"Thank you Gervais.
I am planning to use Pixhawk on a plane so distance is not an issue and I can put it far away from other components. Considering this, which of GPS units has high quality so I do not worry about high failure rate?
Thanks."

"Are there any good GPS units which you can recommend for Pixracer?"

"Great work!
For GPs have you tested the uBlox unit which you have put on your website(http://www.auav.co/product-p/gpsrtf1.htm)? Is it the recomended GPS?"