[time-nuts] wifi with time sync

Chuck Harris cfharris at erols.com
Sat Jan 14 01:15:57 EST 2017

If there is a modern microwave oven with a switching power supply,
or a cordless telephone around, you might want to look there.

The old linear supply ovens were easy to deal with because they
presented a strong CW signal that drifted around as voltage, load,
and temperature changed.  The switcher ovens simply splatter the
whole ISM band with strong microwave noise.

-Chuck Harris

Bob Camp wrote:
> Hi
> It just so happens that I’m trying to track down an issue with my WiFi as
> I type this. My *guess* is that there is a dropout going on. The only easy
> way I can see to get a round trip time with a high data rate is to run ping. 
> It’s the only tool that gives me something that is fast enough to spot issues.
> Is it perfect? certainly not. Is it an upper bound that is also likely the limit
> for things like NTP - in my experience it sure is. That of course assumes 
> the gizmo that sends the pings back does so quickly and consistently. I’ve
> spent enough time testing that side of it that I’m quite sure it’s true in this case.
> Bob

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