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| Correct WAAS is useless by itself. Regular satellites send you location but can be skewed by weather, objects, reflections, etc. A correctional signal comes from a fixed antenna that knows its exact location from never moving for an extended period of time and can tell when that signal is skewed and by how much and which way. It then beams that to your antenna and your system adjusts accordingly. Basically an RTK radio base station is telling your system "satellites are reading 3.2 inches off this direction at this exact moment" and telling your system that and it corrects accordingly. Similarly, the corrections signals can also be skewed based of distance, line of site, etc | |
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No more SF1 or WAAS???
