FTA-310 O
perATing
M
AnuAl
40
vor n
avIgatIon
Entering a Desired Course
The
FTA-310
can also be configured to indicate the de-
viation from the desired course, not only the deviation
from the path to the VOR station.
Set the frequency to the desired VOR station.
Change the “
” or “
” flag to “
”, if it is
not in that mode already.
Press [
F
]
[
4
(
CDI
)] key to change to the CDI
mode.
Set the desired course to the VOR station using the
DIAL
selector knob or keypad (three digits are re-
quired; e.g. for 47°, press [
0
]
[
4
]
[
7
]).
Note 1
:
The (“
”) or (“
”) indication will appear
on the display when your aircraft is off the desired
course.
Note 2
:
When your heading is correct, the ABCS function
may be more useful than the course input option
The Course Deviation Arrow points to the right
when your aircraft is off course to the left, and it
points to the left when your aircraft is off course to
the right.
Note 1
:
To get back on course, fly right more than the number of
degrees indicated by the Course Deviation Arrow.
Note 2
:
If the overflow indicator “
” appears on the right side,
select a heading plus 10 degrees to the desired course;
if the overflow indicator “
” appears on the left side,
select a heading minus 10 degrees.
ABCS Mode
In the CDI mode, the Auto Bearing Center System
(ABCS) adds or subtracts the number of degrees in-
dicated by the CDI from the Omni Bearing Selector
(OBS).
