Your drone has two Height limits.
No .. there is no way for the drone to measure AGL height.
At least in EU countries. Some non-EU countries are members of EASA, and there is some confusion whether the height limit also applies in those countries. In other words, is the max 120m at take-off point only for EU-countries, or for all EASA countries?
The drone can very easily measure above the ground height using GPS; it's quite accurate. If what everyone is say were true you could not sell DJI drones in mountain areas.
No ... it cannot.
Whatever it is that you are suggesting here is unclear.
Huh? I fly in Mountainous Areas 100% of the time and the aircraft has no knowledge of AGL only Height Above Takeoff Point. The UAS doesn't vary height when the ground below it changes unless it's using something like Terrain Awareness which pulls GPS DATA but you have to remember, we are talking about flying at 200' and well clear of terrain variances etc. HUGE difference between that and what you're suggesting.
My understanding is the 400 feet or 120m above take off point is not yet in effect in the EU and will not go into effect until 2024. And when it does go into effect, it does not apply to drones in the UK and for drone that are greater than 249g. I could be wrong....
Mine will go to 1640, but in mountainous terrain it isnt enough. I could still be perfectly legal and still go higher.
My thought is that DjI with todays technology could make monitoring the AGL a thing. Maybe in a future model.
Today's technology still isn't great if you're referring to relying on DEM data to estimate the AGL.
If you have that kind of space and time, is it possible you can land and reset the altitude? That’s pretty high maybe you want to start a bit higher than at the base of your mountains perhaps?
That would work but it would require about half a day to get where the drone can go in a few minutes, very steep.
Almost any airplane on the planet can tell the AGL, it would seem not terribly difficult to incorporate that into drones. But I do admit I am not very knowledgeable on this. I am so ignorant I dont even know what DEM is, lol.
Most light aircraft don't have the ability to tell AGL height because a radar altimeter is expensive and not particularly necessary.
www.bennettavionics.com
As I already stated I plead ignorance. But somehow I think a smaller one could be managed. The old computers used to take up warehouses, now a micro SD card can hold the equivalent data. But I guess that might be why drones don’t have that capability.Airplanes use radar altimeters like the one shown here.
I would like to see that mounted on a mini 4
View attachment 169536
