What Is EPO or CPE on a Garmin Product?
Extended Prediction Orbit (EPO) or Connected Predictive Ephemeris (CPE) files allow GPS devices to predict where satellites will be in the sky, which reduces GPS acquisition time. With updated EPO or CPE files, instead of taking 2-3 minutes to find GPS signals, it will usually take less than 30 seconds.
How Do I Check EPO or CPE Status?
EPO or CPE status can be checked under About in the System or Setup menu of your Garmin product. EPO and CPE files expire, and are usually only good for a range of 3-14 days. Sync the Garmin product regularly to download new EPO or CPE data.
How Is EPO or CPE Data Downloaded?
Satellite location information is refreshed periodically when your Garmin product syncs data with your Garmin Connect account. This data needs to be refreshed if the product has not been used in over 30 days, or when it has traveled more than 200 miles from its last satellite connection.
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