
zūmo 400/450 Owner’s Manual 45
aPPendix
Using a Remote Antenna
You can use an optional external remote
antenna (Garmin GA 25MCX). To
purchase, go to www.garmin.com/
products/zumo400 or www.garmin
.com/products/zumo450, and click the
Accessories link.
Pull back the weather cap from the MCX
connector located on the back of the
zūmo, and connect the antenna.
About GPS Satellite SignalsSatellite Signals
Your zūmo must acquire GPS (Global
Positioning System) satellite signals
to operate. If you are indoors, near tall
buildings or trees, or in a parking garage,
your zūmo cannot acquire satellites.
Go outside to an area free from tall
obstructions to use your zūmo.
When your zūmo has acquired satellite
signals, the signal strength bars on the
Menu page are green . When it
loses satellite signals, the bars turn red or
disappear .
For more information about GPS, go to
www.garmin.com/aboutGPS.