When I first start up my relatively new Mini 2, and fly it to 30 feet and then descend, it descends very slowly until it gets to about 20 feet, and then it picks up speed.
When I review the flight logs, I can see what's happening: Initially, the VPS sensor agrees with the IMU. But, when I fly forward a short bit and then release the stick, as the aircraft is slowing down, the VPS is lost ("NA") for 1/10th of a second.
Then it re-establishes VPS, but the VPS is wrong. VPS reports at 6.6 feet, when IMU is showing 24.9 feet (and actual height is a bit higher because the ground slopes downward). By 23 feet, it thinks that I'm at 2.6 feet. Once it gets past that, the VPS resets to a more correct number and my descent resumes as normal.
The descent is obviously slowing because the VPS is wrong and the drone thinks that it's very near the ground.
I can't find any means to calibrate the VPS system.
How do I fix this?
When I review the flight logs, I can see what's happening: Initially, the VPS sensor agrees with the IMU. But, when I fly forward a short bit and then release the stick, as the aircraft is slowing down, the VPS is lost ("NA") for 1/10th of a second.
Then it re-establishes VPS, but the VPS is wrong. VPS reports at 6.6 feet, when IMU is showing 24.9 feet (and actual height is a bit higher because the ground slopes downward). By 23 feet, it thinks that I'm at 2.6 feet. Once it gets past that, the VPS resets to a more correct number and my descent resumes as normal.
The descent is obviously slowing because the VPS is wrong and the drone thinks that it's very near the ground.
I can't find any means to calibrate the VPS system.
How do I fix this?
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