# 1. Disclaimer Before using it, please read the relevant clauses of this statement carefully. Once used, it will be deemed recognition and acceptance of all contents of the relevant provisions. Please strictly follow the manual to install and use the product. Caused by improper use of the user YANGDA and its affiliates will not bear any responsibility for any loss. Regarding the possible semantic differences of the disclaimer in different languages, the Chinese version shall prevail in China, and the English version in other regions shall prevail. ### **Precautions** 1. Before flying, make sure the surrounding environment is safe. 2. Please be sure to fly within the line of sight. 3. During the mission, if the signal from the remote controller is lost, the aircraft will continue to perform the mission and will not go back home without losing control. 4. Unless otherwise specified, the altitude is relative to the altitude of the take-off point. For the same flight mission, if the flight starts at different ground heights, the final altitude (absolute altitude) of the flight will also be different. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.yangdaonline.com/yangda-docs/ground-station-user-manual/launch-gcs/1.-disclaimer.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.