fallback pps source

[Gary E. Miller]

Yo Folkert!

On Wed, 25 Mar 2026 17:11:04 +0100
Folkert van Heusden via users <users at ntpsec.org> wrote:

> I've got a simple ntp monitoring setup (for hobby). The monitoring 
> computer has a timing gps connected. All works fine. I wonder: is it 
> possible to configure a second pps source that is ONLY used when the 
> primary pps source is not ticking? Thus not selected by how good a 
> source is compared to others, but if it is reachable. That is with
> the idea that the timing gps (pps) always keeps best time but it may
> become unavailable for reasons.

You could make your primary PPS as "prefer".  Then other sources only
get uses when it is down or obviously crazy.

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
	gem at rellim.com  Tel:+1 541 382 8588

	    Veritas liberabit vos. -- Quid est veritas?
    "If you can't measure it, you can't improve it." - Lord Kelvin
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