# 2.11  Altitude and Distance Limits

Model: lite-640t · Manual v1.0.2
Canonical: https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-11-altitude-and-distance-limits
Source: https://drive.google.com/file/d/1yQTDKasKxbvfVdANOx9bmlPYml-2dkCE/view
Updated: 2026-10-17

EVO Lite 640T Enterprise · SE V2 controller

The altitude limit will restrict the maximum flight altitude of the aircraft; the distance limit will restrict the maximum flight radius distance of the aircraft (with the take-off point as the center). Users can set the altitude and distance limits in the flight application to ensure the safe flight of the aircraft. For more details, please refer to “6.5.1 Flight Control Parameter Setting” in Chapter 6.

[PDF page 36, block 10](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-11-altitude-and-distance-limits#p36-b10)

Altitude and Distance Limitation Diagram

[PDF page 36, block 11](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-11-altitude-and-distance-limits#p36-b11)

<ul><li>In the flight application, the allowable range for altitude restriction is 20 ~ 800m, and the allowable range for distance restriction is 20 ~ 5000m. During actual flight, the set maximum altitude limit should not exceed the altitude restricted by local laws and regulations, such as the maximum flight altitudeof aircraft in China&#x27;s Mainland, the United States, the European Union and other countries and regions should not exceed 120 meters or 400 feet.</li></ul>

![Manufacturer note](https://shop.skyflow.ca/manuals/evo-lite-640t-v1-0-2/f13b73b8b8ed22472328a71d.webp)

[PDF page 36, block 13](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-11-altitude-and-distance-limits#p36-b13)

When setting the maximum altitude limit, the rationality of the return altitude should be fully considered, and the return altitude should not exceed the maximum altitude limit.

[PDF page 37, block 2](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-11-altitude-and-distance-limits#p37-b2)

The return altitude should be set to be higher than the highest obstacle in the flight area.

[PDF page 37, block 3](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/2-11-altitude-and-distance-limits#p37-b3)