ICOM orporated 279100 VHF Air Band Transceiver User Manual

ICOM Incorporated VHF Air Band Transceiver

UserManual.wiki >

ICOM orporated >

279100 User Manual >

User manual HTML Version

User manual

INSTRUCTION MANUAL

iA6

iA24

VHF AIR BAND TRANSCEIVER

This device complies with Part 15 of the FCC

Rules. Operation is subject to the condition

that this device does not cause harmful inter-

ference.

IC-A24 IC-A6

FOREWORD

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.

IMPORTANT

READ ALL INSTRUCTIONS carefully and completely

before using the transceiver.

SAVE THIS INSTRUCTION MANUAL— This in-

struction manual contains important operating instructions

for the IC-A24/A6.

EXPLICIT DEFINITIONS

The explicit definitions below apply to this instruction man-

ual.

SUPPLIED ACCESSORIES

Accessories included with the transceiver: Qty.

q Antenna .......................................................................... 1

w Belt clip .......................................................................... 1

e Handstrap ...................................................................... 1

r Battery pack* or battery case .......................................... 1

t Wall charger* .................................................................. 1

y Carrying case* ............................................................... 1

u Headset adapter* ........................................................... 1

* Not supplied, or the shape may be different, depending on the

version.

WORD DEFINITION

RWARNING!

CAUTION

NOTE

Personal injury, fire hazard or electric shock

may occur.

RDANGER! Personal death, serious injury or an explo-

sion may occur.

If disregarded, inconvenience only. No

risk

of personal injury, fire or electric shock.

Equipment damage may occur.

qw e

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 battery 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 (2

to 4 inches

) away from the lips and

the transceiver is vertical.

R WARNING! NEVER operate the transceiver with a 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.

CAUTION: NEVER connect the transceiver to an AC outlet or

to a power source of more than 11.5 V DC. Such a connection will

damage the transceiver.

CAUTION: NEVER connect the transceiver to a power 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 protec-

tion 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 blast-

ing 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 in-

stalled Alkaline cell batteries will become exhausted.

Icom, Icom Inc. and Icom logo are registered trademarks of Icom Incorporated

(Japan) in Japan, the United States, the United Kingdom, Germany, France,

Spain, Russia, Australia, New Zealand, and/or other countries.

FCC caution: Changes or modifications to this transceiver, not

expressly approved by Icom Inc., could void your authority to op-

erate this transceiver under FCC regulations. (U.S.A. only)

PRECAUTION

MISE EN GARDE: Utilisation de 8.33 kHz Espacement des ca-

naux de cette radio est strictement interdite et ne doit pas être

utilisé au Canada.

CAUTION: Use of 8.33 kHz Channel Spacing of this radio is

strictly prohibited and shall not be used in Canada.

iii

TABLE OF CONTENTS

FOREWORD .....................................................................................i

IMPORTANT ...................................................................................... i

EXPLICIT DEFINITIONS ................................................................... i

SUPPLIED ACCESSORIES .............................................................. i

PRECAUTION .................................................................................. ii

TABLE OF CONTENTS ................................................................... iii

1 ACCESSORY ATTACHMENT ....................................................1

2 PANEL DESCRIPTION ..........................................................2–7

■Panel description ....................................................................2

■Function display ......................................................................6

3 BASIC OPERATION .............................................................8–11

■Setting a frequency ................................................................. 8

■Selecting a weather channel (U.S.A. version only) .................8

■Receiving ................................................................................9

■ANL function ...........................................................................9

■Channel spacing setting ..........................................................9

■Setting a squelch level ............................................................9

■ Transmitting .............................................................................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

5 SCAN OPERATION ............................................................16–17

■Scan types ............................................................................16

■COM band scan ....................................................................16

■Memory scan ........................................................................16

■ Weather channel scan (U.S.A. version only) ......................... 17

■“TAG” channel setting ............................................................17

6 VOR NAVIGATION (IC-A24 ONLY) .................................... 18–24

■VOR indicators ...................................................................... 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

7 CLONING .................................................................................25

8 BATTERY PACKS ..............................................................26–29

■Battery cautions .................................................................... 26

■Battery charging ....................................................................26

■Optional battery case ............................................................ 27

■Optional battery chargers .....................................................28

9 SPECIFICATIONS .............................................................. 30–31

10 OPTIONS ..................................................................................32

11 OPTIONAL HEADSET CONNECTION .................................... 33

12 SAFETY TRAINING INFORMATION..................................34–35

13 FOR CLASS A UNINTENTIONAL RADIATORS ..................... 36

14 TROUBLESHOOTING .............................................................37

INDEX .......................................................................................38–39

ACCESSORY ATTACHMENT

ïAntenna

CAUTION: DO NOT transmit without an antenna. Other-

wise the transceiver may be damaged.

Insert the supplied antenna into the antenna connector and

screw down the antenna as shown below.

ïBelt clip

Conveniently attaches to your belt.

Attach the belt clip with the supplied screws as below.

NOTE: Use the supplied screws only.

ïBattery pack replacement

Before replacing the battery pack, push [PWR] for 2 seconds

to turn the power OFF.

Slide the battery release button forward, then pull the battery

pack upward with the transceiver facing away from you.

Supplied screws

NOTE: About water resistant construction

The water resistant construction provides reliable opera-

tion in wet conditions.

• Equivalent to IPX4 of corresponding international stand-

ard IEC 60529 (2001).

2PANEL DESCRIPTION

■Panel description

ert

Microphone

Speaker

WX-ALERT

IC-A24

WX-ALERT

IC-A6

PANEL DESCRIPTION

q BACKLIGHT SWITCH [LIGHT]

Turns the backlight for display and keypad ON or OFF.

w PTT SWITCH [PTT] (p. 9)

Hold down to transmit; release to receive.

• “ ” appears on the function display while transmitting.

e VOLUME [VOL] (p. 9)

Adjusts the audio level.

r TUNING DIAL [DIAL] (pp. 8–12)

➥ Rotate [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.

t ANTENNA CONNECTOR [ANT] (p. 1)

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.

u SQUELCH KEY [SQL•WX-ALERT] (p. 9)

➥ Push [SQL•WX-ALERT], then rotate [DIAL] to

select the squelch level.

• 24 squelch levels and squelch open (0) are available.

➥ Push , then push [SQL•WX-ALERT] to turn

the WX-alert function ON or OFF.

i POWER SWITCH [PWR] (pp. 9, 25)

➥ Hold down for 2 seconds to turn the power ON

or OFF.

➥ While holding down [MR•MW], push [PWR] to

enter the cloning function mode.

o EXTERNAL SPEAKER AND MICROPHONE JACKS

[MIC/SP] (p. 33)

If desired, connect an OPC-499 HEADSET ADAPTER and

headset.

!0 FUNCTION KEY [ ]

Push to call up the function indicator, “ ”, then

push another key to access its secondary func-

tion.

• “ ” appears for 3 seconds after is pushed; at this

time pushing again cancels the indication.

NOTE: In general, “ ” disappears when an-

other 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 seconds

2PANEL DESCRIPTION

!1 CLEAR 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 se-

lected.

➥ 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 op-

erating.

!2 ANL 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.

!3 EMERGENCY KEY [121.5 MHz] (p. 11)

Push for 2 seconds to select the 121.5 MHz emer-

gency frequency.

!4 DC POWER JACK

Connect the AC adapter or optional cable, to charge the

battery pack or to operate by external power. (see right il-

lustration)

!5 MEMORY 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.

!6 ENTER KEY [ENT•WX] (pp. 8, 14)

➥ Push to store the numeral input. Enters con-

secutive zero digits. (p. 8)

➥ Push , then push [ENT•WX] to enter the

weather channel selection mode (U.S.A. ver-

sion only). (p. 8)

➥ Push to program the memory name. (p. 14)

NOTE: Some functions may not be available depending on

versions. Ask your authorized dealer for details.

Wall charger

To [DC 11V]

IC-A24/A6

CP-20 (for 11 24 V)

(optional)

To the cigarette

lighter socket

To AC outlet

The shape may

differ depending

on the version.

• DC POWER CONNECTION

R WARNING!

• 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.

PANEL DESCRIPTION

!7 DIGIT KEYS

➥ Input the speciﬁed digit during frequency input, mem-

ory channel selection, etc.

➥ In addition, each key has one or more secondary func-

tions after pushing as follows:

Push , then push [0•BANK], and rotate [DIAL]

to select the memory BANK number during mem-

ory 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

➥ Push , 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

➥ Corrects 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

Push , then push [4•CDI] to select the CDI dis-

play from the CDI display in the NAV band.

(p. 19)*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

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)

Push , then push [8•BEEP] to turn the beep

tone setting mode ON. (p. 11)

• Adjustable level; 0 to 9

Push , 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.

2PANEL DESCRIPTION

■Function display

q FUNCTION INDICATOR (p. 3)

Appears when is pushed.

w TX INDICATOR (p. 9)

Appears while transmitting.

e RX INDICATOR (p. 9)

Appears when receiving a signal, or when the squelch

opens.

r DUPLEX 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.

t LOW BATTERY INDICATOR (p. 10)

➥ Appears when the battery is nearing exhaustion. The

attached battery pack requires recharging.

➥ Appears and ﬂashes when battery replacement is nec-

essary.

y LOCK INDICATOR (p. 11)

Appears while the lock function is in use.

qw erty

!1!1 !2!3

PANEL DESCRIPTION

u FREQUENCY DISPLAY (pp. 8, 14)

➥ Shows the operating frequency.

➥ Shows the channel name when the memory name

function is selected.

[NOTE]

When you set the IC-A24/A6’s channel spacing to

8.33 kHz, the displayed frequency is different from the ac-

tual operating frequency.

See “VFO CHANNEL ID LIST” for details. (p. 31)

i TAG CHANNEL INDICATOR (p. 17)

“” appears when the selected memory channel is set

as a TAG channel.

o MEMORY CHANNEL INDICATOR (pp. 12–15)

Shows the selected memory channel number.

!0 MEMORY BANK NUMBER INDICATOR (p. 12)

Shows the selected memory bank number.

!1 OVERFLOW INDICATOR (IC-A24 only) (pp. 18–22)

Appears when the deviation between the desired course

and ﬂying course is over 10 degrees.

!2 ANL INDICATOR (p. 9)

Appears while the ANL (Automatic Noise Limiter) function

is in use.

!3 COURSE 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.

!4 COURSE 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.

!5 TO-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.

■Setting a frequency

ïUsing keypad

q Push [PWR] for 2 seconds 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.

w Push 6 appropriate digit keys to input the frequency.

• When operating on only 25 kHz channel spacing, push

5 appropriate digit keys to input the frequency.

• Push [ENT•WX] to enter remaining zero digits.

• When a wrong digit is input, push [CLR•DEL] to clear,

then repeat step w again.

[EXAMPLE]

When operating on either only 8.33 kHz channel spacing

or 8.33 kHz/25 kHz channel spacing.

• 111.225 MHz: Push

• 117.250 MHz: Push

• 118.0083 MHz: Push

• 119.0667 MHz: Push

• 120.0917 MHz: Push

When operating on only 25 kHz channel spacing.

• 111.225 MHz: Push

• 117.250 MHz: Push

• 120.000 MHz: Push

• 125.300 MHz: Push

ïUsing the tuning dial

q Push [PWR] for 2 seconds 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.

w Rotate [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.

■ 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.

q Push , then push [ENT•WX] to select WX channel

mode.

• “WX--” and the previously selected

channel number appears.

w Rotate [DIAL] to select the de-

sired WX channel.

e Push [CLR•DEL] to exit the WX

channel mode and return to fre-

quency mode.

3BASIC OPERATION

BASIC OPERATION

■Receiving

q Push [PWR] for 2 seconds to turn the power ON.

w Push [SQL•WX-ALERT], then rotate [DIAL] counterclock-

wise to select the squelch level 0.

e Rotate [VOL] to adjust the audio level.

r Push [SQL•WX-ALERT], then rotate [DIAL] clockwise until

the noise is muted.

• “ ” indicator disappears.

t Set the desired frequency using [DIAL] or keypad.

y When a signal is received on the set frequency:

• “ ” 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.

■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.

“ ” appears on the display while the ANL function is ON.

■Channel spacing setting

If you set the channel spacing to only 8.33 kHz or only 25

kHz, the optional CS-A24 (#02) cloning software and the

optional cloning cable are required.

See “Cloning using PC” (p. 25) for details.

■Setting a squelch level

The transceiver has a noise squelch circuit to mute unde-

sired noise while receiving no signal.

q Push [SQL•WX-ALERT], then rotate [DIAL] to select the

squelch level.

• ‘SQL--0’ is open squelch and ‘SQL--24’ is tight squelch.

• “ ” appears while the squelch is open.

w Push [SQL•WX-ALERT] or [CLR•DEL] to exit the squelch

set mode.

■ Transmitting

q Set the desired frequency in COM band using [DIAL] or

keypad.

• COM band frequency range: 118.000–136.9917 MHz

w Hold down [PTT] to transmit.

• “ ” indicator appears.

e Speak 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.

r Release [PTT] to return to receive.

CAUTION: Transmitting without an antenna may damage

the transceiver.

NOTE: To prevent interference, listen on the frequency

before transmitting. If the frequency is busy, wait until the

channel is clear.

3BASIC OPERATION

■Low battery indicator

Low battery indicator appears

when the battery power has de-

creased to a speciﬁed level. The

attached battery pack requires

recharging.

■Recall function

The recall function stores the last 10 frequencies used.

The function stores frequencies when the frequency is pro-

grammed and transmitted on (except memory, weather and

emergency channels).

ïRecalling the stored frequencies

➥ Push to recall the 1st stored frequency.

➥ Push to recall the 10th stored frequency.

ïDeletes the stored recall channel

q Push or to select the channel to be deleted.

w Push , then push [CLR•DEL] for 2 seconds 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”.

ïReplaces the stored recall channel

q Push or to select the recall channel to be re-

placed.

w Push , then push or to replace it.

• 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 .

NOTE: When the number of stored frequencies reaches

10, channels are automatically deleted as needed, in the

order they were entered, beginning the oldest.

Low battery indicator

Recall number appears.

: Push

• Recall number rotation

BASIC OPERATION

■Setting weather alert 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 op-

erated. The previously selected (used) weather channel is

checked any time during standby, or while scanning.

•

To turn ON the weather alert function, push , then hold

down [SQL•WX-ALERT] until “ ” is displayed.

•

To turn OFF the function, push , then push [SQL•WX-

ALERT]. (“ ” is displayed for 1 second).

■ 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.

q Push [121.5] for 2 seconds to select the emergency fre-

quency.

w Push [CLR•DEL] to exit the emergency frequency.

■Lock function

The lock function prevents accidental frequency changes

and accidental function activation.

q Push , then push [7• ] to turn the lock function ON.

• “ ” appears.

w To turn the function OFF, repeat step q above.

• “ ” disappears.

■Side tone function

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 trans-

ceiver when using this function (OPC-499 HEADSET

ADAPTER and headset are required) (p. 33).

ïSetting the side tone level

q Push [PTT] to turn the transmit mode ON.

w During transmit mode, rotate [DIAL] to adjust the monitor-

ing 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.

q Push , 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.

e Push [CLR•DEL] to exit the beep tone setting mode.

IMPORTANT: Set the monitoring level to ‘ST--0’ when using

an optional HM-234 sPeaKer MicroPHone, otherwise,

your voice will be heard from the speaker during transmitting.

4MEMORY OPERATION

■Memory channel selection

The transceiver has 200 memory channels for storage of

often-used frequencies, along with 6-character notes.

q Push [MR•MW] to select the memory mode.

• The memory BANK number and memory CH number appears.

Using [DIAL]:

w Push , 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.

e Rotate [DIAL] to select the desired memory CH number.

• If no memory CH is programmed in the selected BANK, no

memory CH selection is available.

Using the Keypad:

w Push , and push [0•BANK], then push the appropriate

digit key ([0•BANK] to [9•TAG]) to select the desired mem-

ory BANK number, then push and push [0•BANK] (or

push [CLR•DEL]) to exit the BANK-selection mode.

e Push 2 appropriate digit key (00 to 19) to select the de-

sired memory CH number.

• If no memory CH is programmed in the selected BANK, no

memory CH selection is available.

NOTE: Comments appear first when programmed, how-

ever, the transceiver can be programmed by your dealer

to show the operating frequency first. Push [MR•MW] to

display the comment in this case.

■ 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.

q Push [MR•MW] to select memory mode.

w Select the desired memory channel to be transferred

using [DIAL] or keypad.

e Push , then push [MR•MW] to transfer the memory

channel’s contents into the frequency mode.

• BANK number and memory CH number disappears as fre-

quency mode is automatically selected and the memory con-

tents are transferred.

Memory mode Frequency mode

MEMORY OPERATION

■ Programming a memory channel

The transceiver has 200 (20 CH × 10 BANK) memory chan-

nels for storage of often-used frequencies.

q Push [CLR•DEL] to select the frequency mode, if neces-

sary.

w Select the desired frequency.

• Push , then push [ENT•WX] to select a weather channel.*

• Set the desired frequency or weather channel* using [DIAL] or

keypad.

e Push , then push [MR•MW] to enter the memory writ-

ing mode.

• “M”, Memory BANK and memory channel number are blink.

r Rotate [DIAL] to select the desired memory channel

number.

• 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.

t Push [ENT•WX] to program the information into the chan-

nel and return to the frequency mode.

*Weather channel: U.S.A. version only.

(or rotate [DIAL])

Push

• EXAMPLE: Programming WX-05* into memory BANK 3/

memory channel 9. 2

4MEMORY OPERATION

■Memory names

ïProgramming memory names

The memory channel can display a 6-character name in-

stead of the programmed frequency.

q In the frequency mode, rotate [DIAL] to select the desired

frequency in the frequency mode.

w Push , then push [MR•MW] to program the contents

into the selected memory channel.

e Rotate [DIAL] to select the desired memory channel to be

programmed.

• Push , then push [0•BANK], and rotate [DIAL] to select the

BANK number, if desired. Push [CLR•DEL] to exit the BANK se-

lection mode.

r Push [MR•MW] to enter the memory name programming

mode.

• “-- -- -- -- -- -- ” appears on the display.

t Push the appropriate digit key several times to select the

desired character, as listed to the right.

• To erase a character, overwrite with a space (displayed as _).

• To move the cursor forwards or backwards, use [DIAL].

y Push [ENT•WX] to program the name.

• The memory name stops ﬂashing.

• When no name is programmed, the display shows the operat-

ing frequency.

• To clear the entered memory names, push [CLR•DEL] before

pushing [ENT•WX].

NOTE: When programming the memory name to the pro-

grammed memory channel do the following.

q Follow the same steps as in “Transferring memory con-

tents” (see p. 12).

w Follow steps w–y in “Programming memory names”

(see left column).

■Clearing the memory contents

Unwanted memory channels can be cleared.

q Select the memory channel to be cleared.

w Push , then hold down [CLR•DEL] for 1 second.

• “-- -- -- -- -- --” appears momentarily, then the next selectable

channel appears.

Key Character Key Character Key Character

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

7 7, P, R, S 8 8, T, U, V 9 9, W, X, Y

ENT Program 0 0, space, -

MEMORY OPERATION

Push

Push Push

(or rotate [DIAL])

• EXAMPLE: Programming 125.000 MHz into memory BANK 1/ memory channel 17 with “AIR-23” as a comment.

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.

5SCAN OPERATION

■Scan types

The U.S.A. version has 3 scan types to suit your needs. The

non-U.S.A. versions have 2 scan types.

■COM band scan

q Push [CLR•DEL] to select the frequency mode.

w Push [SQL•WX-ALERT], then rotate [DIAL] to set the

squelch level to the point where noise is just muted.

e Push , 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].

r To stop the scan, push [CLR•DEL].

■Memory scan

q Push [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 se-

lection mode.

w Push [SQL•WX-ALERT], then rotate [DIAL] to set the

squelch level to the point where noise is just muted.

e Push , 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].

r To stop the scan, push [CLR•DEL].

NOTE: Program 2 or more memory channels to start the

memory scan.

WEATHER CHANNEL SCAN

Repeatedly scans all “TAG” weather channels. Weather

channels are available in the U.S.A. version only.

MEMORY SCAN

Repeatedly scans all

selected memory bank’s

“TAG” memory chan-

nels. Used for checking

often-used channels

and bypassing usually

busy channels such as

control-tower frequen-

cies.

COM BAND SCAN

108.000

MHz

Scan

Jump

118.000

MHz

136.9917

MHz

non-TAG

channel

non-TAG channel

Mch 2 Mch 4 Mch 6

Mch 7Mch 1

Mch 8Mch 10Mch 19

Repeatedly scans

all frequencies

over the entire

COM band.

SCAN OPERATION

■ Weather channel scan

(U.S.A. version only)

q Push , then push [ENT•WX] to select a weather chan-

nel.

w Set the squelch to the point where noise is just muted.

e Push , 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].

r To stop the scan, push [CLR•DEL].

■“TAG” channel setting

Memory and weather channels* can be specified to be

skipped for the memory and weather channel* scans re-

spectively. The “TAG” channel function is only available dur-

ing the scan operation.

q Push [MR•MW] to select the memory mode; or, push ,

then push [ENT•WX] to select a weather channel.*

w Select the desired memory channel to be a “TAG” chan-

nel.

• Push , then push [0•BANK], and rotate [DIAL] to select the

BANK number, if desired. Push [CLR•DEL] to exit the BANK se-

lection mode.

e Push , then push [9•TAG] to set a “TAG.”

• “TAG” appears.

• Non-“TAG” channels are skipped during scan.

r To cancel the “TAG” setting, repeat the above steps.

*Weather channel: U.S.A. version only.

Memory channel 15 is

scanned during memory

scan.

Memory channel 15 is

skipped during scan.

Push then

Appears the “TAG” indicator.

6VOR NAVIGATION (IC-A24 ONLY)

■VOR indicators

214

FROM

COM BAND

(118.000 136.9917 MHz)

NAV BAND (108.000 117.975 MHz)

DVOR MODE

Function display of the IC-A24General VOR equipment

To-from flag

indicator

CDI MODE

Course indicator

Course

indicator

Course deviation needles

Overflow indicator

Push [F], then push [4 CDI].Push [F], then push [1 DVOR].

To-from flag indicator

Course indicator

Course deviation

needle

To-from flag indicator

Two-degree deviation

marks

VOR NAVIGATION (IC-A24 ONLY)

■VOR functions

ïTo 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.

ïTo select the DVOR mode

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.

ï‘TO’ or ‘FROM’ ﬂag selection

The to-from ﬂag indicators indicate whether the VOR naviga-

tion 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.

NOTE:

• 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 automati-

cally.

ï Selecting the next VOR station when using

CDI mode (when using the course deviation needle)

q Push , then push [1•DVOR] to select the DVOR mode.

w Push the keypad or rotate [DIAL] to set the next VOR sta-

tion’s frequency.

e Push , then push [4•CDI] to select the CDI mode.

• Select ‘TO’ or ‘FROM’ ﬂag, if desired.

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.

Course deviation needle does not

appear.

Course indicator shows your

direction to (or from) the VOR

station.

6VOR NAVIGATION (IC-A24 ONLY)

■Flying to a VOR station

The IC-A24 shows the deviation from a VOR station.

q Select 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 ra-

dial 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.

w Select the ‘TO’ ﬂag when ﬂying to the VOR station, or se-

lect the ‘FROM’ ﬂag when ﬂying away from the VOR sta-

tion.

• Push , then push [2•TO] to select ‘TO’.

• Push , then push [3•FROM] to select ‘FROM’.

e Push , then push [4•CDI] to select the CDI (Course

Deviation Indicator) mode.

• The course indicator shows ‘OF’ when the desired VOR signal

cannot be received.

NOTE: When the CDI mode is selected, the operating fre-

quency cannot be changed. To set the operating fre-

quency, select the DVOR mode in advance.

r The 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 ‘≈’ dis-

appears. Each arrow represents a two-degree deviation.

t Push , 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.

However, the function display does not indicate additional

information about the localizer signal.

NOTE: For only the U.S.A. version

IC-A24’s VOR and CDI Navigation features are supple-

mental aids to navigation only, and are not intended to be

a substitute for accurate (primary) VOR/CDI or landing

service equipment.

VOR NAVIGATION (IC-A24 ONLY)

VOR

station

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

NMagnetic

north

Desired course

Aircraft heading 40

123.65

VORTAC

SEATTLE

116.8 Ch 115 SEA

THE AIRCRAFT IS ON COURSE

VOR

station

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

NMagnetic

north

Aircraft should be

heading 40

Aircraft heading 46

(6 off course)

Flown course

123.65

VORTAC

SEATTLE

116.8 Ch 115 SEA

THE AIRCRAFT IS OFF COURSE

NOTE: The course deviation indica-

tor 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 de-

grees right to get back on course.

6VOR NAVIGATION (IC-A24 ONLY)

■Entering a desired course

The IC-A24 shows not only the deviation from the VOR sta-

tion but the deviation from the desired course.

q Push 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.

w Push , then push [4•CDI] to select the CDI mode.

e Set 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

off the desired course.

• When your heading is correct, the ABSS function (see right col-

umn for detail) may be useful instead of course input.

r The 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 de-

grees indicated by the CDI arrows.

• If the overﬂow indicator appears on the right side, select a head-

ing plus 10 degrees to the desired course; if the overﬂow indica-

tor appears on the left side, select a heading minus 10 degrees.

■Crosschecking position

q Select 2 VOR stations on your aeronautical chart.

w Push the keypad or rotate [DIAL] to set the frequency of

one of the VOR station in the DVOR mode.

• The course indicator shows course deviation from the VOR ra-

dial. Note the radial you are on.

e Push the keypad or rotate [DIAL] to set the frequency of

the other VOR station in the DVOR mode.

• Note the radial from the station you are on.

r Extend the radials from each VOR station on the chart.

Your aircraft is located at the point where the lines inter-

sect.

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.

Course

indicator

Overflow indicator (left)

Overflow indicator (right)

Course deviation needles (left)

Course deviation needles (right)

To-from flag indicator

wer

VOR NAVIGATION (IC-A24 ONLY)

EXAMPLE: Entering the desired course bearing 65° to a VOR station.

VOR

station

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

NMagnetic

north

VOR

station

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

113.4 Ch 81 OLM

VORTAC

OLYMPIA

116.8 Ch 115 SEA

123.65

VORTAC

SEATTLE

CROSSCHECKING POSITION

6VOR 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.

ïProgramming a duplex frequency

q Push [CLR•DEL] to select the frequency mode.

w Set a NAV band frequency using the tuning dial or keypad.

• NAV band frequency range: 108.000–117.975 MHz

e Push , then push [5•DUP-W].

• “DUP” ﬂashes and transmit frequency appears.

r Set 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.

• The displayed frequency returns to the NAV band frequency.

ïOperating the duplex function

q Set the desired frequency in the NAV band.

• NAV band frequency range: 108.000–117.975 MHz

w Push , then push [6•DUP] to turn the duplex function

ON.

• “DUP” appears on the function display.

e Hold down [PTT] to transmit at the pre-programmed

transmit frequency.

r Release [PTT] to return to receive.

t Push , then push [6•DUP] to cancel the function.

• “DUP” disappears on the function display.

NOTE: A duplex frequency can be programmed into each

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.

EXAMPLE: Programming 123.65 MHz as the transmit frequency in the duplex function.

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 (#02) cloning software.

ïTransceiver to transceiver cloning

q Connect the OPC-474 CLONING CABLE with adapter

plugs to the [SP/MIC] jack of the master and sub trans-

ceivers.

• The master transceiver is used to send data to the sub trans-

ceiver.

w While 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.

e Push [MR•MW] on the master trans-

ceiver.

• “CL-OUT” appears in the master trans-

ceiver’s display.

• “COURSE DEVIATION NEEDLES”

shows that cloning is taking place

• “CL-IN” appears automatically in the

sub transceiver’s display.

r When 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 IC-

A6, when the data contains the NAV band data. In such

case, a cloning error may occur.

ïCloning using PC

Data can be cloned to and from a PC (Microsoft® Windows®

XP) using the optional CS-A24 (#02) cloning software and

the optional OPC-478 (RS-232C type), OPC-478U or OPC-

478UC (USB type) cloning cable. Consult the CS-A24

(#02) cloning software HELP ﬁle for details.

ïCloning 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 Micro-

soft Corporation in the U.S.A. and other countries.

“COURSE DEVIATION

NEEDLES” shows that

cloning is taking place.

8BATTERY PACKS

■Battery cautions

R DANGER! NEVER incinerate used battery packs.

Internal battery gas may cause an explosion.

R DANGER! NEVER immerse battery pack in water.

If the battery pack becomes wet, be sure to wipe it dry im-

mediately (particularly the battery terminals BEFORE at-

taching it to the transceiver).

R DANGER! NEVER short the terminals of the bat-

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 lit-

tle), new battery pack must be purchased.

■Battery charging

Prior 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)

• Use the supplied AC adapter on regular charging. NEVER

use another manufacture’s adapters.

• Use the specified chargers (BC-119N, BC-121N and

BC-144N). NEVER use another manufacture’s charger.

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 recycla-

ble. 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 op-

tions in your area or contact your dealer.

Turn the transceiver power OFF when charging the battery

pack. Otherwise, the battery pack may not fully charge or

charge properly.

BATTERY PACKS

ïRegular charging

q Attach the battery pack to the transceiver.

w Be sure to turn the transceiver power OFF.

e Connect the wall charger or optional cable (CP-20) as

shown below.

r Charge the battery pack approximately 8 hours, depend-

ing on the remaining power condition.

DO NOT charge the BP-210N more than 12 hours. Other-

wise, the BP-210N will be damaged.

■Optional battery case

When using a battery case attached to the transceiver, in-

stall 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:

• When 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.

To [DC 11V]

IC-A24/A6 with the

attached battery pack

CP-20 (for 11 24 V)

(optional)

To the cigarette

lighter socket

To AC outlet

The shape may

differ depending

on the version.

Wall charger

Tu rn power OFF

R WARNING!

• NEVER modify the CP-20. A modiﬁca-

tion 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.

8BATTERY PACKS

■Optional battery chargers

ïAD-101 installation

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).

ïAbout AD-99N

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).

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).

Push the latch

carefully.

Remove the spacer (Spacer B/C)

from the adapter

Desktop charger adapter

10-pin connector

3-pin connector

Supplied

screws

ïRapid charging with the BC-119N+AD-101

The optional BC-119N provides rapid charging of the battery

packs. The following are additionally required.

• AD-101 charger adapter.

• An AC adapter (may be supplied with BC-119N depending on ver-

sions) or the DC power cable (CP-20).

ïRapid charging with the BC-121N+AD-101

The optional BC-121N allows up to 6 battery packs to be

charged simultaneously. The following are additionally re-

quired.

• Six AD-101 charger adapters.

• An AC adapter (BC-157) or the DC power cable (OPC-656).

AD-99N (supplied

with AD-101)

adapter

IC-A24/A6

BP-209N/BP-210N

Turn power OFF

The AD-101 charger

adapter

is installed in the slot.

IC-A24/A6

BP-209N/BP-210N

AD-101 charger adapters are

installed in each slot.

DC power cable (OPC-656)

(Connect with the DC power supply;

13.8 V/at least 7 A)

Turn power OFF

AD-99N (supplied

with AD-101)

AC adapter

(BC-157:

Purchase

separately)

The adapter (Spacer A) only is required for IC-A24/A6. When re-

moving 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. 28 for details.

The adapter (Spacer A) only is required for IC-A24/A6. When re-

moving 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. 28 for details.

BATTERY PACKS

9SPECIFICATIONS

ïGeneral

• Frequency coverage (MHz) : TX 118.000 to 136.9917

RX 108.000 to 136.9917*1

WX 161.650 to 163.275*4

• Mode : 6K00A3E/5K60A3E

16K0G3E (161.65 to 163.275 MHz)

• Channel spacing : 25 kHz/8.33 kHz

• Number of memory channels : 200 (20 CH × 10 BANKS)

• Power supply requirement : Specified 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)

• Current drain : Tx 1.5 A typical

Rx 70 mA typical (at stand by)

300 mA typical (at AF maxi-

mum)

• Antenna connector : BNC 50 Ω (nominal)

• Dimensions : 54(W) × 129.3(H) × 35.5(D) mm

(projections not included)

2.1(W) × 5.1(H) × 1.4(D) inch

• Weight : Approximately 180 g (6.35 oz)

(Without the battery pack and antenna.)

ïTransmitter

• Output power : 5.0 W (PEP) typical

1.5 W (CW) typical

• Modulation : Low level modulation

• Modulation limiting : 70 to 100%

• Frequency stability : ±1 ppm

• Audio harmonic distortion : Less than 10% (at 60% modulation)

• Hum and noise ratio : More than 35 dB

•

Spurious emissions

More than 46 dB (except operating

frequency ±62.5 kHz range)

• Microphone connector : 3-conductor 2.5(d) mm (1/10˝)/

more than 100 kΩ

ïReceiver

• Receive system : Double conversion

superheterodyne

• Intermediate frequencies : 1st 46.35 MHz, 2nd 450 kHz

• Sensitivity

VOR (AM 6 dB S/N)

: –3 dBµ typical

COM (AM 6 dB S/N)

: –6 dBµ typical

WX (FM 12 dB SINAD)

: –13 dBµ typical

• Squelch sensitivity (Threshold) : AM Less than 0 dBµ

FM Less than –5 dBµ*4

• Selectivity : 6 dB (More than 7.5 kHz)*2

60 dB (Less than 25 kHz)*2

6 dB (Less than 2.778 kHz)*3

60 dB (Less than 7.37 kHz)*3

• Spurious response : AM More than 60 dB

rejection FM More than 30 dB*4

• Audio output power : 500 mW typical (at 10% distortion

with an 8 Ω load, 30% modulation)

• Noise and hum : More than 35 dB at 30% modula-

tion

• 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 136.9917 MHz.)

*2: at 25 kHz channel spacing.

*3: at 8.33 kHz channel spacing.

*4: U.S.A. version only.

Measurements made in accordance with RTCA.

All stated specifications are subject to change without notice

or obligation.

SPECIFICATIONS (VFO CHANNEL ID LIST)

• Channel spacing: 25 kHz (Actual frequency is displayed.)

Operating Frequency

(MHz)

Channel spacing

(kHz)

Channel ID

(Displayed Frequency)

118.0000 25 118.000

118.0250 25 118.025

118.0500 25 118.050

118.0750 25 118.075

118.1000 25 118.100

• Channel spacing: 8.33 kHz

Operating Frequency

(MHz)

Channel spacing

(kHz)

Channel ID

(Displayed Frequency)

118.0000 8.33 118.005

118.0083 8.33 118.010

118.0167 8.33 118.015

118.0250 8.33 118.030

118.0333 8.33 118.035

118.0417 8.33 118.040

118.0500 8.33 118.055

118.0583 8.33 118.060

118.0667 8.33 118.065

118.0750 8.33 118.080

118.0833 8.33 118.085

118.0917 8.33 118.090

118.1000 8.33 118.105

• Channel spacing: 8.33 kHz/25 kHz

Operating Frequency

(MHz)

Channel spacing

(kHz)

Channel ID

(Displayed Frequency)

118.0000 25 118.000

118.0000 8.33 118.005

118.0083 8.33 118.010

118.0167 8.33 118.015

118.0250 25 118.025

118.0250 8.33 118.030

118.0333 8.33 118.035

118.0417 8.33 118.040

118.0500 25 118.050

118.0500 8.33 118.055

118.0583 8.33 118.060

118.0667 8.33 118.065

118.0750 25 118.075

118.0750 8.33 118.080

118.0833 8.33 118.085

118.0917 8.33 118.090

118.1000 25 118.100

118.1000 8.33 118.105

These tables show just the display example between 118.0000 MHz

and 118.1000 MHz, not show all frequencies in the band.

10 OPTIONS

ïBATTERY CASE AND PACKS

• 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/1500 mAh (Min.)/1650 mAh (Typ.) Ni-MH battery pack.

ïCHARGERS

• 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 re-

quired) simultaneously. An AC adapter should be purchased sepa-

rately. 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).

ïMICROPHONE

• HM-234 sPeaKer MicroPHone

Combination speaker and microphone.

ïBELT 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.

ïDC 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.

ïOTHER OPTIONS

• OPC-499 Headset adaPter cable

When 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.

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.

OPTIONAL HEADSET CONNECTION

ïOPC-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

OPC-499

IC-A24/A6

PTT switch

HEADSET

(Must be purchased

separately)

Use a PTT switch with a

3.5 mm (1/8") diameter

plug, if required.

NOTICE!

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.

12 SAFETY TRAINING INFORMATION

WARNING

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 dur-

ing the course of employment by individuals aware of the

hazards, and the ways to minimize such hazards. This radio

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 Compli-

ance 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.

• American National Standards Institute (C95.3-1992), IEEE Recom-

mended Practice for the Measurement of Potentially Hazardous Electro-

magnetic 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-234), Rechargeable Ni-MH Bat-

tery Pack (BP-210N) and Alkaline Battery Case (BP-208N).

To ensure that your expose to RF electromagnetic en-

ergy is within the FCC allowable limits for occupational

use, always adhere to the following guidelines:

• 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 expo-

sure 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 expo-

sure 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 re-

cipients 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.

CAUTION

INFORMATION EN MATIÈRE DE SÉCURITÉ

Votre radio Icom produit une énergie électromagnétique

de radiofréquences (RF), en mode de transmission. Cette

radio est conçue pour un «usage professionnel seulement»

et classée comme tel, ce qui signiﬁe qu'elle doit être utilisée

uniquement dans le cadre d'un travail par des personnes

conscientes des dangers et des mesures visant à minimiser

ces dangers. Elle N'EST PAS conçue pour une «utilisation

grand public», dans un environnement non contrôlé.

Cet appareil a été évalué et jugé conforme, à 2,5 cm, aux limites d'exposi-

tion aux RF de la FCC, pour une « utilisation grand public ». En outre, votre

radio Icom satisfait les normes et directives qui suivent en matière de niveaux

d'énergie et d'énergie électromagnétique de RF et d'évaluation de tells niveaux

en ce qui concerne l'exposition humaine :

• Supplément C, édition 97-01, du Bulletin OET n° 65 de la FCC, «Eva-

luating Compliance with FCC Guidelines for Human Exposure to Radio

Frequency Electromagnetic Fields».

• Norme de l’American National Standards Institute (ANSI): IEEE C95.1-

1992 sur les niveaux de sécurité compatibles avec l'exposition humaine

aux champs électromagnétiques de radiofréquences (3 kHz à 300 GHz).

• Norme de l’ANSI : IEEE C95.3-1992 sur la méthode d’évaluation recom-

mandée du champ magnétique potentiellement dangereux des radiofré-

quences et des micro-ondes.

• Les accessoires qui suivent sont approuvés pour une utilisation avec ce

produit. L'utilisation d'accessoires autres que ceux précisés peut entraî-

ner des niveaux d'exposition aux RF supérieures aux limites établies par

la FCC en matière d'exposition aux RF sans ﬁl.; Attache pour ceinture

(MB-86/103), microphone haut-parleur (HM-234), bloc-piles rechargeable

au Ni-MH (BP210N) et boiter piles (BP-208N).

Aﬁn de vous assurer que votre exposition à une énergie

électromagnétique de RF se situe dans les limites permises

par la FCC pour une utilisation grand public, veuillez en tout

temps respecter les directives suivantes :

• NE PAS faire fonctionner la radio sans qu'une antenne appropriée y soit

ﬁxée, car ceci risque d'endommager la radio et causer une exposition

supérieure aux limites établies par la FCC. L'antenne appropriée est celle

qui est fournie avec cette radio par le fabricant ou une antenne spéciale-

ment autorisée par le fabricant pour être utilisée avec cette radio.

• NE PAS émettre pendant plus de 50% du temps total d'utilisation de l'ap-

pareil («50% du facteur d'utilisation»). Émettre pendant plus de 50% du

temps total d'utilisation peut causer une exposition aux RF supérieure

aux limites établies par la FCC. La radio est en train d’émettre lorsque

le témoin du “ ” s’afﬁche sur l’écran ACL. La radio émettra si vous

appuyez sur le bouton du microphone.

• TOUJOURS tenir l'antenne éloignée d'au moins 2,5 cm de votre corps

au moment d'émettre et utiliser uniquement l'attache pour ceinture Icom

illustrée à la p. 32, lorsque vous attachez la radio à votre ceinture, ou à

autre chose, de façon à vous assurer de ne pas provoquer une exposition

aux RF supérieure aux limites ﬁxées par la FCC. Pour offrir à vos interlo-

cuteurs la meilleure qualité de transmission possible, tenez l'antenne à au

moins 5 cm de votre bouche et légèrement de côté.

Les renseignements ci-dessus fournissent à l'utilisateur toute l'information né-

cessaire sur l'exposition aux RF et sur ce qu'il faut faire pour assurer que cette

radio fonctionne en respectant les limites d'exposition aux RF établies par la

FCC.

Interférence électromagnétique et compatibilité

En mode de transmission, votre radio Icom produit de l'énergie de RF qui peut

provoquer des interférences avec d'autres appareils ou systèmes. Pour éviter

de telles interférences, mettez la radio hors tension dans les secteurs où une

signalisation l’exige. NE PAS faire fonctionner l'émetteur dans des secteurs

sensibles au rayonnement électromagnétique tels que les hôpitaux, les aéro-

nefs et les sites de dynamitage.

Usage professionnel/contrôlé

Ce radio émetteur est utilisé dans des cas où des personnes sont exposées en

raison de leur travail, pourvu qu'elles soient conscientes du risque d'exposition

et qu'elles puissent exercer un contrôle sur cette exposition.

AVERTISSEMENT

MISE EN GARDE

13 FOR CLASS A UNINTENTIONAL RADIATORS

This equipment has been tested and found to comply with

the limits for a Class A digital device, pursuant to part 15 of

the FCC Rules. These limits are designed to provide reason-

able protection against harmful interference when the equip-

ment is operated in a commercial environment. This

equipment generates, uses, and can radiate radio frequency

energy and, if not installed and used in accordance with the

instruction manual, may cause harmful interference to radio

communications. Operation of this equipment in a residential

area is likely to cause harmful interference in which case the

user will be required to correct the interference at his own

expense.

TROUBLESHOOTING

If your transceiver seems to be malfunctioning, please check the following points before sending it to a service center.

Fuse 8 A

ïCP-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.

PROBLEM POSSIBLE CAUSE SOLUTION REF.

No power comes on. • The battery is exhausted.

• Bad connection for the battery pack.

• The CP-20’s fuse is blown.

• Recharge the battery pack.

• Check the connection to the transceiver.

• Check for the cause, then replace the

CP-20’s fuse to new one.

pp. 26–29

p. 1

p. 37

No sound comes from

the speaker. • Squelch level is too deep.

• Volume level is too low.

• Set squelch to the threshold point.

• Set [VOL] to a suitable level.

p. 9

Transmitting impossible. • WX channels or NAV band is selected.

• The battery is exhausted.

• Set COM band in frequency mode.

• Recharge the battery pack.

p. 8

pp. 26–29

Operating frequency or

memory channel can not

be changed.

• Lock function is activated. • Push , then push [7• ].p. 11

Scan does not start. • All memory channels in the selected bank

are not programmed as “TAG” channels.

• Squelch is open.

• There is not more than 2 memorized

channels.

• Set the “TAG” settings of desired

channels.

• Set the squelch level to tighten.

• Program 2 or more memory channels.

p. 17

p. 9

p. 16

No beep sounds. • Beep tones turned OFF. • Push , then push [8•BEEP], and

rotate [DIAL] to adjust the beep tone

level.

p. 11

When using an optional

HM-234, your voice

hears from the speaker

during transmitting.

• The side tone function is activated. • Push [PTT], then rotate [DIAL] to set the

monitoring level to ‘ST-0’ (The side tone

function is OFF).

p. 11

INDEX

– A –

About AD-99N ................................................................................28

Accessing the 121.5 MHz emergency frequency ...........................11

ACCESSORY ATTACHMENT ...........................................................1

AD-101 installation .........................................................................28

ANL function ..................................................................................... 9

Antenna ............................................................................................1

– B –

BASIC OPERATION .........................................................................8

BATTERY CASE AND PACKS........................................................32

Battery cautions ..............................................................................26

Battery charging .............................................................................26

Battery pack replacement .................................................................1

BATTERY PACKS ...........................................................................26

BC-119N+AD-101 ..........................................................................29

BC-121N+AD-101 ..........................................................................29

Belt clip ............................................................................................. 1

BELT CLIPS ....................................................................................32

– C –

Channel spacing setting ...................................................................9

CHARGERS ...................................................................................32

Clearing the memory contents .......................................................14

CLONING .......................................................................................25

Cloning error ...................................................................................25

Cloning using PC ............................................................................25

COM band scan ..............................................................................16

CP-20 fuse replacement .................................................................37

Crosschecking position ...................................................................22

– D –

DC CABLES ...................................................................................32

Deletes the stored recall channel ...................................................10

Duplex operation ............................................................................24

– E –

Entering a desired course...............................................................22

EXPLICIT DEFINITIONS ................................................................... i

– F –

Flying to a VOR station ................................................................... 20

FOR CLASS A UNINTENTIONAL RADIATORS ............................36

FOREWORD .....................................................................................i

Function display ................................................................................ 6

– G –

General ........................................................................................... 30

– I –

IMPORTANT ...................................................................................... i

INDEX .............................................................................................38

– L –

Lock function ..................................................................................11

Low battery indicator ......................................................................10

– M –

Memory channel selection ..............................................................12

Memory names ...............................................................................14

MEMORY OPERATION ..................................................................12

Memory scan ..................................................................................16

MICROPHONE ............................................................................... 32

– O –

OPC-499 (HEADSET ADAPTER) connection ................................ 33

Operating the duplex function .........................................................24

Optional battery case .....................................................................27

Optional battery chargers ............................................................... 28

OPTIONAL HEADSET CONNECTION ..........................................33

OPTIONS .......................................................................................32

OTHER OPTIONS .......................................................................... 32

– P –

Panel description ..............................................................................2

PANEL DESCRIPTION .....................................................................2

INDEX

PRECAUTION .................................................................................. ii

Programming a duplex frequency ...................................................24

Programming a memory channel ...................................................13

Programming memory names ........................................................14

– R –

Rapid charging with the BC-119N+AD-101 .................................... 29

Rapid charging with the BC-121N+AD-101 .................................... 29

Recall function ................................................................................ 10

Recalling the stored frequencies ....................................................10

Receiver .........................................................................................30

Receiving ..........................................................................................9

Regular charging ............................................................................27

Replaces the stored recall channel ................................................10

– S –

SAFETY TRAINING INFORMATION .............................................. 34

SCAN OPERATION ........................................................................ 16

Scan types ......................................................................................16

Selecting a weather channel ...........................................................8

Selecting the next VOR station when using CDI mode

(when using the course deviation needle) ......................................19

Setting a frequency ...........................................................................8

Setting a squelch level ......................................................................9

Setting beep tone ...........................................................................11

Setting the side tone level ...............................................................11

Setting weather alert function .........................................................11

Side tone function ...........................................................................11

SPECIFICATIONS ..........................................................................30

SUPPLIED ACCESSORIES .............................................................. i

– T –

TABLE OF CONTENTS ................................................................... iii

“TAG” channel setting .....................................................................17

‘TO’ or ‘FROM’ ﬂag selection...........................................................19

To select the CDI mode ..................................................................19

To select the DVOR mode ..............................................................19

Transceiver to transceiver cloning ..................................................25

Transferring memory contents ........................................................ 12

Transmitter ...................................................................................... 30

Transmitting ......................................................................................9

TROUBLESHOOTING ....................................................................37

– U –

Using keypad .................................................................................... 8

Using the tuning dial ......................................................................... 8

– V –

VOR functions ................................................................................19

VOR indicators................................................................................18

VOR NAVIGATION (IC-A24 ONLY).................................................18

– W –

Weather channel scan .................................................................... 17

1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan

Printed on recycled paper with soy ink.

A-6987D-1EX-wa

Printed in Japan

ICOM orporated 279100 VHF Air Band Transceiver User Manual

ICOM Incorporated VHF Air Band Transceiver

Contents

User manual

Navigation menu

Namespaces

Views

Navigation