Hi Everyone,

I need a little help in identifying if my sonar sensor is working correctly. I recently purchased the MB1200 from the DIYDrones store and flew with it. However I did not get good Alt Hold in Loiter or Altitude Hold mode. I must confess it was cold (0-5 C) and a little windy. So I thought this might be affecting performance. But the logs I collected by just holding the quad at a fixed height (with my hands) indoors, also show some random spikes in the readings. I have attached a plot of it. Could you please suggest if this is normal behavior or some sonar/connectivity issue?

Thanks

Ammar

PS: This plot was collected indoors with me holding the quad in my hands.