5
VOR NAVIGATION
5-2
Keys used for
Navigation Function
The IC-A25N and IC-A25NE have the keys shown
below to use the VOR Navigation function and
Waypoint Navigation function.
z
Push [F], and then push these keys to use the
functions shown below.
L
See section 6 for Waypoint Navigation function’s details.
q
OMNI BEARING SELECTOR [1]/[OBS]
Push to enter the Omni Bearing Selector (OBS)
mode, to set the course heading.
w
TO/FROM SELECTOR KEY [2]/[TO FROM]
Push to change the “TO/FROM” indicator and
invert the OBS setting on the Course Deviation
Indicator (CDI) screen.
e
WAYPOINT NAVIGATION KEY [4]/[WPT NAV]
Push to display the Waypoint Navigation screen.*
*Only when a waypoint or a flight plan is selected.
r
DIRECT-TO KEY [5]/[ ]
Push to display the “Direct-To WPT” screen, to
enter a waypoint.
t
FLIGHT PLAN KEY [6]/[FPL]
Push to display the current flight plan.*
*Only when a flight plan is selected.
q
e
w
t
r
Course Deviation Indicator
(CDI) screen
The transceiver displays the CDI screen when the
NAV band frequency is selected.
q
w
e
r
t
y
q
COMPASS ROSE
w
COURSE DEVIATION NEEDLE
Displayed when a VOR signal is received.
e
DEVIATION MARKS
r
OBS VALUE INDICATOR
Displays the course heading.
t
VOR VALUE INDICATOR
Displays the heading to or from a VOR.
y
TO/FROM INDICATOR
Using the Omni Bearing
Selector (OBS)
Use the Omni Bearing Selector, as shown below, to
set the course heading.
1. Push [F], and then push [OBS] to enter the OBS
mode.
• The OBS value is highlighted.
2. Rotate [DIAL], or push keypad keys to set the
course heading.
3. Push [ENT] to save the adjusted course heading.
