> Date: Wed, 13 Nov 2013 10:37:41 +0000
> From: address@hidden
> To: address@hidden
> Subject: Re: [Paparazzi-devel] New GPS for centimeter level precision GPS
> On 13 November 2013 09:55, Karoly Molnar <address@hidden
> > Hi
> > IMHO, USD 500 is rather steep price for a GPS.
> > I have a second-hand information about a cheaper alternative. Once I had a
> > discussion with a vendor who is developing a data logger /live video capture
> > / gps capture solution for the automotive market. Due to the nature of this
> > business they are testing their solution with as much GPS recivers as they
> > find around the world. They have noted that the accuracy of the GPS
> > solutions vary significantly on each market. The most accurate GPS receivers
> > they have worked with were available for the South Korean internal market.
> > As they said, those were in the 10cm accuracy range. I did not explore this
> > further but if someone is interested, it might worth to check what is
> > available there and procure a few pieces for testing.
> My guess is they're using DGPS. There are a number of known base
> stations in South Korea.
> I looked into this briefly, and it seems like you can use DGPS with
> u-blox - all you have to do is send it RTCM messages. There's a list
> of transmitters here:
> these send RTCM, but it doesn't say so explicitly).
> It also looks like you can get them over the 'net:
. And possibly other places.
> This seems like something that wouldn't be too hard to add to the
> u-blox support.
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