[TenTec] DDS PTO replacement for old Ten Tec rigs

Steve Hunt steve at karinya.net
Fri Oct 27 05:01:11 EDT 2017


The Arduino analogue inputs provide 1024 level discrimination. 
Translated to +/- 1000Hz that equates to 2Hz steps. I don't know why 
that would be considered not smooth enough?

I sent you the source code by private email yesterday.

Steve G3TXQ

On 26/10/2017 21:49, Curt Benjamin via TenTec wrote:
> Steve, I've run that idea by a few Arduino guys including AD7C himself. They say yes, you can use one of the analog pins and you can "map" the 0-5VDC to say, an offset of +/- 1000 Hz but they say it's not smooth enough to use as RIT. I would like to try but I don't know enough about writing the code to add that function.
> Regarding your PIC controller, I have a PIC ordered so I can copy your circuit. I'd rather use an AVR since I have some and also a programmer. Is there any way you could port your PIC code to an AVR, or would you be willing to release your source code so I can try to do it?
> Curt K8AI

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