Discussions

Mystery Ublox Hardware

Posted by W. D. Michael on May 15, 2011 at 11:02am

Does anyone have any information on this board?　 I bought a couple to take the LEA-4T off - it's a long story but I need the phase measurements and the UBLOX 4 series is fine - but it occurs to me that I may be taking it off this board just to put it on a board with similar features.　 The problem is, I have no information on this board.

So, if you know anything about this board, I'd appreciate hearing what you think.

-wdm

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gps, lea-4t, pcb, ublox

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Replies

angel November 12, 2013 at 5:57am

hello,

I'm using the Lea-4T Ublox in UCenter and will not let me put it to 57600 baud UBX. In UBX only works to 9600 baud. Why?

thanks
Trenton Astley Isla October 23, 2013 at 3:10pm

Hi, can anyone post some complete detailed information about using ublox receivers in RTK mode? pretty please? there isnt any well documented application i can find

thank you very much
jonr August 22, 2013 at 7:45am

I got RTKLIB in PPP static mode to work with this board but didn't get a basestation/rover to work (help!). You can use ucenter to enable and log RXM-RAW and RXM-SFRB packets. Then convert to RINEX .obs format, wait till the next day and download ephemerides .sp3 info from http://geodesy.noaa.gov/UFCORS/ and then get all the RTKPOST options just right.

http://wiki.openstreetmap.org/wiki/RTKLIB is an overview.

In theory, one can use a pair of these boards + a radio link to get a few cm accuracy (relative to the basestation) in real-time. The more readibly available NEO-6M is also supposed to work,
Napoleon August 17, 2013 at 4:24am

@johr

you should install the u center to configure the receiver and you will test it from there. You may have data without fix. Check the antenna if you have active or passive one.
jonr August 14, 2013 at 11:05am

I just received one of these boards and am trying to make it work. I connected it to a USB to serial converter but I'm not seeing any output. What baud rate should I use? Will it output something when power is applied or does it need to get a fix first? Maybe I need to send it a command? I assume that I swap tx/rx and rx/tx between the LEA-4T board and the usb serial board. Anything else I can do to track down the issue? Thanks.
Napoleon May 12, 2013 at 7:53am

i have the board now and it works pretty good. If anyone made the mod with the supercapacitor i d love to have at least a photo or a description of the mod or even the capacitor i should replace...

Thank you
Andrew McKinnon March 1, 2013 at 3:33am

Anthony.

Do you still have a supply of these boards or similar? The whole works :-)

Please contact me if you can help me out.

Regards

Andrew
Napoleon February 23, 2013 at 9:50am

i ordered that board as well from china but havent received it yet. i guess that with an ftdi cable and the drivers from the ublox site i ll be ok to connect them to u centre on windows or i missed somethind?
Developer

Michael Oborne September 22, 2012 at 1:05am

just a fyi for others searching this

antenna - SMB male connector
2 4 6 8
1 3 5 7
bottom

1 antenna vcc
2 vcc
3 tx
4
5 rx
6 timepulse
7
8 gnd
jordan.erenrich February 17, 2012 at 6:33am

HI, I just ordered a board that looks exactly like this. Do you know what type of antenna connector it has? Thanks