[time-nuts] Home made GPS disciplined atomic clock

[Esa Heikkinen]

> One test you can perform that should give an indication of the location
> of the Allan intercept is to:

Ok, thanks for your clear instructions!

My test periods have been much too short, if the Kalman filter learning 
takes even days! But with these instructions I'lll get better data for 
OCXO vs. LPRO comparison and maybe also the OCXO health.

> Ulrich's Plotter is good for this

Hmm. Is that software available somewhere?
No luck with quick Google tour...

> However to do this successfully your antenna will need a good view of
> the sky.

And that's also one of my problems here. Many trees in the yard. No 
problems with normal "hand GPS" reception but when it comes to these 
timing systems this could be one explanation of these strange timing 
changes at satellite "hops" already noted. However the antenna sees most 
of the sky clearly but not so close to horizon. Will the Northen 
position (Lat 62.33302) also cause inaccuracy to GPS?

-- 
73s!
Esa
OH4KJU