Nikon D810 - Manual (Page 257)

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A GPS unit can be connected to the ten-pin remote terminal,
allowing the current latitude, longitude, altitude, Coordinated
Universal Time (UTC), and heading to be recorded with each
photograph taken. The camera can be used with an optional
GP-1 and GP-1A GPS units (see below; note that these units do
not provide the compass heading), or with compatible third-
party units connected via an optional MC-35 GPS adapter cord
(0 440).
❚❚ GP-1/GP-1A GPS Units
These optional GPS units are designed
for use with Nikon digital cameras. For
information on connecting the unit, see
the manual provided with the device.
Location Data
A The o Icon
Connection status is shown by the o icon:
•
o (static): The camera has established
communication with the GPS device.
Photo information for pictures taken while
this icon is displayed includes an
additional page of location data (0 246).
• o (flashing): The location device is
searching for a signal. Pictures taken while the icon is flashing do not
include location data.
• No icon: No new location data have been received from the GPS device
for at least two seconds. Pictures taken when the o icon is not
displayed do not include location data.