In message <ce93652a-1da6-48e3-9883-d7616ac24...@rtty.us>, Bob Camp writes:

Bob,

There's one thing makes me scratch my head here:  Why do you keep
arguing like the timeconstant cannot be changed dynamically ?

I use a very aggresive timeconstants initially, to quickly get the
phase offset under control, and then I ramp up the timeconstant in
order to reduce phase noise of the GPS, until I hit something which
looks like the "Allan-intercept" (as Dave Mills calls it).

It' won't take long time for us to agree that the timeconstant
is a tradeoff between phase and frequency error, but just because
it is called a "timeconstant" doesn't mean we cannot change it.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
p...@freebsd.org         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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