Thanks for that idea
All I am trying to do is help explain any wierd spikes, possibly for use in explaining any purple rain - after the event!!!
The data would be there, and may assist in explaining any other funnies!!!
If you canot capture data such as this - how do you explain it when later asked?
Addl thought -
Just location and distance from it could cause problems for mobile use.
I think the positional change would be more accurate in showing "errors" to be ignored!!!