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3D RoboticsPermalink Reply by Chris Anderson on December 29, 2010 at 4:29pm

They're both very good, but we've been using the MediaTek more of late because it's smaller and very robust.

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DeveloperPermalink Reply by Mark Colwell on December 30, 2010 at 7:27am

Ublox costs twice as much, but can give better results, but if I were starting over now I would go with MediaTek, I have several GPS units uBlox is the best over all.

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Permalink Reply by Jason Dowdy on December 31, 2010 at 1:20pm

Mark, could you possibly give further details about why the uBlox is the best over the MediaTek (or other GPS units? Does it provide a more consistent satellite lock? Faster sat lock? I too am looking to purchase a GPS module soon and I don't want to buy the uBlox for nearly 3 times the cost of the MediaTek unless there is good reason to do so. Thanks for any advice and personal experience you can provide.

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DeveloperPermalink Reply by Mark Colwell on January 1, 2011 at 7:54pm

I like the uBlox documentation, and uCenter configuration software. With true 4 Hz updates. I don't have experience with MediaTek software so it may be good too.. I agree 1/3 cost is hard to beat. 

My uBlox gets a 3D/DGPS lock indoors after aiding data update & 20 minutes to acquire WAAS data from L Band SV-138 , it will hot start afterwards in a few seconds. 

 

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Permalink Reply by Jay Shafer on January 2, 2011 at 10:40am

I am trying to decide between the Ublox and the MediaTek for my ArduPilot Mega project.  I have seen posts where the MediatTek has lost satellite lock in high bank situations.  I also noticed that the MediaTek appears to
be 10hz while the Ublox is only 4hz.  The MediaTek3329 is only $38 while the uBlox5 is $86.  From those of you who have flown both with the ArduPilot, which GPS would you buy and why?

 

BTW.  I love this site and can’t wait to get started.  Thanks for making available the hardware and information to actually build our own UAV.

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