Garmin 430w Manual

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Setup 1
more than 500 feet above or below an airspace, you 
will not be notified with an alert message; if you are 
less than 500 feet above or below an airspace and 
projected to enter it, you will be notified with an 
alert message. The default is 200 feet. 
CDI / Alarms— allows you to define the scale for 
the 400W-series unit on-screen course deviation 
indicator. The scale values represent full scale 
deflection for the CDI to either side. The default 
setting is “Auto”. At this setting, the CDI...

172
An arrival alarm, provided on the CDI / Alarms 
Page, may be set to notify you with a message when 
you have reached a user-defined distance to the 
final destination (the direct-to waypoint or the last 
waypoint in a flight plan). Once you have reached 
the set distance (up to 99.9 units), an “Arrival at 
[waypoint]” message is displayed. 
Units / Mag Var— allows you to configure the dis-
played data to standard or metric units of measure. 
This setting applies to distance, speed, altitude, 
fuel,...

173
Setup 1
 NOTE: When an approach has been loaded into 
the active flight plan, airspace alert messages 
will be disabled within 30 NM of the destination 
airport. 
CDI Scale / Alarms
To change the CDI scale: 
1.  Select “CDI / Alarms” from the Setup 1 page. 
2.   The flashing cursor highlights the “Selected 
CDI” field. Turn the small right knob to select 
the desired CDI scale. The selected scale and 
any lower scale settings will be used during 
the various phases of flight. 
3.   Press ENT to...

174
Units / Mag Var
To set the magnetic variation: 
1.   Select “Units / Mag Var” from the Setup 1 
page. 
2.   The flashing cursor highlights the heading 
mode field. Turn the small right knob to select 
the desired heading mode:  Magnetic, True, or 
User. Press ENT to accept the selection. 
3. If User Heading is selected, the flashing cursor 
will highlight the Heading field. Turn the small 
right knob to the desired heading values, 
hemisphere and then degrees. 
 NOTE: Manual (User) selection of the...

175
Setup 2
Position Format
To change the position format: 
1.   Select “Position Format / Map Datum” from 
the Setup 1 page. 
2.   The flashing cursor is on the position format 
field. Turn  the small right knob to select the 
desired position format. The following position 
formats are available: 
•   hddd°mm.mmm’—latitude and longitude in 
degrees and decimal minutes
•   hddd°mm’ss.s”—latitude and longitude in 
degrees, minutes and decimal seconds
•   MGRS—Military Grid Reference System
•...

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the United States, all local time offsets will use 
be minus, or behind UTC.) 
4.  Press ENT to accept the selected offset. 
Restoring Factory Settings
When making changes to any setup 1 page option, 
a “Restore Defaults?” menu selection allows you to 
restore the original factory settings (for the selected 
item only). For example, with the airspace alarms page 
displayed, the “Restore Defaults?” option will restore 
all airspace alarms page settings to the original factory 
values. 
To restore a...

177
Setup 2
The following setup items are available: 
Display— allows you to adjust the display for 
optimum viewing in any condition. Automatic back-
lighting is available which uses a built-in photocell 
(at the top left corner of the display bezel) to make 
the proper display adjustments without any user 
intervention. Automatic contrast adjustment varies 
the screen contrast level based upon current unit 
temperature. You may also select manual control of 
the display contrast and backlighting to...

178
4.  Turn  the large right knob to highlight the 
right (decimal) part of the frequency field. 
5.   Turn the small right knob to enter the desired 
frequency. 
6.   Repeat for any remaining desired frequencies, 
then press the small right knob to finish. 
When the remote Com frequency recall switch is 
pressed, the next preset frequency will be moved into 
the Com Standby frequency box and a small window 
with the current Com Frequency Preset number will 
appear next to it. You can scroll down...

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Nearest Airport Criteria
To set the minimum runway length and runway 
surface: 
1.   Select “Nearest Airport Criteria” from the Setup 
2 page. 
2.   The flashing cursor highlights the runway sur-
face field. Turn the small right knob to select 
the desired surface. The following options are 
available: 
• Any  surface
• Hard surfaces only 
• Hard / Soft surfaces
• Water  landings only 
3.   Press ENT to accept the runway surface selec-
tion. 
4.   The flashing cursor moves to the minimum 
runway...

180
Section 10   
Fault Detection & Exclusion
The Garmin 400W-series software incorporates 
a Fault Detection and Exclusion (FDE) algorithm, 
thus providing a basis for approval per FAA Notice 
N8110.60 requirements for “GPS as a Primary Means 
of Navigation for Oceanic/Remote Operations”. 
The FDE consists of two distinct features, fault 
detection and fault exclusion. The fault detection 
feature detects the presence of an unacceptably large 
pseudorange error for a satellite (and presumably, 
position...