Entering A Desired Course - Icom IC-A23 Instruction Manual

6
VOR NAVIGATION

Entering a desired course

The IC-A23 shows not only the deviation from the VOR sta-
tion but the deviation from the desired course.
q Set the frequency for the desired VOR station.
• To change the to-from flag, push
(FROM)].
w Push
, then [4 (CDI)] to select CDI mode.
e Set the desired course to the VOR station using the tuning
dial or keypad.
• 'Ω' or '≈' appears on the function display when your aircraft is off
the desired course.
• When your heading is correct, the ABSS function may be useful
instead of course input.
r The course deviation needle points to the right when your
aircraft is off course to the left.
• To get back on course, fly right more than the number of degrees
indicated by the CDI arrows.
• If the overflow indicator appears on the right side, select a head-
ing plus 10 degrees to the desired course; if the overflow indica-
tor appears on the left side, select a heading minus 10 degrees.
22
q Select 2 VOR stations on your aeronautical chart.
w Set the frequency of one of the VOR station in DVOR
,
then [2 (TO)] or [3
e Set the frequency of the other VOR station in DVOR mode.
r Extend the radials from each VOR station on the chart.
ABSS FUNCTION
In CDI mode, the Auto Bearing Set System (ABSS) adds
or subtracts the number of degrees indicated by the CDI
arrows from the Omni Bearing Selector (OBS).
To use ABSS, push
flag; or, push
flag.
Crosschecking position
mode.
• The course indicator shows course deviation from the VOR ra-
dial. Note the radial you are on.
• Note the radial from the station you are on.
Your aircraft is located at the point where the lines inter-
sect.
, then [2 (TO)] while using the 'TO
, then [3 (FROM)] while using the 'FROM'