[time-nuts] Trueposition Antenna Location

[Bob kb8tq]

Hi

Looking at the data, I’m guessing the slower sample rate was done last. If so, 
you may not be letting the GPSDO’s “warm up” long enough. Most designs 
take days (if not weeks) to get to their ultimate stability. 

Bob

> On Dec 2, 2018, at 11:16 AM, Mark Goldberg <marklgoldberg at gmail.com> wrote:
> 
> I broke down and drilled a couple holes in the wall and moved the antennas
> for both GPSDOs outside with a better view of the sky, but still somewhat
> shielded by the house and a metal RV cover. The number of sats is way up
> and the TruePosition is in normal mode most of the time. The ADEV is not
> improved and actually measured worse. I took data for twice as long at two
> sample rates, 0.6816 sec and 5.453 sec. The ADEV from the slower sample
> rates is lower, possibly due to the measurement method, but they all are in
> the same order of magnitude. I've named the Heather screen captures for the
> inside and outside locations and shown one combined Timelab capture.
> 
> Regards,
> 
> Mark
> <TruePos_Outside_Ant_Heather.png><TruePos_Inside_Outside_Compare_Ant_Allan.png><TruePos_Inside_Ant_Heather.png>_______________________________________________
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