Garmin GPS 400W Pilot's Manual & Reference page 176

9 - AUX PAGES
Setup 1
CDI Scale
Auto (oceanc)
±2.0 NM or Auto (en route)
±1.0 NM or Auto (termnal)
±0.3 NM or Auto
(approach)
An "auto" ILS CDI selection allows the 500W-
series unit to automatically switch the external CDI
from the GPS receiver to the VLOC receiver, when
intercepting the final approach course. Or, select
"manual" to manually switch the external CDI
connection, as needed (using the CDI key). If the
unit is installed with a KAP140/KFC225 autopilot,
automatic switching will not take place. See AUX
- Setup 1 for ILS CDI Selection details.
CDI scales and corresponding Flight Phases:
Oceanic
En Route
Terminal
Approach
166
Horizontal Alarm
Limit
2.0 NM
2.0 NM
1.0 NM
0.3 NM
190-00356-00 Rev B
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, pressure and temperature. Also provides two
magnetic variation (heading) options: Auto or True.
If "Auto" is selected, all track, course and heading
information is corrected to the magnetic variation
computed by the GPS receiver. The "True" setting
references all information to true north.
Position / Map Datum— configures position
readout information to the desired position format
and shows the Map Datum. The NavData
uses the WGS 84 map datum to conform to WAAS
requirements.
Date / Time— provides settings for time format
(local or UTC; 12- or 24-hour) and time offset. The
time offset is used to define current local time. UTC
(also called "GMT" or "zulu") date and time are cal-
culated directly from the GPS satellites' signals and
cannot be changed. If you prefer to use local time,
simply designate the offset by adding or subtracting
the correct number of hours and minutes.
Not all time zones are offset from UTC by a whole
number of hours (e.g., Newfoundland, Central
Australia, India, Iraq, ...).
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