Icom IC-A22 Instruction Manual page 26

6 VOR NAVIGATION
i Entering a desired course
The IC-A22 shows not only the deviation from the VOR
station but the deviation from the desired course.
@ Set the frequency for the desired VOR station.
To change the to-from flag, push [F] then [@TO] or
[@FROM].
@® Push [F] then [®CDI] to select CDI mode.
@ Set the desired course to the VOR station using the
tuning dial or keypad.
"<4" or" B® * 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.
@ 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
heading plus 30 degrees to the desired course; if the overflow
indicator appears on the left side, select a heading minus 30
degrees.
i Crosschecking position
@ Select 2 VOR stations on your aeronautical chart.
@ Set the frequency of one of the VOR stations in DVOR
mode.
* The course indicator shows course deviation from the VOR
radial. Note the radial you are on.
@ Set the frequency of the other VOR station in DVOR
mode.
* Note the radial from the station you are on.
@ Extend the radials from each VOR station on the chart.
Your aircraft is located at the point where the lines
intersect.
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 [F] then [@TO] while using the TO
flag; or, push [F] then [@ FROM] while using the FROM
flag.