25
Basic Operation
Operation Bands
When the
FTA-750L/FTA-550
are turned on for the
first time, it enters the COMM mode and displays the
COM band screen. The COMM mode is the basic opera-
tion mode of the
FTA-750L/FTA-550
that allows you to
tune through either of the NAV and COM bands using the
DIAL
knob or the keypad.
NAV band (108.000 - 117.975
MHz):
Band for navigation utilizing data signals emitted by
VOR (VHF omnidirectional range) stations and ILS
(instrument landing system) of airports.
COM band (118.000 - 136.975
MHz):
Band for communication utilizing audio signals.
When the
FTA-750L/FTA-
550
receive a data signal
associated with VOR or
ILS, the display will auto-
matically switch to the NAV
band screen which shows a
CDI (course deviation indi-
cator) based on the received
signal, and “
NAV
”, which
indicates that the
FTA-
750L/FTA-550
are on the
NAV band, appears on the
display.
113.600
VOL
SOG
KT
150
355
°
OBS
000
°
NAV
VOR
FROM
KLAX-VOR
N
S
E
W
33
24
21
15
12
30
3
6
When receiving a VOR
signal on the FTA-750L