Garmin GNC 420AW GPS Receiver User Manual


 
9 - AUX PAGES
178
190-00356-00 Rev E
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 length field. To enter a different mini-
mum runway length, use the small and large
right knobs to enter the desired length. Press
ENT when finished.
NOTE: Exercise caution when changing the Near-
est Airport Criteria. Remember, by excluding cer-
tain surface types or shorter runway lengths, you
may be excluding airports from the list that are
more than adequate for an emergency landing!
SBAS Selection
To enable WAAS operation, in the Setup 2 page
select the SBAS item and then select WAAS. If WAAS
is disabled, the unit will not be able to fly WAAS
approaches(LP,LPV,LNAV/VNAV,orLNAV+V).
If WAAS was previously disabled, it may take sev-
eralminutestoachievea3D-Diffxafterre-enabling
WAAS.
1. Select “SBAS Selection” from the Setup 2 Page
and press ENT.
To enable WAAS operation, select the “SBAS
Selection”.
2. The flashing cursor highlights the WAAS status
selection. Turn the small right knob to allow
On/Off selection.
Setup 2