TM 55-1510-222-MTF
P R O C E D U R E
T R O U B L E S H O O T I N G
R E F E R E N C E
G. AVIONICS FLIGHT CHECKS (CONT)
marker beacon
indication
when leaving the point direct-
ly over the ground station,
and visa-versa.
*10.
VOR receiver - Check as follows: K11-12,27-
a.
b.
C.
d.
e.
f.
g.
29
NAV A control (audio control
panel) - Depress on and rotate
clockwise to set volume.
Off/volume control (VOR
control panel) - Rotate clock-
wise to turn set on. and set
volume as required.
Frequency selectors - Set test
frequency.
Course indicator switches (in-
strument panel) - VOR.
Fly directly toward a VOR
station of known direction
and near enough to provide a
reliable signal.
Rotate course card on course
deviation indicators until di-
rection to station is beneath
course
index.
The VOR/
localizer needle should be
nearly centered and the to/
from indicator should read to.
The red glideslope warning
flag should be visible but the
VOR/localizer warning flag
should be concealed.
Rotate course card until di-
rection to station is beneath
4-30
