# TDS GTNXi The Garmin GTNXi is an upgraded, state-of-the-art avionics system. Featuring a high-resolution touchscreen display, the GTNXi combines GPS, NAV, and COMM functions in a sleek, intuitive unit. It enhances flight planning, navigation, and communication with advanced capabilities, including faster processing speeds, improved graphical displays, and enhanced connectivity options. The GTNXi supports a broad range of features such as graphical flight planning, traffic and weather integration, and terrain awareness. Some operators have retrofitted their 727s with the GTNXi. Sometimes it's linked to the autopilot, and sometimes it's only used as a standalone module. We have integrated it with the entire aircraft for maximum convenience, allowing control of not only the autopilot but also the COM/NAV frequencies and the transponder through it. The TDS GTNXi is available as an additional payware product. Please refer to the [TDS documentation](https://www.tdssim.com/Downloads/Manuals/TDSGTNXiFlightSimManual.pdf) for installation and use. --- # 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.flightsim-studio.com/boeing-727/navigation-options/tds-gtnxi.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.