You should also be able to provide a startup message for RTKLIB to send to the receiver. I use it with str2str and if I recall rtkrcv / RKNAVI support it as well. For ublox it looks like:
!UBX CFG-RATE 1000 1 1 # set update period in milliseconds !UBX CFG-MSG 2 17 0 0 0 1 # RXM RAW - required for rtklib !UBX CFG-MSG 2 16 0 0 0 1 # RXM SFRB - recommended for rtklib !UBX CFG-MSG 240 0 0 0 0 1 # NMEA GGA !UBX CFG-MSG 240 1 0 0 0 0 # NMEA GLL !UBX CFG-MSG 240 2 0 0 0 0 # NMEA GSA !UBX CFG-MSG 240 3 0 0 0 0 # NMEA GSV !UBX CFG-MSG 240 4 0 0 0 1 # NMEA RMC !UBX CFG-MSG 240 5 0 0 0 0 # NMEA VTG !UBX CFG-MSG 240 8 0 0 0 0 # NMEA ZDA The first two numbers of each CFG-MSG line define the message, and the following 4 0s and 1s turn that message on and off for different interfaces (usb, serial, etc) -Josh On Wed, Apr 30, 2014 at 1:46 PM, Danny Miller <[email protected]> wrote: > Be sure to increase your serial port baud rate. > > There's MUCH longer packets, and more of them, than data than NMEA fixes. > In my experience if there's too much data it just overruns the buffer and > data gets lost. The link is full of errors and the fix disappears. > > It may appear fine early on after power-up. But as more satellites get > added, the data gets longer and longer, and you may oddly lose the fix as > it becomes "good". > > You can also disable data you don't need to keep the link bandwidth down. > > The graphical interface of U-Center allows you to turn on/off msg types > for each port. It'll be saved if you have a battery on the GPS, which you > should to maintain the RTC. > > Danny > > > On 4/30/2014 12:16 PM, Scott Harrison wrote: > >> Leor, >> >> You have to go into U-Center and enter the following custom message: >> >> to enable RXM-RAW >> >> b5 62 09 01 10 00 c8 16 00 00 00 00 00 00 97 69 21 00 00 00 02 10 2b 22 >> >> to enable RXM-SFRB >> >> b5 62 09 01 10 00 0c 19 00 00 00 00 00 00 83 69 21 00 00 00 02 11 5f f0 >> >> This will turn on the raw data you need, but it is stored in RAM so >> you will need to resend the codes every time you power up. >> >> Also, set your type to PPP and then you should start to see sub-meter >> accuracy with RTKLib. >> >> see http://wiki.openstreetmap.org/wiki/RTKLIB >> >> >> Scott >> >> On Wed, Apr 30, 2014 at 7:56 AM, vbenso <[email protected]> wrote: >> >>> Leor, >>> >>> It's been a long time since I don't touch my GPS hardware, so I could be >>> wrong. That being said. >>> As far as I remember, rtklib needs more information than just >>> UBX-RXM-RAW in >>> order to obtain an accurate fix. The neo6m should send another message >>> (maybe RXM-SFRB?) that I wasn't able to get from the receiver. >>> I could get ordinary gps precision in static and single modes of rtklib. >>> Good luck, and in case of any development let me know. >>> >>> >>> Victor A. P. Benso >>> Sementes Benso >>> Major Vieira - SC >>> (47) 9922-9599 >>> (47) 3655-1192 >>> >>> >>> On Mon, Apr 28, 2014 at 4:49 PM, leor [via Open Source GPS-related >>> discussion and support] <[hidden email]> wrote: >>> >>>> I got 2 CN-06 (neo6m) recievers to output into RTKlib both over serial >>>> COM. Problem is that I have not been able to get a fix and always get a >>>> single status. Also whenever I choose static it seems to change >>>> everytime I >>>> start it. Using dgps and kinematic gives me an accuraccy of around 50m. >>>> I >>>> have tested this indoors and managed to get RAW data. Any idea how it >>>> would >>>> perform outdoors? I am trying to collect data to creat GCP for use in >>>> ortho >>>> correction >>>> [IMG]http://i.imgur.com/kj3Z5IV.jpg[/IMG] >>>> >>>> >>>> Great info you guys have. I got it to work but I am not sure what kind >>>> of >>>> accuracy I will be getting >>>> >>>> ________________________________ >>>> If you reply to this email, your message will be added to the discussion >>>> below: >>>> >>>> http://open-source-gps-related-discussion-and- >>>> support.1099874.n2.nabble.com/Raw-Data-from-NEO-6M- >>>> tp7572786p7572854.html >>>> To unsubscribe from Raw Data from NEO-6M, click here. >>>> NAML >>>> >>> >>> >>> ________________________________ >>> View this message in context: Re: Raw Data from NEO-6M >>> Sent from the Open Source GPS-related discussion and support mailing list >>> archive at Nabble.com. >>> >>> _______________________________________________ >>> This message is sent to you from [email protected] 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 >>> >> _______________________________________________ >> This message is sent to you from [email protected] 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 >> >> > _______________________________________________ > This message is sent to you from [email protected] 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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