Hello

i have a annoying Problem with my new Tablet and Skydemon. I actually use the GNS2000 with my Medion Tablet (Android) and it shows me that the GNS2000 receives 17 satellites and more, the GPS Height is 4m. When im sitting in the aircraft and use Skydemon it shows a Height on Ground -180ft and when i use SD on my Iphone it shows always the correctly Height... can anyone explane this? I have no Idea why it is so.
I hope someone can give me the answer

Have a nice day.