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Real height
552 5 2017-4-21
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El_barto
lvl.3
Flight distance : 18287 ft
French Polynesia
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Hi, I'd like to know if there's a way to know the real height of the bird ?
The height given by bottom sensors.
It could be very useful to know it.

Thanks, Loïc.
2017-4-21
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Geebax
Captain
Australia
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It is shown in the DJI Go app, but it is only good for up to 10 feet or so, as that is the maximum range of the ultra-sonic sensors. The normal altitude is given by the barometric sensor.
2017-4-21
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Labroides
Captain
Flight distance : 9991457 ft
Australia
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Real height?  The barometer shows you the real height above launch point.
I'm guessing you mean the actual height above the ground below the drone.
People ask about that all the time but there is no practical way to do it.
And not just for our toy drones.
Most small aircraft don't have a radar altimeter because they are very expensive and aren't of critical importance.
Here's one of the smallest and cheapest available:
3.5 lbs weight and US$6300
https://buy.garmin.com/en-US/US/p/166298
2017-4-21
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El_barto
lvl.3
Flight distance : 18287 ft
French Polynesia
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Thank you so much, this is exactly what I mean Labroides.
I think our toy know his height above the ground due to ultra-sinic sensors. I'll check Geebax, you mean when we're less that 10ft above the ground the altitude is above the ground ?
2017-4-22
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Labroides
Captain
Flight distance : 9991457 ft
Australia
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El_barto Posted at 2017-4-22 10:14
Thank you so much, this is exactly what I mean Labroides.
I think our toy know his height above the ground due to ultra-sinic sensors. I'll check Geebax, you mean when we're less that 10ft above the ground the altitude is above the ground ?

The VPS on your Phantom 4 pro has a range of 10 metres.
When you are within VPS range you will see a VPS altitude figure at the bottom of your screen showing the height that VPS detects above the ground below it.
2017-4-22
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El_barto
lvl.3
Flight distance : 18287 ft
French Polynesia
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Labroides Posted at 2017-4-22 15:16
The VPS on your Phantom 4 pro has a range of 10 metres.
When you are within VPS range you will see a VPS altitude figure at the bottom of your screen showing the height that VPS detects above the ground below it.

Thanks Labroides, I tested yesterday, it works well.
2017-5-8
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