# 3.10  Noise Description

Model: lite-640t · Manual v1.0.2
Canonical: https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/3-10-noise-description
Source: https://drive.google.com/file/d/1yQTDKasKxbvfVdANOx9bmlPYml-2dkCE/view
Updated: 2026-10-17

EVO Lite 640T Enterprise · SE V2 controller

When the EVO Lite Enterprise Series multi-rotor drone hovers, it generates noise with an intensity of 69dB (at a distance of 0.5 meters from the aircraft). Users should familiarize themselves with local noise pollution prevention and control regulations and set a reasonable flight altitude or safety distance to ensure no interference with other individuals, groups, or organizations.

[PDF page 61, block 3](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/3-10-noise-description#p61-b3)

## A-weighted sound power level

[PDF page 61, block 4](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/3-10-noise-description#p61-b4)

The EVO Lite Enterprise Series multi-rotor drone has undergone sound power testing by relevant qualified third-party testing agencies, and the results comply with the regulations of the European Union regarding unmanned aerial vehicles.

[PDF page 61, block 5](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/3-10-noise-description#p61-b5)

A-Weighted Sound Power Level of EVO Lite Enterprise Series multi-rotor drone

![A-Weighted Sound Power Level of EVO Lite Enterprise Series multi-rotor drone](https://shop.skyflow.ca/manuals/evo-lite-640t-v1-0-2/7c3dab86a4ca7855e2ab44ef.webp)

[PDF page 61, block 6](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/3-10-noise-description#p61-b6)

## A-weighted sound pressure level

[PDF page 61, block 8](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/3-10-noise-description#p61-b8)

Measurement results for the EVO Lite Enterprise Series multi-rotor drone, in accordance with the requirements of GB 42590-2023 in China’s Mainland, are provided below:

[PDF page 61, block 9](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/3-10-noise-description#p61-b9)

<table><tbody><tr><td>Observation Points</td><td>Hover</td><td>Fly (1 m/s)</td></tr><tr><td>Ground Measure Point (Below)</td><td>68dB</td><td>72.1dB</td></tr><tr><td>Side Measure Point (Horizontal Plane)</td><td>67.3dB</td><td>66.1dB</td></tr></tbody></table>

![Table 3-12 Noise Measurements Results (Normalized to 1 m from the Aircraft)](https://shop.skyflow.ca/manuals/evo-lite-640t-v1-0-2/0124506b81fff0deb5322457.webp)

[PDF page 61, block 11](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/3-10-noise-description#p61-b11)

Note: The measurement environment is an outdoor cement ground.

[PDF page 61, block 12](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/3-10-noise-description#p61-b12)

<ul><li>Before conducting a flight, please make sure to verify the noise restrictions in the flight area in advance to avoid violations of local regulations regarding aircraft noise.</li></ul>

![Manufacturer note](https://shop.skyflow.ca/manuals/evo-lite-640t-v1-0-2/9ed8fc4d5fa01b841aedb55e.webp)

[PDF page 61, block 13](https://shop.skyflow.ca/learn/autel/evo-lite-enterprise/manuals/evo-lite-640t-v1-0-2/3-10-noise-description#p61-b13)