NMEA Direction Bug

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NMEA Direction Bug

Ahanktcd .
I have been using RTKLIB for about a year now and it is working on my autonomous lawn mower.  It is wonderful.

The direction output in the $GPRMC sentence always reads 342.64 instead of showing the direction as usual GPSes do as the subtraction of previous and current coordinates.  It is not very stable but it does give a nice visualization showing direction.  Can this be fixed?

Thanks,
ahanktcd


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Re: NMEA Direction Bug

Scott Ellis

What GPS hardware are you using?

Scott


On 5/12/2016 2:03 PM, Ahanktcd . wrote:
I have been using RTKLIB for about a year now and it is working on my autonomous lawn mower.  It is wonderful.

The direction output in the $GPRMC sentence always reads 342.64 instead of showing the direction as usual GPSes do as the subtraction of previous and current coordinates.  It is not very stable but it does give a nice visualization showing direction.  Can this be fixed?

Thanks,
ahanktcd



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Scott Ellis

Principal
Novatex Research - Excellence in Electronic Research & Development
41 Yule Road, Merewether, Newcastle, NSW 2291, Australia
Phone: 0412 988408

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Re: NMEA Direction Bug

Ahanktcd .
Scott,

Thanks for writing.  I am using the log to file option in RTKlib and checking the course made good in $GPRMC.  The problem came up when I was using APRSIS/32 and the direction arrow would only point NW.

Paul



On Wed, Dec 7, 2016 at 8:40 PM, Scott Ellis <[hidden email]> wrote:

What GPS hardware are you using?

Scott


On 5/12/2016 2:03 PM, Ahanktcd . wrote:
I have been using RTKLIB for about a year now and it is working on my autonomous lawn mower.  It is wonderful.

The direction output in the $GPRMC sentence always reads 342.64 instead of showing the direction as usual GPSes do as the subtraction of previous and current coordinates.  It is not very stable but it does give a nice visualization showing direction.  Can this be fixed?

Thanks,
ahanktcd



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For more information, check http://wiki.osgeo.org/wiki/FOSS-GPS

--
Scott Ellis

Principal
Novatex Research - Excellence in Electronic Research & Development
41 Yule Road, Merewether, Newcastle, NSW 2291, Australia
Phone: 0412 988408

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