# Sirius RTK GNSS Base (F9P) ![](/files/-LkZqyAhLtOxLFPWjqZf) The F9P RTK GNSS Base is made to provide the most reliable base module possible. Featuring an **active antenna**, it is the best module to provide your system with an accurate and powerful base module. It has integrated **rechargeable batteries** so it can be used as stand-alone module without an external power supply, and a built-in jack connector to recharge these batteries. It guarantees a **clean transportation on the field**. It can easily be put onto a **tripod** thanks to it's **threaded hole underneath the case.** ![](/files/-LlVtKmpycth7LTucgBq) --- # 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://drotek.gitbook.io/rtk-f9p-positioning-solutions/rtk-f9p-drotek-modules/sirius-rtk-gnss-base-f9p.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.