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No satellite acquisition with a portable marine chartplotter (GPSMAP 276c, 376c, 378, 478)
There are a few things that can render the device unable to acquire satellites. If it has moved a great distance while it was turned off or has not been powered on for a few weeks, it may have problems with satellite acquisition.
The first troubleshooting step is to perform an AutoLocate procedure. This procedure will clear the device's memory of previous satellite information, and try to download new information.
Note: This will not clear any user data like waypoints, routes, and tracks.
To perform the AutoLocate procedure, please follow these steps:
- Start with the device powered OFF
- Press and hold the Zoom Out button and Power ON the device
- Continue to hold both the Zoom Out and Power buttons until the I Agree button is highlighted in the middle of the screen
- Press the Enter button
The device should now switch to the GPS satellite screen. Leave the device in clear view of the sky for at least 10-20 minutes to acquire satellites. If the device acquires the satellites before 20 minutes, the device can be used or powered off.
If the AutoLocate procedure does not correct the issue, the next step is to update the internal operating software of the device to the latest version. Please see Related Content for more information.