I have a question regarding what altitude to use in mission planning. I hope this makes sense. I’m new to this so if this seems obvious, my apologies. My confusion stems from the use of the ‘Verify Height’ check box and what effect it has on the altitude settings.
If the check box is disabled, the altitude settings appear to reflect the altitude above where the copter was armed. In other words, when the copter is armed, that altitude is the 0m mark and any altitude settings in your mission plan are meters above that 0m altitude. Another way of looking at it is that all altitude settings are ‘height above ground level’ assuming your flying field is relatively flat.
All of this changes when the ‘Verify Height’ check box is checked. It appears to me that when it is checked, that mission planner begins to use ‘height above sea level’ plus the ‘Default Alt’ setting. At my field, all of the way points I enter default to roughly 290m. I’m concerned that if I leave the ‘verify height’ settings in place that my copter will climb to 290m above ground level.
I hope this makes sense. Maybe I should just not use the ‘Verify Height’ since my field is relatively flat, but I was curious how it worked.