[time-nuts] I've designed a GPSDO, but how "good" is it?

[Attila Kinali]

On Sun, 16 Aug 2015 12:39:19 -0700
Nick Sayer via time-nuts <time-nuts at febo.com> wrote:

> I have considered in the past buying a used rubidium standard off eBay,
> but have hesitated because I don’t know how much life there is left in
> the tube, and I just have to take it on faith that it’s stable and accurate.
> I have somewhat more faith in the GPS PPS, but clearly that has limits.


Don't worry about that.
The cheap FE-5680 that have been around for a while have a couple of
years left at least. And even if they go out, you can revive them
with a hot air gun.

			Attila Kinali

-- 
I must not become metastable. 
Metastability is the mind-killer.
Metastability is the little-death that brings total obliteration.
I will face my metastability. 
I will permit it to pass over me and through me. 
And when it has gone past I will turn the inner eye to see its path. 
Where the metastability has gone there will be nothing. Only I will remain.