If you look at your history data available on the map it is displayed incorrectly in some instances.My moving average has been slowly dropping over time which is fine but I noticed that when my ACPM dropped from 14.10 to what was supposed to be 14.09 it went to 14.90 and as my average has continued downward it is following the same pattern i.e. instead of 14.08 it will read 14.80, 14.07 reads 14.70 etc... Just thought I'd let you know. By the way it reads the way it is supposed to in the "Text" mode on the detector (GMC 500 Plus).
Sorry it took so long to reply. If you look at my logged data on 9/15 you will see where it went from an average of 14.11 then after a short while it went to 14.10 which is what it should be but then shortly there after the next drop was 14.90 instead of 14.09 and if you continue on you will see that the next drop reads 14.80 instead of 14.08 and on and on until it finally drops to 14.00 then the next drop is to 13.99 which is what it is supposed to be. This problem only shows up when the reading gets to a value XX.10 and then drops below this value. Instead of dropping to XX.09 it will read XX.90 etc... Hope this helps.