Icom Ic-A234, Ic-A6 Vhf Air Band Transceiver Instruction Manual

16
5
SCAN OPERATION
Scan typesThe U.S.A. version has 3 scan types to suit your needs. The
non-U.S.A. versions have 2 scan types.
COM band scanqPush [CLR•DEL] to select the frequency mode.
wPush [SQL•
WX-ALERT
] to set the squelch level to the point
where noise is just muted.
ePush  , then push [ANL•
SCAN
] to start the scan.
• When a signal is received, the scan pauses until it disappears.
•To change the scanning direction, rotate [DIAL].
rTo stop the scan, push [CLR•
DEL
].
Memory scanqPush [MR•
MW
]...

17
5
SCAN OPERATION
Weather channel scan 
(U.S.A. version only)
qPush  , then push [ENT•
WX
] to select a weather chan-
nel.
wSet squelch to the point where noise is just muted.
ePush  , then push [ANL•
SCAN
] to start the scan.
• When a signal is received, the scan pauses until it disappears.
•To change the scanning direction, rotate [DIAL].
rTo stop the scan, push [CLR•
DEL
].
“TA G” channel settingMemory and weather channels* can be specified to be
skipped for the memory and weather channel* scans...

18
6
VOR NAVIGATION (IC-A24 ONLY)
VOR indicators
21434
FROM
COM BAND
(118.00  136.975 MHz)
NAV BAND (108.00  117.975 MHz)
DVOR MODE
Function display of the IC-A24 General VOR equipmentTo-from flag 
indicator
CDI MODE Course indicator
Course
indicator
Course deviation needles
Overflow indicatorPush [F] then [4 
CDI
]. Push [F] then [1 
DVOR
].
To-from flag indicator
Course indicator
Course deviation 
needle To-from flag indicator
Two-degree deviation 
marks
56 

19
6
VOR NAVIGATION (IC-A24 ONLY)
VOR functionsDTo select the CDI modeTo show the deviation between your flying course and the de-
sired course, push  , then push [4•
CDI
] to select the CDI
mode.
DTo select the DVOR modeWhen entering the NAV band, 108.000–117.975 MHz, the
IC-A24 selects the DVOR mode automatically.
To show your aircraft’s direction to (or from) the VOR station,
push  , then push [1•
DVOR
] to select the DVOR mode.
D‘TO’or ‘FROM’flag selectionThe to-from flag indicators indicate whether...

20
6
VOR NAVIGATION (IC-A24 ONLY)
Flying to a VOR stationThe IC-A24 shows the deviation from a VOR station.
qSelect a VOR station on your aeronautical chart and push
the keypad or rotate [DIAL] to set the frequency of the sta-
tion.
•The course indicator indicates where you are located on a radial
from the VOR station.
•The course indicator shows ‘- -’when either aircraft is too far
away from the VOR station or the frequency is not set correctly at
the VOR station.
wSelect the ‘TO’flag when flying to the...

21
6
VOR NAVIGATION (IC-A24 ONLY)
VOR
station
0  10  
20  
30  
40  
50  
60  
70  
80  
90  
100  
110  
120  
130  
140  
150   160   170   180   190   200   210   220   230   240  250  260  270  280  290  300  310  320  330  
340  
350  
N
Magnetic
north
Desired courseAircraft heading 40  
  123.65
VORTAC
SEATTLE
116.8 Ch 115 SEA
THE AIRCRAFT IS ON COURSE
VOR
station
0  
10  
20  
30  
40  
50  
60  
70  
80  
90  
100  
110  
120  
130  
140  
150   160   170   180   190   200   210   220   230   240...

22
6
VOR NAVIGATION (IC-A24 ONLY)
Entering a desired courseThe IC-A24 shows not only the deviation from the VOR sta-
tion but the deviation from the desired course.
qPush the keypad or rotate [DIAL] to set the frequency for
the desired VOR station.
•Push 
,then push [2•
TO] or [3•
FROM
] to change the to-from
flag.
wPush  , then push [4•
CDI
] to select CDI mode.
eSet the desired course to the VOR station using the tun-
ing dial or keypad.
•‘Ω’or ‘≈’appears on the function display when your aircraft is...

23
6
VOR NAVIGATION (IC-A24 ONLY)
EXAMPLE:Entering the desired course bearing 65°to a VOR station.
VOR
station
0  
10  
20  
30  
40  
50  
60  
70  
80  
90  
100  
110  
120  
130  
140  
150   160   170   180   190   200   210   220   230   240  250  260  270  280  290  300  310  320  330  
340  
350  
N
Magnetic
north
VOR
station
0  
10  
20  
30  
40  
50  
60  
70  
80  
90  
100  
110  
120  
130  
140  
150   160   170   180   190   200   210   220   230   240  250  260  270  280  290  300  310...

24
6
VOR NAVIGATION (IC-A24 ONLY)
Duplex operation 
(U.S.A. version only)
The duplex function allows you to call a flight service station
while receiving a VOR station. The duplex function requires
frequency programming for the flight service station in ad-
vance.DProgramming a duplex frequencyqPush [CLR•
DEL
] to select the frequency mode.
wSet a NAV band frequency using the tuning dial or keypad.
•NAV band frequency range: 108.00–117.975 MHz
ePush  , then push [5•
DUP-W
].
•“DUP” flashes and transmit...

25
7
BATTERY PACKS
Battery chargingPrior to using the transceiver for the first time, the battery
pack must be fully charged for optimum life and operation.
CAUTION:To avoid damage to the transceiver, turn the
power OFF while charging.
• Recommended temperature range for charging: 
+10°C to +40°C (+50°F to +104°F)
- The Li-Ion battery (optional) is functioning within –20°C to
+60°C (–4°F to +140°F)
• Use the supplied AC adapter on regular charging. NEVER
use another manufacture’s adapters.
• Use the...