II Morrow Inc. 920 GPS - Manual (Page 44)

Return to Nav
The "Return to Nav" option is automatically
selected when the main menu is called,
allowing you to conveniently return to the
navigation screen previously in use. Select this
option when you finish using the main menu,
or anytime you wish to return to the
navigation screen in use before the main menu
was called.
Operation Mode
Select your intended type of use for the
receiver with this option. Position accuracy is
optimized for each operating mode. Available
operation modes are:
n
aviation
n
hiking
n land mobile
n
marine
n
survey
n
simulator
This option also allows you to select the map
datum for each mode except simulator.
D
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