accuracy using CC2431

Other Parts Discussed in Thread: CC2431

Hello

I am using CC2431ZDK to make a project with location engine, I find parameter A = 40 and N = 27, and I using 7 reference nodes, my precision/accuracy  in real position and meassured position is 4 meters, but I don´t bow if is a good accuracy or a bad accuracy somebody can tell me what the CC2431 accuracy?

thanks