As GPS units are used, data is gathered which helps them acquire
satellites quickly at the start of each use. If a device is used daily
it should be able to acquire satellites in a minute or less. Using a GPS
device while it is outdoors with a clear view of the entire sky is the
ideal condition for acquiring satellites. Please know that there can be
several different factors that may cause a GPS unit to not acquire
satellites:If your unit is trying to acquire satellites for
the first time, it may take longer than normal to establish an initial
position. If the unit is powered on and outdoors with a clear view of
the sky this should not take more than 3-5 minutes.If your unit
has not been used for an extended period of time (more than a month),
it may take 3-5 minutes to acquire satellites.If your unit is
indoors, it may not acquire satellites. Even standing next to a window
indoors will block a majority of the sky which is needed for a device to
locate and lock onto a satellite signal.If you have just
finished updating the software in your unit or you have performed a
master reset, your unit may take 3-5 minutes to acquire while outdoors
as the data that is used to locate satellites may have been erased.If
your unit has traveled over 500 miles while turned off or not tracking
your travel, it may take 3-5 minutes to acquire even in ideal
conditions.If your vehicle has a protective coating on its
windshield or electronic devices which interfere with the unit receiving
signal, your unit may need an
external antenna* in order to acquire satellites.If
you suspect this to be an issue, try taking the unit outside of the
vehicle with a clear view of the sky for 3-5 minutes so that the unit
can acquire satellites. If your unit loses satellites once moved back
into your vehicle you will most likely need an
external antenna*.If
your unit is still having trouble acquiring satellites, please ensure
that it has the latest version of operating software by using our
WebUpdater
program. Once your unit is updated please allow the unit to acquire
satellites outdoors in a stationary position with a clear view of the
sky.*Note: Some units may not be compatible with an external
antenna. Please check the Compatible Devices tab on the external
antenna's page to see if your unit is listed. OR
I set up this link that will take you to ensure
that it has the latest version of operating software
http://www8.garmin.com/products/webupdater/howtoinstall.jsp
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