Garmin GNC 250XL Pilot's Guide and Reference Manual

About this manual

The Garmin GNC 250XL is an advanced panel-mount VFR GPS COM/NAV unit designed for aviation needs. This manual serves as both a pilot's guide and a reference document, detailing the device's key functions, navigation capabilities, and communication features. It includes instructions on using the unit's radio, managing waypoints and database information, and creating routes. The document also covers unit settings, message interpretation, and the use of the included simulator for practice.

What's inside

• Key and Knob Functions
• Navigating and planning functions
• Communicating with the GNC 250XL
• Waypoint and Database Information
• Nearest Waypoints
• Direct-to and Route Navigation
• Messages and Unit Settings
• NavaData and User Data Card Use
• Installation and Maintenance
• Specifications

Specifications

Frequently asked questions

What is the recommended software version for the GNC 250XL?

The manual specifies that Software Version 2.01 or above is required.

How often are the database updates released?

Database information packets are released every 28 days.

Can the GNC 250XL be used for vertical navigation?

No, the calculated altitude is geometric height above mean sea level and should never be used for vertical navigation.