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Farms easily could. You can get GPS RTK kits that cost less than $1k and you could set that up at a central location, with wired power systems, etc.... it could

Farms easily could. You can get GPS RTK kits that cost less than $1k and you could set that up at a central location, with wired power systems, etc.... it could calculate its own position down to the centimeter, and then you could use that to help provide correctional information to other clients. SparkFun has some kits in this space, but you can easily pay up to $10k or more for a more commercialized system that is designed for surveying, or other related purposes.

moffkalast 4y ago
Aren't there public RTK ground stations already covering most landmasses? I've used a few RTK receiver modules and always got centimetre level accuracy without having to buy an actual station. Was that actually SBAS data or what? I'd always assumed that SBAS was slow and only used by those geodesic receivers that get planted for an hour to refine their position down as much as possible. If that's really true then what the was even the point of building Galileo HAS then? I swear these things could not be more confusing.
- myself248 4y ago
  Yeah, my state's Department of Transportation runs a GBAS/CORS network and anyone can have access to it just by asking. Trouble is, that (and Galileo HAS) assumes you have internet access. Maybe you're so far out in the middle of nowhere (This is Australia we're talking about in TFA) that the internet isn't available, or reliable. So maybe you think satellite-based corrections are the way to go, but I concur, a local RTK reference would also work. (But 99.9% of the time, the satellite service is gonna be less hassle.)
- rstuart4133 4y ago
  Australia does have a public RTK network, which is free to access - you only have to ask. But you need internet access, and RTK only works is you are within 20km or so of the base station. As other have said can do a local install. A pair of RTK receivers is only $500. But you need a connection between the base station and the tractor. These farms are pretty flat so perhaps perhaps technically it's not so difficult with LORA. But these are farmers, not hackers, and perhaps it has to talk to the tractor, and perhaps the tractor is made by John Deer. It all gets very hard very quickly. In the mean time SBAS was a off the shelf solution the dealer could sell to everyone because it worked everywhere in the country. Until it didn't.

moffkalast 4y ago

Aren't there public RTK ground stations already covering most landmasses? I've used a few RTK receiver modules and always got centimetre level accuracy without having to buy an actual station. Was that actually SBAS data or what? I'd always assumed that SBAS was slow and only used by those geodesic receivers that get planted for an hour to refine their position down as much as possible. If that's really true then what the was even the point of building Galileo HAS then? I swear these things could not be more confusing.

myself248 4y ago
Yeah, my state's Department of Transportation runs a GBAS/CORS network and anyone can have access to it just by asking. Trouble is, that (and Galileo HAS) assumes you have internet access. Maybe you're so far out in the middle of nowhere (This is Australia we're talking about in TFA) that the internet isn't available, or reliable. So maybe you think satellite-based corrections are the way to go, but I concur, a local RTK reference would also work. (But 99.9% of the time, the satellite service is gonna be less hassle.)
rstuart4133 4y ago
Australia does have a public RTK network, which is free to access - you only have to ask. But you need internet access, and RTK only works is you are within 20km or so of the base station. As other have said can do a local install. A pair of RTK receivers is only $500. But you need a connection between the base station and the tractor. These farms are pretty flat so perhaps perhaps technically it's not so difficult with LORA. But these are farmers, not hackers, and perhaps it has to talk to the tractor, and perhaps the tractor is made by John Deer. It all gets very hard very quickly. In the mean time SBAS was a off the shelf solution the dealer could sell to everyone because it worked everywhere in the country. Until it didn't.