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6 Forerunner 405CX Owner’s Manual
Getting Started
monitor to pair (connect) with your
Forerunner. See Step 5 for more
information.
The Forerunner uses your user
prole to calculate accurate workout
data. Using the table on page 5,
select 0-10 to set your activity class.
Step 4: Acquire Satellite
Signals
To set the correct time of day and
begin using the Forerunner, you must
acquire GPS satellite signals. It may
take a few minutes to acquire signals.
NOTE: To turn off the GPS
receiver and use the Forerunner
indoors, see page 21.
NOTE: You cannot acquire
satellites in power save mode. To
exit power save mode, press enter
or quit.
1. Go outdoors to an open area. For
the best reception, make sure
the antenna of the Forerunner is
oriented toward the sky.
Antenna
location
2. Touch and hold
training to enter
training mode.
3. Stand still and do not begin
moving until the locating satellites
page disappears.
When you are receiving satellite
signals, the GPS icon appears in
the training mode pages.