Comment by Cliff Dearden on April 27, 2012 at 1:57pm

Great stuff Martin, by the way did you notice my comment about the DJI's GPS system not working in

the southern hemisphere. At the moment I own a very expensive NAZA!

Comment by Ellison Chan on April 27, 2012 at 1:59pm

Don't you have to turn the GPS antenna upside down? ;-)

Comment by Cliff Dearden on April 27, 2012 at 2:04pm

Oh were it that easy!

Distributor Comment by Martint BuildYourOwnDrone.co.uk on April 27, 2012 at 11:52pm

Hey Cliff, yes I did see it and was looking into the number of posts around the web on the issues in Oz on a range of GPS based items, from sat nav, smart phones, Autopilots etc I had never given it a second thought, I guess like many people I think of GPS (remind me what is the G in GPS stands for again!) as being a standard across the globe, it looks like in most cases there is some firmware issues and an update is all that is needed, I hope that the DJI Guys do get this taken care of down under, it looks like the big mobile phone / sat nav guy have managed it, I hope you will enjoy the UK / EU / Northern Hemisphere DJI WKM experience very soon :)

 

Regards

Martin

Distributor Comment by Martint BuildYourOwnDrone.co.uk on April 27, 2012 at 11:59pm

@ Ellison,

 

You joke about tuning the GPS upside down, the guy's out in Oz I think from some reading have tried just about every trick in the book to get a solid sat lock from some of the posts I have been reading, I don't think it's so much a DJI issue as there AP's work very well in other places around the globe, there has to be a "little" something that is stopping the system working as DJI are not the first company to have issues "down under" with GPS, I hope that they can resolve it quickly.

 

Regards

 

Martin

Comment by Cliff Dearden on April 28, 2012 at 12:33am

Thanks Martin I hope so to.

Comment by Cliff Dearden on April 28, 2012 at 2:46am

Thanks Jason I might just give it a try. I have spoken to the agent in Oz and he mentioned one of the things

they tried was to 'wave' an ordinary compass over various sections of the quad to try and find the least

amount of deflection and place the GPS aerial there. Apparently the results were'nt always convincing!

Comment by Ruben Wijnhoven on April 28, 2012 at 3:28am

what tape do you use for covering?

Developer Comment by John Arne Birkeland on April 28, 2012 at 8:07am

Usually refereed to as EMI shielding tape. You can get it in most electronic parts shops like digikey etc.

Distributor Comment by Martint BuildYourOwnDrone.co.uk on April 28, 2012 at 11:32am

I know we are a little off topic here, however it's a very vaild point to the WKM users and might even help a little "down under", I have a lock time of way less than a 60 seconds on the F450 / WKM setup which I have been flying, this is from a cold start in a new location, and I promise you I took no care, no shielding tape etc. you can see in the videos the ESC's are held on by one cable tie, I splashed out to two cable ties on the "LED", I don't think this is the issue / the fix for the Oz users... :(  However if it's useful to WKM users to gain better results then I'm all for it! :)

 

Jason, have you seen any flight improvements with your "mod", if that is even possible?  ;)

 

I did see a few posts up that there is a "lets fly" an Ardu copter / WKM copter back to back and see what they do, I will do this when I have the time, however I'm very short on this at the moment as I have a number of builds on the go for customers, and the UK weather is not helping here, this whole week has been lost to rain and silly high winds!

 

Regards

 

Martin.

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