POWER ON
The COM power/volume turns the unit on and sets the desired radio volume. The
self test screen will display briefl y. If the airplane has an Avionics Master switch,
turn it on.
Database Confi rmation -
Database current? Press ENT.
AOPA Air Safety Foundation
recommends using a current
database.
Instrument Panel Self Test -
Compare the GPS screen with
panel instruments. Everything
OK? Press ENT.
Map Page - When the GPS
has acquired enough satellites
for navigation, the Map page
shows your present position.
USING THE VHF COM
All COM controls and indicators are located on the left. The active
frequencies are on top, standby on the bottom. Only the standby
frequency can be tuned directly. Once tuned, it is transfered to the
active position.
Position Entry Cursor - If the tuning cursor is not currently in the
COM window, press the small left knob momentarily.
Enter Frequency - The large left knob tunes MHz. Think "big number,
big knob". The small left knob tunes kHz.
Activate Frequency - The COM fl ip-fl op key activates the tuned
frequency. The standby frequency becomes active, and the active
frequency becomes standby.
Adjust Volume - using the power/volume knob. Press it momentarily to disable
the automatic squelch.
EMERGENCY FREQUENCY
Press and hold the COM fl ip-fl op key for two seconds to quickly tune
121.5.
USING VLOC
VLOC refers to tuning and navigating with VOR and localizer (LOC)
signals. All VLOC controls and indicators are located on the left. The
active frequencies are on top, standby on the bottom.
Position Entry Cursor - If the tuning cursor is not currently in the
VLOC window, press the small left knob momentarily.
Enter Frequency - The large left knob tunes MHz. Think "big number,
big knob". The small left knob tunes kHz.
Activate Frequency - The VLOC fl ip-fl op key activates the tuned
frequency. The standby frequency becomes active, and the active
frequency becomes standby.
Adjust Volume - using the VLOC volume knob. Press it momentarily to enable
and disable the navigation aids ident tone.
SELECT NAV SOURCE
The CDI key toggles between GPS and VLOC outputs for the CDI or HSI. The
selected navigation source is displayed just above the CDI key.
CAUTION
Selecting the wrong CDI source is a common but serious problem.
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