[FOSS-GPS] Ublox 6M connecting issue

Bipin Adaki bipin.adaki at gmail.com
Mon May 23 04:49:24 PDT 2016 

Mic,
Thank you for the advise. From this I understand my 6M module is not
providing the raw data. I'll configure it to output the raw data and let
 you know the  progress.

On Mon, May 23, 2016 at 3:44 PM, <foss-gps-request at lists.osgeo.org> wrote:

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>    1. (no subject) (Bipin Adaki)
>    2. Re: (no subject) (Michele Bavaro)
>    3. age of differential: rtkpost vs rtknavi (Michele Bavaro)
>    4. Using SBAS for RTK with RTKLIB (Michele Bavaro)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 23 May 2016 10:38:39 +0530
> From: Bipin Adaki <bipin.adaki at gmail.com>
> To: foss-gps at lists.osgeo.org
> Subject: [FOSS-GPS] (no subject)
> Message-ID:
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>
> I am currently working on a asset tracking project, in which i need
> submeter level accuracy. for the same i am using the Ublox7P(Rover over
> serial port for testing) and 6M (Base station over serial port). When I
> start RTKNAVI with settings shown in the link, RTK is not able to display
> the satellite SNR for the 6M module, for same settings I am able to see the
> SNR for 7P module and the module is working fine with U-center. I tried
> replacing the rover and base station still for 6M it does not show the SNR.
> But in streams it shows data is coming continuously.
>
> https://docs.emlid.com/navio/RTKLIB/rtklib-rover-setup/
>
> Please help me.
>
> Regards
> Bipin Aadaki
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> Message: 2
> Date: Mon, 23 May 2016 08:33:28 +0000 (UTC)
> From: Michele Bavaro <mic.bavaro at yahoo.co.uk>
> To: Open Source GPS-related discussion and support
>         <foss-gps at lists.osgeo.org>
> Subject: Re: [FOSS-GPS] (no subject)
> Message-ID:
>         <1336071357.1397014.1463992408904.JavaMail.yahoo at mail.yahoo.com>
> Content-Type: text/plain; charset="utf-8"
>
> One good move would be to start using latest generation modules supported
> by uBlox, so that people don't have to suggest solutions based on hacks of
> previous models of ublox receivers.The 6M can be instructed to output RAW,
> just google a bit and you will find how, but better would be to actually
> focus on the "T" or "F" family.
>
>     On Monday, 23 May 2016, 7:08, Bipin Adaki <bipin.adaki at gmail.com>
> wrote:
>
>
>  I am currently working on a asset tracking project, in which i need
> submeter level accuracy. for the same i am using the Ublox7P(Rover over
> serial port for testing) and 6M (Base station over serial port). When I
> start RTKNAVI with settings shown in the link, RTK is not able to display
> the satellite SNR for the 6M module, for same settings I am able to see the
> SNR for 7P module and the module is working fine with U-center. I tried
> replacing the rover and base station still for 6M it does not show the SNR.
> But in streams it shows data is coming continuously.
> https://docs.emlid.com/navio/RTKLIB/rtklib-rover-setup/
>
> Please help me.
> RegardsBipin Aadaki
> _______________________________________________
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> ------------------------------
>
> Message: 3
> Date: Mon, 23 May 2016 09:08:32 +0000 (UTC)
> From: Michele Bavaro <mic.bavaro at yahoo.co.uk>
> To: Open Source GPS-related discussion and support
>         <foss-gps at lists.osgeo.org>
> Subject: [FOSS-GPS] age of differential: rtkpost vs rtknavi
> Message-ID:
>         <296994116.1472429.1463994512466.JavaMail.yahoo at mail.yahoo.com>
> Content-Type: text/plain; charset="utf-8"
>
> I am using two M8Ts and doing GPS L1 kinematic.The base and rover binary
> streams come to rtkrcv via TCP client socket connection.Stream are also
> logged for post-processing.
> RTKLIB seems to handle age of differential well in post-processing
> (rnx2rtkp or rtkpost).However when a large gap (e.g. 20 minutes) of base
> observations happens as the base obs TCP client stream goes quiet, rtkrcv
> or rtknavi exhibit a large outlier when the obs actually come back. It
> takes a long time to get back on the correct position after such
> outlier.This seems to be related to some EKF parameters not being correctly
> re-initialised between a socket going idle and then live again after a
> relatively long time.Does anybody know where in the code this could be
> fixed? I am tracing it down but if someone already experienced the problem
> it would help me a lot.
> Bests,Michele
>
>
>     On Monday, 23 May 2016, 7:08, Bipin Adaki <bipin.adaki at gmail.com>
> wrote:
>
>
>  I am currently working on a asset tracking project, in which i need
> submeter level accuracy. for the same i am using the Ublox7P(Rover over
> serial port for testing) and 6M (Base station over serial port). When I
> start RTKNAVI with settings shown in the link, RTK is not able to display
> the satellite SNR for the 6M module, for same settings I am able to see the
> SNR for 7P module and the module is working fine with U-center. I tried
> replacing the rover and base station still for 6M it does not show the SNR.
> But in streams it shows data is coming continuously.
> https://docs.emlid.com/navio/RTKLIB/rtklib-rover-setup/
>
> Please help me.
> RegardsBipin Aadaki
> _______________________________________________
> This message is sent to you from FOSS-GPS at lists.osgeo.org mailing list.
> Visit http://lists.osgeo.org/mailman/listinfo/foss-gps to manage your
> subscription
> For more information, check http://wiki.osgeo.org/wiki/FOSS-GPS
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> ------------------------------
>
> Message: 4
> Date: Mon, 23 May 2016 10:11:38 +0000 (UTC)
> From: Michele Bavaro <mic.bavaro at yahoo.co.uk>
> To: Open Source GPS-related discussion and support
>         <foss-gps at lists.osgeo.org>
> Subject: [FOSS-GPS] Using SBAS for RTK with RTKLIB
> Message-ID:
>         <691292514.1582459.1463998298747.JavaMail.yahoo at mail.yahoo.com>
> Content-Type: text/plain; charset="utf-8"
>
> At the present time, in Europe SBAS messages of type 9 that we receive
> carry URA at 15 (do not use for ranging).Thus, RTKLIB discards all the
> ranges to SBAS.This is the correct behaviour for standalone positioning,
> but it should be possible to include those measurements into the
> differential AR engine as errors in orbits and clocks will cancel out in
> the double differences.When trying to force URA at 0 (2.4m error) and
> health at 0 (health OK) in the navigation message,RTKLIB does not generate
> coherent ranges between base and rover (even when they are in
> zero-baseline).Is this a clock bias problem or a time interpolation problem?
>
>
>     On Monday, 23 May 2016, 7:08, Bipin Adaki <bipin.adaki at gmail.com>
> wrote:
>
>
>  I am currently working on a asset tracking project, in which i need
> submeter level accuracy. for the same i am using the Ublox7P(Rover over
> serial port for testing) and 6M (Base station over serial port). When I
> start RTKNAVI with settings shown in the link, RTK is not able to display
> the satellite SNR for the 6M module, for same settings I am able to see the
> SNR for 7P module and the module is working fine with U-center. I tried
> replacing the rover and base station still for 6M it does not show the SNR.
> But in streams it shows data is coming continuously.
> https://docs.emlid.com/navio/RTKLIB/rtklib-rover-setup/
>
> Please help me.
> RegardsBipin Aadaki
> _______________________________________________
> This message is sent to you from FOSS-GPS at lists.osgeo.org mailing list.
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