helps that.
New PIC(16F84A) is good working.
--- In email@example.com, "qrper723" <qrper72@y...> wrote:
> Hi all,
> A happy new year!
> Thanks so many suggestions about the Spurious of V5 using DDS VFO.
> Almost I understand but a part of them is confusing for me.
> Anyway I've built my version of V5 as follows and am listening
> the BBC with HiFi audio! Nice job...
> Hidehiko ja9mat