Garmin GNS 430 User Manual
Page 3
 
GNS 430 Quick Reference
KEYS AND KNOBS
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190-00140-01 Rev. G
RiGht-haNd KeyS aNd KNobS
The RNG Key allows the pilot to select the desired map
range. Use the up arrow of the key to zoom out to a larger 
area, or the down arrow to zoom in to a smaller area.
The Direct-to Key provides access to the direct-to
function, which allows the pilot to enter a destination 
waypoint and establishes a direct course to the selected 
destination.
The MENU Key displays a context-sensitive list of
options. This options list allows the pilot to access 
additional features or make settings changes which relate 
to the currently displayed page.
The CLR Key is used to erase information, remove
map detail, or to cancel an entry. Press and hold the CLR 
key to immediately display the Default NAV Page.
The ENT Key is used to approve an operation or
complete data entry. It is also used to confirm information, 
such as during power on.
The large right knob is used to select between the
various page groups: NAV, WPT, AUX, or NRST. With 
the on-screen cursor enabled, the large right knob allows 
the pilot to move the cursor about the page. The large 
right knob is also used to move the target pointer right 
(turn clockwise) or left (counterclockwise) when the map 
panning function is active.
The small right knob is used to select between the
various pages within one of the groups listed above. Press 
this knob momentarily to display the on-screen cursor. 
The cursor allows the pilot to enter data and/or make a 
selection from a list of options. The small right knob is 
also used to move the target pointer up (turn clockwise) or 
down (counterclockwise) when the map panning function 
is active.
bottom Row KeyS
The CDI Key is used to toggle which navigation source
(GPS or VLOC) provides output to an external HSI or CDI.
The OBS Key is used to select manual or automatic
sequencing of waypoints. Pressing the OBS Key selects 
OBS mode, which retains the current ‘active to’ waypoint 
as the navigation reference even after passing the waypoint 
(i.e., prevents sequencing to the next waypoint). Pressing 
the OBS Key again returns the unit to normal operation, 
with automatic sequencing of waypoints. When OBS 
mode is selected, the pilot may set the desired course to/
from a waypoint using the ‘Select OBS Course’ pop-up 
window, or an external OBS selector on the HSI or CDI.
The MSG Key is used to view system messages and to
alert the pilot to important warnings and requirements.
The FPL Key allows the pilot to create, edit, activate,
and invert flight plans, as well as access approaches, 
departures, and arrivals. A closest point to flight plan 
feature is also available from the FPL Key.
The PROC Key allows the pilot to select and remove
approaches, departures, and arrivals from the flight plan. 
When using a flight plan, available procedures for the 
departure and/or arrival airport are offered automatically. 
Otherwise, the pilot may select the desired airport, then 
the desired procedure.
to poweR oN the GNS 430
1) Turn the COM Power/Volume Knob clockwise
to turn the unit power on and set the desired 
radio volume.
2) A welcome page appears briefly while the unit
performs a self test, followed sequentially by 
the Unit Type Page and the Software Versions 
Page. Then (depending on configuration) the 
Weather Page, the Traffic Page, the Aviation 
Data Page, the Land/Terrain/Obstacles Data-
base Page, and the Situational Awareness Page 
are sequentially displayed.