Re: ublox zed-f9p - need to power cycle?

[Andreas B]

Here are some corresponding dop-plots.
The effect is clearly seen.

Andreas

On Mon, Nov 22, 2021 at 12:46 PM David Taylor <davidtaylor@writeme.com> wrote:
>
> On 22/11/2021 08:51, Andreas B wrote:
> > Hi all,
> >
> > By the end of October I noticed that the number of used satellites dropped 
> > down.
> > This trend of low number of used sats continued until last week (~19.
> > Nov), when I power cycled my raspi.
> >
> > After this reboot the number of sats used was back at the
> > 'normal/pre-late-October' (i.e. good) level.
> > See plots. There is a distinct drop towards the end of october, and
> > this trend continues until the reboot last week.
> >
> > What would be the cause of this?
> > Outdated almanac?
> > Is it wise to do a power cycle every now and then, or is it necessary?
> >
> > Best regards,
> > Andreas
>
> Andreas,
>
> I've had a ZED-F9P running since mid-September connected to U-blox U-Center
> 21.05 and the number of satellites seems the same as ever.  The fact that your
> "seen"plot seems steady suggests to me that the Almanac is OK.
>
> What version of GPSD are you using?  Any other indications on the RPi - memory
> used, CPU used?  disk free?
>
> Cheers,
> David
> --
> SatSignal Software - Quality software for you
> Web: https://www.satsignal.eu
> Email: david-taylor@blueyonder.co.uk
> Twitter: @gm8arv
>

dop-monthly.png
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dop-yearly.png
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