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Re: Satellites show up multiple times

From: Andreas B
Subject: Re: Satellites show up multiple times
Date: Wed, 5 Aug 2020 09:38:37 +0200

Hi Gary,

Thank you for your answer.


On Tue, Aug 4, 2020 at 6:53 PM Gary E. Miller <> wrote:
> Yo Andreas!
> On Tue, 4 Aug 2020 12:04:20 +0200
> Andreas B <> wrote:
> > I'm using a ublox ZED-F9P with default settings, which works great.
> But, as you see, still a long way to go.
> > Some satellites have two entries in the seen/used list in cgps.
> That is a new "feature".  There are no duplicates, each is a separate
> satellite and frequency (L1, L2, E5, etc.) combination.
> Yes, the presentation needs a lot of work, patches welcome. cgps ran
> out of screen space for new items a while ago.  Almost 200 signals can
> be tracked by an F9P, how to display all that?  Some new concepts are
> needed.

Yes, it's alot. Is there an easy way of making cgps show more than 21
sats? I would like to see a complete list (e.g. cgps style) of the
sats seen/used. I peeked into the code and tried to fiddle with it to
simply increase the frame height, allowing more vertical space, but I
was unable to make any changes that worked.

> If you look at the JSON the data is presented more unambiguously.
> > The SNR difference between the two entries of
> > PRN 7 is 11, which really seems to be alot. Why this big difference?
> Each is a separate freqeuncy.  Each is being tracked by a different
> channel in the receiver.  Depending on your antenna, the satellite, the
> atmosphere, multipath, and more, it is normal that each has a different
> SNR.
> ---------------------------------------------------------------------------
> Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
>  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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