INSTRUCTION MANUAL
VHF AIR BAND TRANSCEIVER
iA24
iA6
This device complies with Part 15 of the FCC
Rules. Operation is subject to the condition
that this device does not cause harmful interference.
IC-A24
IC-A6
SAFETY TRAINING INFORMATION
Your Icom radio generates RF electromagnetic energy during
transmit mode. This radio is designed for and classified as
“Occupational Use Only”, meaning it must be used only during the course of employment by individuals aware of the
hazards, and the ways to minimize such hazards. This radio
W ARN ING is NOT intended for use by the “General Population” in an
uncontrolled environment.
This radio has been evaluated for compliance at the distance of 2.5 cm with
the FCC RF exposure limits for “Occupational Use Only”. In addition, your
Icom radio complies with the following Standards and Guidelines with regard
to RF energy and electromagnetic energy levels and evaluation of such levels
for exposure to humans:
• FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency
Electromagnetic Fields.
• American National Standards Institute (C95.1-1992), IEEE Standard for
Safety Levels with Respect to Human Exposure to Radio Frequency
Electromagnetic Fields, 3 kHz to 300 GHz.
• A merican National Standards Institute (C95.3-1992), IEEE Recommended Practice for the Measurement of Potentially Hazardous Electromagnetic Fields– RF and Microwave.
• The following accessories are authorized for use with this product. Use of
accessories other than those specified may result in RF exposure levels
exceeding the FCC requirements for wireless RF exposure.; Belt Clip
(MB-86/103), Speaker Microphone (HM-173), Rechargeable Ni-MH Battery Pack (BP-210N) and Alkaline Battery Case (BP-208N).
To ensure that your expose to RF electromagnetic energy is within the FCC allowable limits for occupational
use, always adhere to the following guidelines:
C AU TIO N
i
• DO NOT operate the radio without a proper antenna attached, as this
may damage the radio and may also cause you to exceed FCC RF exposure limits. A proper antenna is the antenna supplied with this radio by
the manufacturer or antenna specifically authorized by the manufacturer
for use with this radio.
• DO NOT transmit for more than 50% of total radio use time (“50% duty
cycle”). Transmitting more than 50% of the time can cause FCC RF exposure compliance requirements to be exceeded. The radio is transmitting
when “
” appears on the function display. You can cause the radio to
transmit by pressing the “PTT” switch.
• ALWAYS keep the antenna at least 2.5 cm (1 inch) away from the body
when transmitting and only use the Icom belt-clips which are listed on
page 32 when attaching the radio to your belt, etc., to ensure FCC RF
exposure compliance requirements are not exceeded. To provide the recipients of your transmission the best sound quality, hold the antenna at
least 5 cm (2 inches) from your mouth, and slightly off to one side.
The information listed above provides the user with the information needed to
make him or her aware of RF exposure, and what to do to assure that this
radio operates with the FCC RF exposure limits of this radio.
Electromagnetic Interference/Compatibility
During transmissions, your Icom radio generates RF energy that can possibly
cause interference with other devices or systems. To avoid such interference,
turn off the radio in areas where signs are posted to do so. DO NOT operate
the transmitter in areas that are sensitive to electromagnetic radiation such as
hospitals and blasting sites.
Occupational/Controlled Use
The radio transmitter is used in situations in which persons are exposed as
consequence of their employment provided those persons are fully aware of
the potential for exposure and can exercise control over their exposure.
FOREWORD
SUPPLIED ACCESSORIES
Thank you for purchasing this Icom product. The IC-A24/A6
VHF AIR BAND TRANSCEIVER is designed and built with
Icom’s state of the art technology and craftsmanship. With
proper care this product should provide you with years of
trouble-free operation.
Accessories included with the transceiver:
Qty.
qAntenna .......................................................................... 1
wBelt clip ........................................................................... 1
eHandstrap ....................................................................... 1
rBattery pack* or battery case........................................... 1
tWall charger* .................................................................. 1
yCarrying case* ................................................................ 1
uHeadset adapter* ............................................................ 1
IMPORTANT
READ ALL INSTRUCTIONS carefully and completely
before using the transceiver.
SAVE THIS INSTRUCTION MANUAL— This in-
* Not supplied, or the shape may be different, depending on the
version.
q
w
e
r
struction manual contains important operating instructions
for the IC-A24/A6.
EXPLICIT DEFINITIONS
t
y
u
WORD
DEFINITION
Personal death, serious injury or an exploRDANGER!
sion may occur.
RWARNING!
CAUTION
NOTE
Personal injury, fire hazard or electric shock
may occur.
Equipment damage may occur.
If disregarded, inconvenience only. No risk
of personal injury, fire or electric shock.
ii
PRECAUTION
R DANGER! NEVER short the terminals of the battery
pack. Also, current may flow into nearby metal objects, such
as a necklace, etc. Therefore, be careful when carrying with,
or placing near metal objects, carrying in handbags, etc.
R DANGER! Use and charge only specified Icom bat-
tery packs with Icom radios or Icom chargers. Only Icom
battery packs are tested and approved for use with Icom radios or charged with Icom chargers. Using third-party or
counterfeit battery packs or chargers may cause smoke, fire,
or cause the battery to burst.
R WARNING! NEVER hold the transceiver so that the
antenna is very close to, or touching exposed parts of the
body, especially the face or eyes, while transmitting. The
transceiver will perform best if the microphone is 5 to 10 cm
(231⁄32 to 315⁄16 inch) away from the lips and the transceiver is
vertical.
R WARNING! NEVER operate the transceiver with a
source that is DC fused at more than 5 A. Accidental reverse
connection will be protected by this fuse, higher fuse values
will not give any protection against such accidents and the
transceiver will be ruined.
DO NOT allow children to play with any radio equipment
containing a transmitter.
DO NOT operate the transceiver near unshielded electrical blasting caps or in an explosive atmosphere.
DO NOT use or place the transceiver in direct sunlight or
in areas with temperatures below –10°C (+14°F) or above
+60°C (+140°F).
Even when the transceiver power is OFF, a slight current still
flows in the circuits. Remove the battery pack or case from
the transceiver when not using it for a long time. Otherwise,
the battery pack or installed dry cell batteries will become
exhausted.
headset or other audio accessories at high volume levels.
Hearing experts advise against continuous high volume operation. If you experience a ringing in your ears, reduce the
volume level or discontinue use.
FCC caution: Changes or modifications to this transceiver,
not expressly approved by Icom Inc., could void your authority
to operate this transceiver under FCC regulations. (U.S.A.
only)
CAUTION: NEVER connect the transceiver to an AC
Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incorporated (Japan) in Japan, the United States, the United Kingdom, Germany,
France, Spain, Russia and/or other countries.
outlet or to a power source of more than 11.5 V DC. Such a
connection will damage the transceiver.
iii
CAUTION: NEVER connect the transceiver to a power
TABLE OF CONTENTS
SAFETY TRAINING INFORMATION . .............................................. i
FOREWORD ................................................................................... ii
IMPORTANT . .................................................................................. ii
EXPLICIT DEFINITIONS . ............................................................... ii
SUPPLIED ACCESSORIES . .......................................................... ii
PRECAUTIONS............................................................................... iii
TABLE OF CONTENTS . ................................................................ iv
1 PANEL DESCRIPTION ....................................................... 1 – 6
■ Panel description ................................................................... 1
■ Function display ..................................................................... 5
2 ACCESSORY ATTACHMENT ................................................... 7
3
BASIC OPERATION . ........................................................ 8 – 11
■ Setting a frequency ................................................................ 8
■ Setting a squelch level ........................................................... 8
■ Selecting a weather channel................................................... 8
■ Receiving ............................................................................... 9
■ ANL function .......................................................................... 9
■ Transmitting ............................................................................ 9
■ Time-Out-Timer function (Australia version only) ................... 9
■ Low battery indicator . .......................................................... 10
■ Recall function ..................................................................... 10
■ Setting weather alert function............................................... 11
■ Accessing the 121.5 MHz emergency frequency . ............... 11
■ Lock function ........................................................................ 11
■ Side tone function ................................................................ 11
■ Setting beep tone . ............................................................... 11
4 MEMORY OPERATION . ................................................. 12 – 15
■ Memory channel selection ................................................... 12
■ Transferring memory contents . ............................................ 12
■ Programming a memory channel . ....................................... 13
■ Memory names .................................................................... 14 ■ Clearing the memory contents ............................................. 14 5SCAN OPERATION ........................................................ 16 – 17
■ Scan types ........................................................................... 16
■ COM band scan ................................................................... 16
■ Memory scan ....................................................................... 16
■ Weather channel scan (U.S.A. version only)............................. 17
■ “TAG” channels . .................................................................. 17
6VOR NAVIGATION (IC-A24 only).................................... 18 – 24
■ VOR indications ................................................................... 18
■ VOR functions ...................................................................... 19
■ Flying to a VOR station ........................................................ 20 ■ Entering a desired course .................................................... 22
■ Crosschecking position ........................................................ 22 ■ Duplex operation (U.S.A. version only) .................................... 24
7BATTERY PACKS ........................................................... 25 – 28
■ Battery charging . ................................................................. 25
■ Battery cautions ................................................................... 25
■ Optional battery case ........................................................... 26
■ Optional battery chargers .................................................... 27
8 CLONING ................................................................................ 29
9 TROUBLESHOOTING ............................................................ 30
10 SPECIFICATIONS ................................................................... 31
11 OPTIONS ................................................................................ 32
12 OPTIONAL HEADSET CONNECTION . ................................. 33
iv
1
PANEL DESCRIPTION
■Panel description
IC-A24
WX-ALERT
e
r
t
y
u
i
w
o
!7
IC-A6
q
!7
!6
!5
Speaker
WX-ALERT
!0
!1
!2
!3
Microphone
!4
!7
1
PANEL DESCRIPTION
qBACKLIGHT SWITCH [LIGHT]
Turns the backlight for display and keypad ON or OFF.
wPTT SWITCH [PTT] (p. 9)
Hold down to transmit; release to receive.
• “
” appears on the function display while transmitting.
eVOLUME [VOL] (p. 9)
Adjusts the audio level.
rTUNING DIAL [DIAL] (pp. 8–12)
➥ R otate [DIAL] to select the desired frequency, WX
channel number, BANK number and memory channel.
➥ Rotate [DIAL] to set the squelch level and beep tone
level.
tANTENNA CONNECTOR [ANT] (p. 7)
Connect the supplied antenna here.
y RECALL CHANNEL UP/DOWN KEYS [Ω]/[≈] (p. 10)
➥ Push to enter the recall function mode.
➥ Push to call the stored frequency in the recall
mode.
➥ Push
, then push [Ω]/[≈] to replace stored
recall frequencies to back or front.
1
uSQUELCH KEY [SQL•WX-ALERT] (p. 8)
➥ P ush [SQL• WX-ALERT], then rotate [DIAL] to
select the squelch level.
1
• 24 squelch levels and squelch open (0) are available.
➥ Push
, then push [SQL•WX-ALERT] to turn
the WX-alert function ON or OFF.
iPOWER SWITCH [PWR] (pp. 9, 29)
➥ Hold down for 2 sec. to turn the power ON or
OFF.
➥ While holding down [MR•MW], push [PWR] to
enter the cloning function mode.
oEXTERNAL SPEAKER AND MICROPHONE JACKS
[MIC/SP] (p. 33)
If desired, connect an OPC-499 HEADSET ADAPTER and
headset.
!0FUNCTION KEY [
]
Push to call up the function indicator, “ ”, then
push another key to access its secondary function.
• “
” appears for 3 sec. after
is pushed; at this time
pushing
again cancels the indication.
NOTE: In general, “ ” disappears when another key is pushed to activate a secondary
function. However, some keys which have
more than one secondary function, (such as
[DUP]), do not cancel “ ”. In this case, “ ”
automatically disappears after 3 sec.
2
1
PANEL DESCRIPTION
!1CLEAR KEY [CLR•DEL] (pp. 8–17)
➥ Push to return to the frequency mode, when
memory channel, WX channel, 121.5 MHz,
squelch level setting or beep tone setting is selected.
➥ Push
, then hold down [CLR•DEL] to delete
a recall frequency data.
➥ Push to clear the entered comment of memory
name while programming.
➥ Push to stop the scan function to return to the
frequency mode while the scan function is operating.
!2ANL KEY [ANL•SCAN] (pp. 9, 16, 17)
➥ Push to turn the ANL function ON or OFF.
➥ Push
, then push [ANL•SCAN] to start the
scan function.
!6ENTER KEY [ENT•WX] (pp. 8, 14)
➥ Push to store the numeral input. Enters consecutive zero digits. (p. 8)
➥ P ush
, then push [ENT• WX ] to enter the
weather channel selection mode (U.S.A. version only). (p. 8)
➥ Push to program the memory name. (p. 14)
NOTE: S
ome functions may not be available depending on
versions. Ask your authorized dealer for details.
• DC POWER CONNECTION
R WARNING!
• N EVER modify the CP-20. A modification
could cause a fire or electrocution.
IC-A24/A6
• NEVER cut or fray the CP-20’s power cable
when disconnecting/connecting the CP-20
from/to the cigarette lighter socket.
!3EMERGENCY KEY [121.5 MHz] (p. 11)
P ush for 2 sec. to select the 121.5 MHz emergency frequency.
CP-20 (for 11 24 V)
(optional)
!4DC POWER JACK
Connect the AC adapter or optional cable, to charge the
battery pack or to operate by external power. (see right illustration)
!5MEMORY MODE KEY [MR•MW] (pp. 12–15)
➥ Push to select the memory channel mode.
➥ Push
, then push [MR•MW] to program the
contents into the memory channels.
3
To [DC 11V]
Wall charger
To the cigarette
lighter socket
To AC outlet
The shape may
differ depending
on the version.
PANEL DESCRIPTION
!7DIGIT KEYS
➥ Input the specified digit during frequency input, memory channel selection, etc.
➥ In addition, each key has one or more secondary functions after pushing
as follows:
Push
, then push [0•BANK], and rotate [DIAL]
to select the memory BANK number during memory mode operation. (p. 12)
Push
, then push [1•DVOR] to select the DVOR
display from the CDI display in the NAV band. (p.
19)*1
➥ P ush
, then push [2• TO ] to change the
course indicator characteristics to a “TO” flag in
the DVOR display in the NAV band. (p. 19)*1
➥ C orrects the deviation while using the “TO”
flag.*1
➥ Push
, then push [3•FROM] to change the
course indicator characteristics to a “FROM”
flag in the DVOR display in the NAV band. (p.
19)*1
➥ Corrects the deviation while using the “FROM”
flag.*1
1
Push
, then push [5•DUP-W] to set the duplex
frequency in the NAV band for U.S.A. version only.
(p. 24)*1
1
Push
, then push [6•DUP] to turn the duplex
function ON and OFF in the NAV band for U.S.A.
version only. (p. 24)*1
Push
, then push [7•
] to turn the key lock
function ON and OFF. (p. 11)
ush
P
, then push [8• BEEP ] to turn the beep
tone setting mode ON. (p. 11)
• Adjustable level; 0 to 9
ush
P
, then push [9•TAG] to set the displayed
memory or weather channel as a “TAG” channel.
(p. 17)
*1 These functions are available on the IC-A24 only.
Push
, then push [4•CDI] to select the CDI display from the CDI display in the NAV band. (p.
19)*1
4
1
PANEL DESCRIPTION
■Function display
qFUNCTION INDICATOR (p. 2)
Appears when
is pushed.
wTX INDICATOR (p. 9)
Appears while transmitting.
q
w
e
r
t
y
eRX INDICATOR (p. 9)
Appears when receiving a signal, or when the squelch
opens.
u
!5
i
!4
o
!1
!3
!2
!1 !0
rDUPLEX INDICATOR (IC-A24 only) (p. 24)
➥“DUP” appears when the duplex function is activated in
the NAV mode.
➥“DUP” blinks while setting the duplex frequency.
tLOW BATTERY INDICATOR (p. 10)
➥ Appears when the battery is nearing exhaustion. The
attached battery pack requires recharging.
➥ Appears and flashes when battery replacement is necessary.
yLOCK INDICATOR (p. 11)
Appears while the lock function is in use.
uFREQUENCY DISPLAY (pp. 8, 14)
➥ Shows the operating frequency.
➥ S hows the channel name when the memory name
function is selected.
5
PANEL DESCRIPTION
1
1
iTAG CHANNEL INDICATOR (p. 17)
“
” appears when the selected memory channel is set
as a TAG channel.
oMEMORY CHANNEL INDICATOR (pp. 12–15)
Shows the selected memory channel number.
!0MEMORY BANK NUMBER INDICATOR (p. 12)
Shows the selected memory bank number.
!4COURSE INDICATORS (IC-A24 only) (p. 19)
➥ Indicates where your aircraft is located on a VOR radial
in the DVOR mode.
➥ Indicates where your desired course is located on a
VOR radial in the CDI mode.
!5TO-FROM INDICATOR (IC-A24 only) (p. 19)
Indicates whether the VOR navigation information is
based on a course leading to the VOR station or leading
away from the VOR station.
!1OVERFLOW INDICATOR (IC-A24 only) (pp. 18–22)
Appears when the deviation between the desired course
and flying course is over 10 degrees.
!2ANL INDICATOR (p. 9)
Appears while the ANL (Automatic Noise Limiter) function
is in use.
!3COURSE DEVIATION NEEDLES (IC-A24 only)
(pp. 18–22)
Indicates every 2 degree deviation between the desired
course and your actual flying course every 2 degrees.
6
2
ACCESSORY ATTACHMENT
D Antenna
CAUTION: DO NOT transmit without an antenna. Otherwise the transceiver may be damaged.
Insert the supplied antenna into the antenna connector and
screw down the antenna as shown below.
D Belt clip
Conveniently attaches to your belt.
Attach the belt clip with the supplied screws as below.
NOTE: Use the supplied screws only.
Supplied screws
D Battery pack replacement
Before replacing the battery pack, push [PWR] for 2 sec. to
turn the power OFF.
Slide the battery release button forward, then pull the battery
pack upward with the transceiver facing away from you.
NOTE: About water resistant construction
The water resistant construction provides reliable operation in wet conditions.
• Equivalent to IPX4 of corresponding international standard IEC 60529 (2001).
7
BASIC OPERATION
3
■Setting a frequency
■Setting a squelch level
ï Using keypad
The transceiver has a noise squelch circuit to mute undesired noise while receiving no signal.
qPush [SQL•WX-ALERT], then rotate [DIAL] to select the
squelch level.
qP ush [PWR] for 2 sec. to turn power ON, then push
[CLR•DEL] to select the frequency mode when memory
CH number or WX CH number appears on the function
display.
wPush 5 appropriate digit keys to input the frequency.
• Push [1•DVOR] as the 1st digit.
• When a wrong digit is input, push [CLR•DEL] to clear,
then repeat step w again.
• Push [ENT•WX] to enter consecutive zero digits.
• Only [2•TO], [5•DUP-W], [7•
] and [0•BANK] can be entered as the 5th and final digit.
[EXAMPLE]
• 111.225 MHz: Push
• 117.250 MHz: Push
• 120.000 MHz: Push
• 125.300 MHz: Push
ï Using the tuning dial
qP ush [PWR] for 2 sec. to turn power ON, then push
[CLR•DEL] to select the frequency mode when memory
CH number or WX CH number appears on the function
display.
wRotate [DIAL] to set the desired frequency.
• To select the 1 MHz tuning step, push
, then rotate
[DIAL]. Push
again to return to the normal tuning.
2
3
• ‘SQL--0’ is open squelch and ‘SQL--24’ is tight squelch.
• “
” appears while the squelch is open.
wPush [SQL•WX-ALERT] or [CLR•DEL] to exit the squelch
set mode.
■Selecting a weather channel
(U.S.A. version only)
The U.S.A. version has VHF marine WX (weather) channel
receiving capability for flight planning.
qP ush
, then push [ENT• WX ] to select WX channel
mode.
• “WX--” and the previously selected
channel number appears.
wRotate [DIAL] to select the desired WX channel.
e
Push [CLR•DEL] to exit the WX
channel mode and return to frequency mode.
8
3
BASIC OPERATION
■Receiving
■Transmitting
qPush [PWR] for 2 sec. to turn the power ON.
wPush [SQL•WX-ALERT], then rotate [DIAL] counterclockwise to select the squelch level 0.
eRotate [VOL] to adjust the audio level.
r
Push [SQL•WX-ALERT], then rotate [DIAL] clockwise until
the noise is muted.
• “
NOTE: To prevent interference, listen on the frequency
before transmitting. If the frequency is busy, wait until the
channel is clear.
” indicator disappears.
tSet the desired frequency using [DIAL] or keypad.
yWhen a signal is received on the set frequency:
CAUTION: Transmitting without an antenna may damage
the transceiver.
• “
” indicator appears.
• Squelch opens and audio is emitted from the speaker.
When [SQL] setting is too “tight,” squelch may not open for
weak signals. To receive weaker signals, loosen the squelch.
qSet the desired frequency in COM band using [DIAL] or
keypad.
• COM band frequency range: 118.00–136.975 MHz
wHold down [PTT] to transmit.
• “
” indicator appears.
eSpeak into the microphone at a normal voice level.
• DO NOT hold the transceiver too close to your mouth or speak
too loudly. This may distort the signal.
rRelease [PTT] to return to receive.
■ANL function
While receiving, the ANL (Automatic Noise Limiter) function
reduces noise components such as those that are caused
by engine ignition systems while receiving.
• Push [ANL•SCAN] to turn the ANL function ON/OFF.
“
9
” appears on the display while the ANL function is ON.
■Time-Out-Timer function
(Australia version only)
To prevent prolonged transmission, and according to regulatory requirements, the IC-A6 (Australia version only) has a
Time-Out-Timer function. This timer cuts a transmission OFF
after 3 minutes of continuous transmission.
BASIC OPERATION
■Low battery indicator
Low battery indicator appears
when the battery power has decreased to a specified level. The
attached battery pack requires
recharging.
3
D Deletes the stored recall channel
Low battery indicator
q Push
w Push
or
to select the channel to be deleted.
, then push [CLR•DEL] for 2 sec. to delete it.
• (e.g.) When the “r0” recall channel which is stored 120.450 MHz
is deleted, the “r1” recall channel which is stored 123.450 MHz
move up to “r0”.
3
■Recall function
The recall function stores the last 10 frequencies used.
The function stores frequencies when the frequency is programmed and transmitted on (except memory, weather and
emergency channels).
D Recalling the stored frequencies
➥ Push
➥ Push
D Replaces the stored recall channel
q P ush
or
to select the recall channel to be replaced.
w Push
, then push
or
to replace it.
to recall the 1st stored frequency.
to recall the 10th stored frequency.
• Replaces the selected channel into the previous channel when
is pushed and then
is pushed.
• Replaces the selected channel into the next channel when
is pushed and then
is pushed.
• (e.g.) To replace “r0” which is stored as 121.375 MHz into “r1”,
push
, then push
.
Recall number appears.
• Recall number rotation
: Push
: Push
NOTE: When the number of stored frequencies reaches
10, channels are automatically deleted as needed, in the order they were entered, beginning the oldest.
10
3
BASIC OPERATION
■ Setting weather alert function
■Side tone function
An NOAA broadcast station transmits a weather alert tone
before any important weather announcements. When the
weather alert function is turned ON, the transceiver detects
the alert, and sounds a beep tone until the transceiver is operated. The previously selected (used) weather channel is
checked any time during standby, or while scanning.
• P ush
, then push [SQL• WX-ALERT ] to turn ON the
weather alert function (displays “
” for 1 second)/
OFF (displays “
” for 1 second).
When using an headset (other manufacture’s products), the
transceiver outputs your transmitted voice to the headset for
monitoring. Connect the optional headset with the transceiver when using this function (OPC-499 HEADSET
ADAPTER and headset are required) (p. 33).
■Accessing the 121.5 MHz
emergency frequency
The IC-A24 and IC-A6 can set to the 121.5 MHz emergency
frequency quickly. This function can be activated even when
the key lock function is in use.
qPush [121.5] for 2 sec. to select the emergency frequency.
wPush [CLR•DEL] to exit the emergency frequency.
■Lock function
The lock function prevents accidental frequency changes
and accidental function activation.
qPush
, then push [7• ] to turn the lock function ON.
• “ ” appears.
wTo turn the function OFF, repeat step q above.
• “ ” disappears.
11
IMPORTANT: Set the monitoring level to ‘ST--0’ when using
an optional HM-173 SPEAKER MICROPHONE, otherwise,
your voice will be heard from the speaker during transmitting.
D Setting the side tone level
qPush [PTT] to turn the transmit mode ON.
wDuring transmit mode, rotate [DIAL] to adjust the monitoring level.
• ‘ST--0’ is OFF and ‘ST--10’ is maximum level.
R WARNING! NEVER operate the transceiver with a
headset at high volume levels for long period. A ringing in
your ears may occur. If so, reduce the monitor level or
discontinue use.
■Setting beep tone
If desired, the beep tone, which sounds at the push of a
switch, can be set.
qP ush
, then push [8• BEEP ] to enter the beep tone
setting mode.
w
Rotate [DIAL] to set the beep level.
• ‘BEP-- 0’ is OFF and ‘BEP-- 9’ is maximum level.
• 2 beeps sound tone to verify set beep tone level.
ePush [CLR•DEL] to exit the beep tone setting mode.
MEMORY OPERATION
■Memory channel selection
The transceiver has 200 memory channels for storage of
often-used frequencies, along with 6-character notes.
qPush [MR•MW] to select the memory mode.
• The memory BANK number and memory CH number appears.
Using [DIAL]:
wPush
, then push [0•BANK], and rotate [DIAL] to select
the desired memory BANK number. Push
and push
[0•BANK] (or push [CLR•DEL]) to exit the BANK selection
mode.
eRotate [DIAL] to select the desired memory CH number.
• I f no memory CH is programmed in the selected BANK, no
memory CH selection is available.
4
■Transferring memory
contents
This function transfers a memory channel’s contents into the
frequency mode. This is useful when searching for signals
around a memory channel’s frequency.
3
4
qPush [MR•MW] to select memory mode.
wS elect the desired memory channel to be transferred
using [DIAL] or keypad.
eP ush
, then push [MR• MW ] to transfer the memory
channel’s contents into the frequency mode.
• B ANK number and memory CH number disappears as frequency mode is automatically selected and the memory contents are transferred.
Using the Keypad:
wPush
, and push [0•BANK], then push the appropriate
digit key ([0•BANK] to [9•TAG]) to select the desired memory BANK number, then push
and push [0•BANK] (or
push [CLR•DEL]) to exit the BANK-selection mode.
ePush 2 appropriate digit key (00 to 19) to select the desired memory CH number.
• I f no memory CH is programmed in the selected BANK, no
memory CH selection is available.
Memory mode
Frequency mode
NOTE: Comments appear first when programmed, however, the transceiver can be programmed by your dealer
to show the operating frequency first. Push [MR•MW] to
display the comment in this case.
12
4
MEMORY OPERATION
■Programming a memory
channel
• EXAMPLE: Programming WX-05* into memory BANK 3/
memory channel 9.
Push
qPush [CLR•DEL] to select the frequency mode, if necessary.
wSelect the desired frequency.
• Push
, then push [ENT•WX] to select a weather channel.*
• Set the desired frequency or weather channel* using [DIAL] or
keypad.
ePush
, then push [MR•MW] to enter the memory writ-
or
Push
The transceiver has 200 (20 CH × 10 BANK) memory channels for storage of often-used frequencies.
Push
Push
ing mode.
• “M”, Memory BANK and memory channel number are blink.
Push
(orrotate[DIAL])
rR otate [DIAL] to select the desired memory channel
number.
Push
or
• Push
, then push [0•BANK], and rotate [DIAL] to select the
BANK number if desired.
• Push [CLR•DEL], [ENT•WX] or push
then push [0•BANK] to
exit the BANK selection mode.
tPush [ENT•WX] to program the information into the chan-
nel and return to the frequency mode.
*Weather channel: U.S.A. version only.
13
Push
or
(orrotate[DIAL])
Push
MEMORY OPERATION
4
■Memory names
ï Programming memory names
Key Character
The memory channel can display a 6-character name instead of the programmed frequency.
1
1, Q, Z
2
2, A, B, C
3
3, D, E, F
4
4, G, H, I
5
5, J, K, L
6
6, M, N, O
qIn the frequency mode, rotate [DIAL] to select the desired
frequency in the frequency mode.
wPush
, then push [MR•MW] to program the contents
into the selected memory channel.
eRotate [DIAL] to select the desired memory channel to be
programmed.
7
7, P, R, S
8
8, T, U, V
9
9, W, X, Y
ENT
Program
0
0, space, -
Character
4
NOTE: When programming the memory name to the programmed memory channel do the following.
qFollow the same steps as in “Transferring memory contents” (see p. 12).
wFollow steps w–y in “Programming memory names”
(see left column).
• Push
, then push [0•BANK], and rotate [DIAL] to select the
BANK number, if desired. Push [CLR•DEL] to exit the BANK selection mode.
rPush [MR•MW] to enter the memory name programming
mode.
Key Character Key
• “-- -- -- -- -- -- ” appears on the display.
tPush the appropriate digit key several times to select the
desired character, as listed to the right.
■Clearing the memory contents
Unwanted memory channels can be cleared.
• To erase a character, overwrite with a space (displayed as _).
• To move the cursor forwards or backwards, use [DIAL].
yPush [ENT•WX] to program the name.
• The memory name stops flashing.
• When no name is programmed, the display shows the operating frequency.
• To clear the entered memory names, push [CLR•DEL] before
pushing [ENT•WX].
qSelect the memory channel to be cleared.
wPush
, then hold down [CLR•DEL] for 1 sec.
• “-- -- -- -- -- --” appears momentarily, then the next selectable
channel appears.
14
4
MEMORY OPERATION
• EXAMPLE: Programming 125.000 MHz into memory BANK 1/ memory channel 17 with “AIR-23” as a comment.
Push
Push
Push
(orrotate[DIAL])
Push
Push
(orrotate[DIAL])
Push
Push
Push
Push
Push
Push
NOTE: Push
, then push [0• BANK], and then rotate
[DIAL] to select the BANK number, if desired. Push
[CLR•DEL] to exit the BANK selection mode.
15
SCAN OPERATION
5
■Scan types
■COM band scan
The U.S.A. version has 3 scan types to suit your needs. The
non-U.S.A. versions have 2 scan types.
qPush [CLR•DEL] to select the frequency mode.
wP ush [SQL• WX-ALERT ], then rotate [DIAL] to set the
squelch level to the point where noise is just muted.
ePush
, then push [ANL•SCAN] to start the scan.
COM BAND SCAN
136.975 Repeatedly scans
MHz a l l f r e q u e n c i e s
118.00
MHz
108.00
MHz
o ve r t h e e n t i r e
COM band.
Scan
Jump
• 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].
4
5
■Memory scan
MEMORY SCAN
non-TAG channel
Mch 2
Mch 4
Mch 1
Mch 19
Mch 6
Mch 7
Mch 10
Mch 8
non-TAG
channel
Repeatedly scans all
selected memory bank’s
“TAG” memor y channels. Used for checking
often-used channels
and bypassing usually
busy channels such as
control-tower frequencies.
WEATHER CHANNEL SCAN
Repeatedly scans all “TAG” weather channels. Weather
channels are available in the U.S.A. version only.
qPush [MR•MW] to select the memory mode.
• Push
, then push [0•BANK], and rotate [DIAL] to select the
BANK number, if desired. Push [CLR•DEL] to exit the BANK selection mode.
wP ush [SQL• WX-ALERT ], then rotate [DIAL] 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].
NOTE: Program 2 or more memory channels to start the
memory scan.
16
5
SCAN OPERATION
■Weather channel scan
(U.S.A. version only)
qPush
, then push [ENT•WX] to select a weather channel.
wSet the squelch to the point where noise is just muted.
ePush
, then push [ANL•SCAN] to start the scan.
■“TAG” channel setting
Memory and weather channels* can be specified to be
skipped for the memory and weather channel* scans respectively. The “TAG” channel function is only available during the scan operation.
Push
then
• 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].
Appears the “TAG” indicator.
Memor y channel 15 is
scanned during memory
scan.
Memor y channel 15 is
skipped during scan.
qPush [MR•MW] to select the memory mode; or, push
,
then push [ENT•WX] to select a weather channel.*
wSelect the desired memory channel to be a “TAG” channel.
• Push
, then push [0•BANK], and rotate [DIAL] to select the
BANK number, if desired. Push [CLR•DEL] to exit the BANK selection mode.
ePush
, then push [9•TAG] to set a “TAG.”
• “TAG” appears.
• Non-“TAG” channels are skipped during scan.
rTo cancel the “TAG” setting, repeat the above steps.
*Weather channel: U.S.A. version only.
17
VOR NAVIGATION (IC-A24 ONLY)
6
■VOR indicators
NAV BAND (108.000 117.975 MHz)
COM BAND
(118.000 136.975 MHz)
DVOR MODE
To-from flag
indicator
Course indicator
Push [F], then push [1 DVOR].
5
6
Push [F], then push [4 CDI].
CDI MODE
General VOR equipment
Course indicator
To-from flag indicator
214
FROM
Two-degree deviation
marks
Course deviation
needle
Function display of the IC-A24
Course
indicator
34
To-from flag indicator
Course deviation needles
Overflow indicator
18
6
VOR NAVIGATION (IC-A24 ONLY)
■VOR functions
D To select the CDI mode
To show the deviation between your flying course and the
desired course, push
, then push [4•CDI] to select the
CDI mode.
D ‘TO’ or ‘FROM’ flag selection
The to-from flag indicators indicate whether the VOR navigation information is based on a course leading to the VOR
station or leading away from the VOR station.
Push
, then push [3•FROM] or [2•TO] to change the flag
from ‘TO’ to ‘FROM’ or vice versa, respectively.
Operating frequency can not be
changed.
Each course deviation arrow
indicates a two-degree deviation.
Course indicator is fixed, but it
can be changed with the tuning
[DIAL] or keypad.
NOTE:
D To select the DVOR mode
• When using the ‘TO’ flag and passing through the VOR station,
the ‘TO’ flag changes to the ‘FROM’ flag automatically.
• When turning power ON, the ‘FROM’ flag is selected automatically.
When 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.
Operating frequency can not be
changed.
Course deviation needle does not
appear.
Course indicator shows your
direction to (or from) the VOR
station.
19
D Selecting the next VOR station when using
CDI mode (when using the course deviation needle)
qPush
, then push [1•DVOR] to select the DVOR mode.
wPush the keypad or rotate [DIAL] to set the next VOR station’s frequency.
ePush
, then push [4•CDI] to select the CDI mode.
• Select ‘TO’ or ‘FROM’ flag, if desired.
VOR NAVIGATION (IC-A24 ONLY)
■Flying to a VOR station
The 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
station.
• 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 VOR station, or select the ‘FROM’ flag when flying away from the VOR station.
• Push
, then push [2•TO] to select ‘TO’.
• Push
, then push [3•FROM] to select ‘FROM’.
ePush
, then push [4•CDI] to select the CDI (Course
Deviation Indicator) mode.
6
rThe course deviation needle appears when your aircraft
is off course from the VOR station.
• ‘Ω’ or ‘≈’ appears to indicate your aircraft is off course to the
right or left, respectively. Correct your course until ‘Ω’ or ‘≈’ disappears. Each arrow represents a two-degree deviation.
tPush
, then push [1•DVOR] to exit the CDI mode.
VOR INDICATOR NOTE
‘loc’ appears on the function display as shown below when
a localizer signal is received.
6
However, the function display does not indicate additional
information about the localizer signal.
• The course indicator shows ‘OF’ when the desired VOR signal
cannot be received.
NOTE: When the CDI mode is selected, the operating frequency cannot be changed. To set the operating frequency, select the DVOR mode in advance.
NOTE: For only the U.S.A. version
IC-A24’s VOR and CDI Navigation features are supplemental aids to navigation only, and are not intended to be
a substitute for accurate (primary) VOR/CDI or landing
service equipment.
20
6
VOR NAVIGATION (IC-A24 ONLY)
THE AIRCRAFT IS ON COURSE
123.65
VORTAC
SEATTLE
116.8 Ch 115 SEA
300
290
280
270
330 340
350
310 320
0
N
10
20
30
40
260
250
50
60
240
230
ed
esir
D
g 40
VOR
station
220
70
80
210
200
190
adin
he
raft
Airc
THE AIRCRAFT IS OFF COURSE
rse
cou
123.65
VORTAC
SEATTLE
116.8 Ch 115 SEA
180
300
290
280
270
170
130
160 150 140
330 340
350
310 320
120
6
NOTE: The course deviation indicator appears when the aircraft is off
course. In this example, the aircraft
is 6 degrees off course to the left.
The pilot must turn more than 6 degrees right to get back on course.
21
uld
sho
raft 40
c
r
i
A
ding
hea
90
100
110
0
N
10
20
30
40
260
4
ding
ft hea
Aircra ourse)
fc
(6 of ourse
nc
w
Flo
250
50
60
240
230
VOR
station
220
70
80
210
be
Magnetic
north
200
190
180
170
130
160 150 140
120
90
100
110
Magnetic
north
VOR NAVIGATION (IC-A24 ONLY)
6
■Entering a desired course
■Crosschecking position
The IC-A24 shows not only the deviation from the VOR station but the deviation from the desired course.
qSelect 2 VOR stations on your aeronautical chart.
wPush the keypad or rotate [DIAL] to set the frequency of
one of the VOR station in the DVOR mode.
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
wPush
, then push [4•CDI] to select the CDI mode.
eSet the desired course to the VOR station using the tuning dial or keypad.
flag.
• ‘Ω’ or ‘≈’ appears on the function display when your aircraft is
off the desired course.
• W
hen your heading is correct, the ABSS function (see right colCourse
umn
for detail) may be useful instead
of course
input.
To-from
flag indicator
indicator
rThe 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 10 degrees to the desired course; if the overflow indicator appears on the left side, select a heading minus 10 degrees.
• The course indicator shows course deviation from the VOR radial. Note the radial you are on.
ePush the keypad or rotate [DIAL] to set the frequency of
the other VOR station in the DVOR mode.
6
• Note the radial from the station you are on.
rExtend the radials from each VOR station on the chart.
Your aircraft is located at the point where the lines intersect.
ABSS FUNCTION
In the 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
, then push [2•TO] while using the
‘TO’ flag; or, push
, then push [3•FROM] while using the
‘FROM’ flag.
q w
e r
q Overflow indicator (left)
w Course deviation needles (left)
e Course deviation needles (right)
r Overflow indicator (right)
22
6
VOR NAVIGATION (IC-A24 ONLY)
EXAMPLE: Entering the desired course bearing 65° to a VOR station.
CROSSCHECKING POSITION
VORTAC
OLYMPIA
113.4 Ch 81 OLM
300
290
280
270
330 340
350
310 320
0
10
20
30
40
260
250
240
230
VOR
station
220
200
190
180
170
130
160 150 140
120
90
100
110
330 340
350
310 320
10
20
30
40
260
50
250
60
240
70
230
80
210
23
300
290
280
270
123.65
VORTAC
SEATTLE
116.8 Ch 115 SEA
0
50
60
VOR
station
220
70
80
210
200
190
180
170
130
160 150 140
120
90
100
110
N
Magnetic
north
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 advance.
D Programming a duplex frequency
qPush [CLR•DEL] to select the frequency mode.
wSet a NAV band frequency using the tuning dial or keypad.
• NAV band frequency range: 108.000–117.975 MHz
, then push [5•DUP-W].
• “DUP” flashes and transmit frequency appears.
ePush
rSet the frequency of the flight service station using the
tuning dial or keypad. When using the tuning dial, push
[ENT•WX] after setting a frequency.
6
D Operating the duplex function
qSet the desired frequency in the NAV band.
• NAV band frequency range: 108.000–117.975 MHz
, then push [6•DUP] to turn the duplex function
wPush
ON.
• “DUP” appears on the function display.
eH old down [PTT] to transmit at the pre-programmed
transmit frequency.
rRelease [PTT] to return to receive.
tPush
, then push [6•DUP] to cancel the function.
6
• “DUP” disappears on the function display.
OTE: A duplex frequency can be programmed into each
N
memory channel independently. Set a duplex frequency
before programming the memory channel, if desired. The
duplex ON/OFF setting can also be programmed into a
memory channel.
• The displayed frequency returns to the NAV band frequency.
EXAMPLE: Programming 123.65 MHz as the transmit frequency in the duplex function.
24
7
BATTERY PACKS
■ Battery charging
■ Battery cautions
Prior to using the transceiver for the first time, the battery
pack must be fully charged for optimum life and operation.
R DANGER! NEVER incinerate used battery packs.
AUTION: To avoid damage to the transceiver, turn the
C
power OFF while charging.
R DANGER! NEVER immerse battery pack in water.
• Recommended temperature range for charging:
+10°C to +40°C (+50°F to +104°F)
• Use the supplied AC adapter on regular charging. NEVER
use another manufacture’s adapters.
• U se the specified chargers (BC-119N, BC-121N and
BC-144N). NEVER use another manufacture’s charger.
R DANGER! NEVER short the terminals of the bat-
CAUTION: NEVER connect DC power to the transceiver
when installing Alkaline batteries. Such a connection will
damage the transceiver.
D Recycling information (U.S.A. only)
The product that you have purchased contains
a rechargeable battery. The battery is recyclable. At the end of its life, under various state and
local laws, it may be illegal to dispose of this
battery into the municipal waste stream. Call
1-800-822-8837 for battery recycling options in
your area or contact your dealer.
Internal battery gas may cause an explosion.
If the battery pack becomes wet, be sure to wipe it dry immediately (particularly the battery terminals BEFORE attaching it to the transceiver).
tery pack. Also, current may flow into nearby metal objects,
such as a necklace, etc. Therefore, be careful when carrying
with, or placing near metal objects, carrying in handbags,
etc.
CAUTION: NEVER insert battery pack/transceiver
(with the battery pack attached) with wet or soiled into the
charger. This may result in corrosion of the charger terminals
or damage to the charger. The charger is not waterproof and
water can easily get into it.
If your battery pack seem to have no capacity even after
being charged, completely discharge them by leaving the
power ON overnight. Then, fully charge the battery pack
again. If the batteries still do not retain a charge (or very little), new battery pack must be purchased.
Turn the transceiver power OFF when charging the battery
pack. Otherwise, the battery pack may not fully charge or
charge properly.
25
BATTERY PACKS
D Regular charging
qAttach the battery pack to the transceiver.
wBe sure to turn the transceiver power OFF.
eConnect the wall charger or optional cable (CP-20) as
shown below.
rCharge the battery pack approximately 8 hours, depending on the remaining power condition.
DO NOT charge the BP-210N more than 12 hours. Otherwise, the BP-210N will be damaged.
R WARNING!
IC-A24/A6 with the
attached battery pack
Turn power OFF
• NEVER modify the CP-20. A modification could cause a fire or electrocution.
• NEVER cut or fray the CP-20’s power
cable when disconnecting/connecting
the CP-20 from/to the cigarette lighter
socket.
7
■ Optional battery case
When using a battery case attached to the transceiver, install 6 × AA (LR6) size Alkaline batteries, as illustrated
below.
q Remove the battery case from the transceiver.
w Install 6 × AA (LR6) size Alkaline batteries.
• Be sure to observe the correct polarity.
CAUTION:
• W hen installing batteries, make sure they are all the
same brand, type and capacity. Also, do not mix new
and old batteries together.
• Keep battery contacts clean. It’s a good idea to clean
battery terminals once a week.
7
CP-20 (for 11 24 V)
(optional)
To [DC 11V] Wall charger
To the cigarette
lighter socket
To AC outlet
The shape may
differ depending
on the version.
26
7
BATTERY PACKS
■ Optional battery chargers
D AD-101 installation
D About AD-99N
The AD-101 charger adapter must be installed into the
BC-119N or BC-121N before battery charging.
Connect the AD-101 charger adapter and the BC-119N/
BC-121N as below (q), then install the AD-101 into the
holder space of the BC-119N or BC-121N with the supplied
screws (w).
q Desktop charger adapter
The adapter (Spacer A) only is required for IC-A24/A6.
When removing the spacer (Spacer B/C), push the latch
carefully with your finger to remove the spacer (Spacer B/C)
from the adapter (Spacer A).
Remove the spacer (Spacer B/C)
from the adapter.
Push the latch
carefully.
10-pin connector
3-pin connector
w
Supplied
screws
27
CAUTION:
• DO NOT push or force the latch with a screw driver, etc.,
to remove it.
• DO NOT bend the latch when the adapter and spacer
are not joined together. This will cause weakening of the
latch plastic.
• Both cases may break the latch and it may not be able
to be reattached.
• BE CAREFUL not to lose the spacer (Spacer B/C) after
removing it from the adapter (Spacer A).
BATTERY PACKS
7
D Rapid charging with the BC-119N+AD-101
D Rapid charging with the BC-121N+AD-101
The optional BC-119N provides rapid charging of the battery
packs. The following are additionally required.
The optional BC-121N allows up to 6 battery packs to be
charged simultaneously. The following are additionally required.
• AD-101 charger adapter.
• An AC adapter (may be supplied with BC-119N depending on versions) or the DC power cable (CP-20).
The adapter (Spacer A) only is required for IC-A24/A6. When removing the spacer (Spacer B/C), push the latch carefully with your
finger to remove the spacer (Spacer B/C) from the adapter
(Spacer A). See p. 27 for details.
Turn power OFF
IC-A24/A6
BP-209N/BP-210N
• Six AD-101 charger adapters.
• An AC adapter (BC-157) or the DC power cable (OPC-656).
The adapter (Spacer A) only is required for IC-A24/A6. When removing the spacer (Spacer B/C), push the latch carefully with your
finger to remove the spacer (Spacer B/C) from the adapter
(Spacer A). See p. 27 for details.
Turn power OFF
BP-209N/BP-210N
AD-99N(supplied
withAD-101)
AD-99N(supplied
withAD-101)
AC adapter
IC-A24/A6
7
8
The AD-101charger adapter
is installed in the slot.
AC adapter
(BC-157:
Purchase
separately)
AD-101charger adapters are
installed in each slot.
DC power cable(OPC-656)
(ConnectwiththeDCpower supply;
13.8V/atleast7A)
28
8
CLONING
Cloning allows you to quickly and easily transfer the
programmed data from one transceiver to another
transceiver, or, data from a PC to a transceiver, using the
optional CS-A24 cloning software.
D Transceiver to transceiver cloning
qC onnect the OPC-474 CLONING CABLE with adapter
plugs to the [SP/MIC] jack of the master and sub transceivers.
• The master transceiver is used to send data to the sub transceiver.
wWhile holding down [MR•MW], push
[PWR] to enter the cloning mode (to
operate the master transceiver
only).
• “CLONE” appears and the transceivers
enter the clone standby condition.
ePush [MR•MW] on the master trans-
ceiver.
• “CL-OUT” appears in the master transceiver’s display.
• “ COURSE DEVIATION NEEDLES”
“COURSE DEVIATION
shows that cloning is taking place
NEEDLES” shows that
cloning is taking place.
• “ CL-IN” appears automatically in the
sub transceiver’s display.
rWhen cloning is finished, turn power OFF, then ON again
to exit the cloning mode.
NOTE: DO NOT transfer the data from a IC-A24 to a ICA6, when the data contains the NAV band data. In such
case, a cloning error may occur.
DCloning using PC
Data can be cloned to and from a PC (Microsoft®, Windows®
98/98SE/Me/2000/XP) using the optional CS-A24 CLONING SOFTWARE and the optional OPC-478 (RS-232C type)
or OPC-478U (USB type) CLONING CABLE. Consult the CSA24 CLONING SOFTWARE HELP file for details.
D Cloning error
NOTE: DO NOT push [ENT•WX] on the sub transceiver
during cloning. This will cause a cloning error.
When the display at right appears, a
cloning error has occurred.
In this case, both transceivers automatically return to the
clone standby condition and cloning must be repeated.
Microsoft and Windows are registered trademarks of Microsoft Corporation in the U.S.A. and other countries.
29
TROUBLESHOOTING
9
If your transceiver seems to be malfunctioning, please check the following points before sending it to a service center.
PROBLEM
No power comes on.
POSSIBLE CAUSE
• The battery is exhausted.
• Bad connection for the battery pack.
• The CP-20’s fuse is blown.
No sound comes from • Squelch level is too deep.
the speaker.
• Volume level is too low.
Transmitting impossible. • WX channels or NAV band is selected.
• The battery is exhausted.
Operating frequency or • Lock function is activated.
memory channel can not
be changed.
Scan does not start.
• All memory channels in the selected bank
are not programmed as “TAG” channels.
• Squelch is open.
• T here is not more than 2 memorized
channels.
No beep sounds.
• Beep tones turned OFF.
When using an optional • The side tone function is activated.
HM-173, your voice
hears from the speaker
during transmitting.
SOLUTION
• Recharge the battery pack.
• Check the connection to the transceiver.
• C heck for the cause, then replace the
CP-20’s fuse to new one.
• Set squelch to the threshold point.
• Set [VOL] to a suitable level.
• Set COM band in frequency mode.
• Recharge the battery pack.
• Push
, then push [7• ].
REF.
pp. 25–28
p. 7
p. 30
p. 8
p. 9
p. 8
pp. 25–28
p. 11
• S et the “TAG” settings of desired p. 17
channels.
• Set the squelch level to tighten.
p. 8
• Program 2 or more memory channels. p. 16
8
9
10
• P ush
, then push [8• BEEP ], and p. 11
rotate [DIAL] to adjust the beep tone
level.
• Push [PTT], then rotate [DIAL] to set the p. 11
monitoring level to ‘ST-0’ (The side tone
function is OFF).
D CP-20 fuse replacement
If the fuse blows or the receiver stops functioning while
operating with the optional CP-20 cigarette lighter cable,
find the source of the problem if possible, and replace the
damaged fuse with a new rated one (FGB 8 A) as shown
right.
Fuse8A
30
10
SPECIFICATIONS
D General
• Modulation distortion*4
• Frequency coverage (MHz) : TX 118.000 to 136.975
RX 108.000 to 136.975*1
WX 161.650 to 163.275*2
• Mode : 6K00A3E
16K0G3E (161.65 to 163.275 MHz)*2
• Channel spacing
: 25 kHz
• Number of memory channels : 200 (20 CH × 10 BANKS)
• Power supply requirement
: S pecified battery packs/case or
11.0 V DC at the external DC jack
• Usable temperature range
: –10˚C to +60˚C (+14°F to +140°F)*3
–10˚C to +50˚C (+14°F to +122°F)*4
• Current drain : Tx 1.5 A typical
Rx 70 mA typical (at stand by)
300 mA typical (at AF maximum)
• Antenna connector
: BNC 50 Ω (nominal)
• Dimensions : 54(W) × 129.3(H) × 35.5(D) mm
(projections not included)
21⁄8(W) × 53⁄32(H) × 113⁄32(D) inch
• Weight : Approximately 180 g (6.35 oz)
(Without the battery pack and antenna.)
D Transmitter
• Output power
• Modulation
• Modulation limiting
• Frequency stability
• Audio harmonic distortion*3
• Hum and noise ratio
• Spurious emissions*3
31
: 5.0 W*3 (3.6 W*4) (PEP) typical
1.5 W*3 (1.0 W*4) (CW) typical
: Low level modulation
: 70 to 100%*3 (85 to 95%*4)
: ±5 ppm
: Less than 10% (at 60% modulation)
: More than 35 dB
: More than 46 dB (except operating
frequency ±62.5 kHz range)
:L
ess than 10% (at 85% ±3 dB modulation)
• Harmonics spurious emissions*4: Less than –26 dBm
• Microphone connector
: 3-conductor 2.5(d) mm (1/10˝)/
more than 100 kΩ
D Receiver
• Receive system
: Double conversion
superheterodyne
• Intermediate frequencies
: 1st 30.05 MHz, 2nd 450 kHz
• Sensitivity VOR (AM 6 dB S/N): –3 dBµ typical
COM (AM 6 dB S/N)*3: –6 dBµ typical
COM (AM 12 dB SINAD)*4: –3 dBµ typical (with CCITT)
WX (FM 12 dB SINAD)*2: –13 dBµ typical
• Squelch sensitivity (Threshold): AM
Less than 0 dBµ
FM
Less than –5 dBµ*2
• Selectivity*3
: 6 dB (More than 7.5 kHz)
60 dB (Less than 25 kHz)
• Spurious response
: AM
More than 60 dB
rejection FM
More than 30 dB*2
• Adjacent channel selectivity*4 : More than 60 dB
• Audio output power
: 500 mW typical (at 10% distortion
with an 8 Ω load, 30% modulation)
• Noise and hum
: More than 40 dB at 30% modulation*3
More than 30 dB*4
• External speaker connector : 3-conductor 3.5 (d) mm (1/8˝)/8 Ω
*1: IC-A24 only. (IC-A6 frequency coverage is from 118.000 to 136.975 MHz.)
*2: U.S.A. version only. *3: Except Australia version. *4:Australia version only.
All stated specifications are subject to change without notice
or obligation.
OPTIONS
D BATTERY CASE AND PACKS
D MICROPHONE
• BP-208N battery case
Battery case for 6 × AA (LR6) Alkaline cells.
• BP-209N Ni-Cd battery pack
7.2 V/1100 mAh Ni-Cd battery pack.
• BP-210N Ni-MH battery pack
7.2 V/1650 mAh Ni-MH battery pack.
• HM-173 speaker microphone
Combination speaker and microphone.
D CHARGERS
• BC-167SA/SD/SC/SV wall charger
The same as supplied with the transceiver.
• BC-119N desktop charger + AD-101 charger adapter
+ BC-145 ac adapter
For rapid charging of battery packs. An AC adapter is supplied with
the charger depending on versions. Charging time: approximately
1.5 to 2 hours.
• BC-121N multi-charger + AD-101 charger adapter (6 pcs.)
+ BC-157 ac adapter
For rapid charging of up to 6 battery packs (six AD-101’s are required) simultaneously. An AC adapter should be purchased separately. Charging time: approximately 1.5 to 2 hours.
• BC-144N desktop charger
For rapid charging of BP-209N (Ni-Cd) and BP-210N (Ni-MH).
Approved Icom optional equipment is designed for optimal
performance when used with an Icom transceiver.
Icom is not responsible for the destruction or damage to an
Icom transceiver in the event the Icom transceiver is used
with equipment that is not manufactured or approved by
Icom.
11
D BELT CLIPS
• MB-103 belt clip
The same as supplied with the transceiver.
• MB-86 swivel belt clip
Belt clip for swivel type.
• MB-96F/96N leather belt hanger
➥MB-96F: Attaches with the supplied belt clip (Fixed type).
➥MB-96N: Belt hanger for swivel type.
D DC CABLES
• CP-20 cigarette lighter cable
➥Charges the battery pack through a cigarette lighter socket*.
➥Operates IC-A24/A6 through a cigarette lighter socket*.
*Both 12 V and 24 V batteries are available.
• OPC-656 dc power cable for BC-121N
Charges the battery pack using 13.8 V power source instead of the
AC adapter for BC-121N.
10
11
12
13
D OTHER OPTIONS
• OPC-499 headset adapter cable
W hen using an optional headset (3rd party products) via the
adapter, the transceiver outputs your transmitted voice to the
headset for monitoring.
• LC-159 carrying case
Helps protect the transceiver from scratches, etc.
Different versions of this radio use different options. Ask
your authorized dealer for details.
32
12
OPTIONAL HEADSET CONNECTION
D OPC-499 (HEADSET ADAPTER) connection
When using a headset (3rd party products) via the OPC-499 HEADSET ADAPTER, the transceiver outputs your transmitted voice
to the headset for monitoring. See “■ Side tone function” (p. 11) when setting the side tone level.
PTT
PTT switch
Use a PTT switch with a
3.5 mm (1/8") diameter
plug, if required.
OPC-499
HEADSET
(Must be purchased
separately)
NOTICE!
IC-A24/A6
33
Some headsets do not work properly when used with the
IC-A24/A6.
Therefore, ask your dealer for details about headsets
compatible for operation with the IC-A24/A6 with the
headset.
MEMO
12
13
34
A-6403D-1EX-i
Printed in Japan
© 2004–2010 Icom Inc.
Printed on recycled paper with soy ink.
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan
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