EPO
What is EPO on an Outdoor
Product?
- Extended Prediction Orbit
(EPO) files allow GPS receivers to predict where satellites will be in the
sky, significantly reducing signal acquisition time.
- Without current EPO information loaded, the
GPSr can require several minutes to locate available GNSS signals.
- With current EPO information loaded, the GPSr
will usually find available GNSS signals within just a few seconds.
- Tip:
The EPO file provides global constellation coverage and does not need to be
updated after changing location.
How do I check EPO Status?
- EPO status can be checked in the
'System > About' or 'Setup > About' page on many Garmin outdoor products.
- You can also manually check the 'Date modified'
status for the [GPSr]\Garmin\GPS\EPO.BIN
file on your device.
- EPO files do expire, and are usually
only good for a range of 3-14 days.
- Sync the device regularly to keep
EPO data current.
How is EPO Data Downloaded?
- Satellite location information is refreshed
periodically when your GPSr syncs data with your smart phone.
- This data is also refreshed if the device has
not been used in over 30 days, or when it has traveled more than 200 miles
from its last satellite connection.
- Frequently syncing your GPSr via the Garmin
Connect or Explore mobile apps, Garmin Express, or by connecting to an active Wi-Fi
network will ensure the most current satellite location information is always
available.
Manual EPO Download +
Installation
- Should your Garmin GPSr exhibit trouble
updating EPO data, follow these steps to manually obtain and install current
EPO information:
- Download and unzip
Get EPO.
- Run Get EPO.exe.
- A new EPO.BIN
file
will appear in the same directory (you may have to refresh the directory).
- Copy this file to [GPSr]\Garmin\GPS\EPO.BIN
on your Garmin Outdoor device.
- Restart the GPSr and verify EPO status is
'Current'.
- Tip:
Copy Get EPO.exe to the [GPSr]\Garmin\GPS\
directory to load future updates while connected to a PC with an active
internet connection.
