Nikon D3X User Manual page 250

Setup Menu Options
The [GPS] item in the setup menu contains the options listed
below.
• [Auto meter off]: Choose whether or not the exposure meters will
turn off automatically when a GPS unit is attached.
Option
Enable
(default)
Disable
• [Position]: This item is only available if a GPS device is connected,
when it displays the current latitude, longitude, altitude,
Coordinated Universal Time (UTC), and heading (if supported) as
reported by the GPS device.
t
A
Heading
The heading is only recorded if the GPS device is
equipped with a digital compass (note that the
GP-1 is not equipped with a compass). Keep the
GPS device pointing in the same direction as the
lens and at least 20 cm (8 in.) from the camera.
A
Coordinated Universal Time (UTC)
UTC data is provided by the GPS device and is independent of the camera
clock.
224
Exposure meters will turn off automatically if no operations
are performed for the period specified in Custom Setting c2
[Auto meter-off delay]. This reduces the drain on the
battery but may prevent GPS data from being recorded if
the shutter-release button is pressed all the way down
without pausing.
Exposure meters will not turn off while a GPS unit is
connected; GPS data will always be recorded.
Description