[time-nuts] Newbie questions

Bob Camp kb8tq at n1k.org
Thu Jan 28 12:09:41 UTC 2016


> On Jan 27, 2016, at 7:56 PM, timenut at metachaos.net wrote:
> Bob, et. al.,
> Thanks for the advice and information. That has helped a lot in closing some
> holes and gives me a lot to consider. I am continuing to research and learn,
> this is not a short term project as in building it this week or month. I need
> to learn and work up to the full project. I will probably start small with
> pieces and gather what equipment I can. Like many of my projects, this one
> will probably have multiple sub-projects. Especially if I manage to snag test
> equipment that needs repair.
> Regrettably, the 260 was ordered from China, there were none from the US when
> I ordered. I did know that it would be a crap shoot, but for $26 it was
> something I could get now. I might even be lucky!
> I am planning on including sawtooth correction in hardware. But, I have a good
> bit to learn for that. It appears to be fairly simple given your processor
> reads the sawtooth correction from the GPS receiver and sets up a programmable
> delay for each cycle.

It’s far more common to sum the correction into your control loop. 


> I have a dozen pieces floating in my head, I am certain I will be back for
> more advice.
> Thanks again.
> Mike
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