it never was ment to be accurate. it even says in the description of the block itself. it is a rough estimate. tho it will become beter the closer you get to it. and on the method i came up with 3*x*x. i plotted points in a graph for the x = the value that comes out the counter and y = the distance in meters using a waypoint. then i made a function that goes through those point the best i could make it

It's not accurate... I'm wondering why you did "3*x*x" in your MC. The math doesn't come even close to that... if the beacon was more than 3km away, you'd end up being way off in meter as this reports the distance.