[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
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.
Andreas
On Tue, Aug 4, 2020 at 6:53 PM Gary E. Miller <gem@rellim.com> wrote:
>
> Yo Andreas!
>
> On Tue, 4 Aug 2020 12:04:20 +0200
> Andreas B <panden@gmail.com> 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.
>
> RGDS
> GARY
> ---------------------------------------------------------------------------
> Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
> gem@rellim.com Tel:+1 541 382 8588
>
> Veritas liberabit vos. -- Quid est veritas?
> "If you can't measure it, you can't improve it." - Lord Kelvin