[time-nuts] PLL performance?
hmurray at megapathdsl.net
Wed Mar 22 14:24:19 EDT 2017
attila at kinali.ch said:
> There have been a couple of discussions about doing GPSDOs using only analog
> components in the past. People fare more knowledgable than me have commented
> there on what the challenges would be and how to solve them. So I recommend
> to go through the archives and look for those discussions. They might be a
> little bit hidden, though.
I think the main problem is how to build a filter with a time constant of
many seconds. The better your OCXO the longer the time span you can
integrate over. 100s of seconds isn't an unreasonable target.
There may be other problems.
These are my opinions. I hate spam.
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