Icom IC-A4 User Manual
INSTRUCTION MANUAL
VHF AIR BAND TRANSCEIVER
iA4
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
condition that this device does not cause
harmful interference.
FOREWORD
WORD DEFINITION
RWARNING
Personal injury, fire hazard or electric shock
may occur.
CAUTION
Equipment damage may occur.
NOTE
If disregarded, inconvenience only. No risk
of personal injury, fire or electric shock.
CAUTIONS
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-A4.
EXPLICIT DEFINITIONS
The explicit definitions below apply to this instruction manual.
FCC caution: Changes or modifications to this transceiver, not
i
expressly approved by Icom Inc., could void your authority to
operate this transceiver under FCC regulations.
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
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.
NEVER connect the transceiver to an AC outlet or to a
power source of more than 16 V DC. Such a connection will
damage the transceiver.
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
protection against such accidents and the transceiver will be
ruined.
NEVER attempt to charge alkaline or dry cell batteries. Be-
ware that external DC power connections will charge batteries
inside the battery case. This will damage not only the battery
case but also the transceiver.
SUPPLIED ACCESSORIES
+_
qw etr
DO NOT push the PTT when not actually desiring to trans-
mit.
DO NOT operate the transceiver near unshielded electrical
blasting caps or in an explosive atmosphere.
AVOID using or placing the transceiver in direct sunlight or
in areas with temperatures below –10°C or above +60°C.
Place unit in a secure place to avoid inadvertent use by children.
The use of non-Icom battery packs/chargers may impair
transceiver performance and invalidate the warranty.
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.
NOTE: Optional functions vary with transceiver version.
In this manual, optional functions are indicated by
“ ” Icon.
Please contact your dealer for details.
Accessories included with the transceiver: Qty.
q Antenna .......................................................................... 1
w Belt clip ........................................................................... 1
e Handstrap ........................................................................ 1
r Battery pack or battery case with Ni-Cd batteries* ... 1 set
t Wall charger* .................................................................. 1
*The battery pack(BP-195 or BP-196), battery case or wall
charger may differ depending on version. Some versions do not
include a battery pack and wall charger.
ii
TABLE OF CONTENTS
FOREWORD ........................................................................ i
EXPLICIT DEFINITIONS ..................................................... i
CAUTIONS .......................................................................... i
SUPPLIED ACCESSORIES................................................. ii
TABLE OF CONTENTS ...................................................... iii
1 ACCESSORY ATTACHMENT ....................................... 1
2 PANEL DESCRIPTION ............................................ 2 – 4
■ Panel description ................................................... 2– 3
■ Function display .......................................................... 4
3 BASIC OPERATION ................................................ 5 – 7
■ Receiving and transmitting ......................................... 5
■ Setting squelch level ................................................... 6
■ Side tone function ....................................................... 6
■ Lock function .............................................................. 6
■ Display backlighting .................................................... 6
■ Low battery indicator .................................................. 6
■ Dial select function ..................................................... 7
4 SCAN OPERATION ...................................................... 8
■ Memory (lockout) scan ............................................... 8
■ VFO (full) scan ............................................................ 8
5 MEMORY PROGRAMMING .................................. 9– 10
■ Programming a memory channel ............................... 9
■ Memory names ......................................................... 10
6 OTHER FUNCTIONS .................................................. 11
■ Initial set mode .......................................................... 11
■ Resettng the CPU ..................................................... 11
7 BATTERY PACKS ................................................ 12– 14
■ Charging precautions ............................................... 12
■ Battery pack charging ............................................... 12
■ About the battery pack .............................................. 14
■ Installing batteries in the battery case ...................... 14
8 CLONING .................................................................... 15
9 TROUBLESHOOTING ................................................ 16
10 SPECIFICATIONS ....................................................... 17
11 OPTIONS ..................................................................... 18
iii
ACCESSORY ATTACHMENT
1
D Antenna
CAUTION:
antenna may damage the transceiver.
Insert the supplied antenna into the antenna connector and screw down the antenna as shown at right.
Keep the jack cover attached when jacks
are not in use to avoid bad contacts from
dust and moisture.
Transmitting without an
D Battery pack replacement
To remove:
Push and hold the battery release downwards,
then pull the battery pack
upwards as shown at
right.
To attach:
Mate the notched ends of the battery pack and the transceiver, and push the battery pack until it clicks into place.
D Belt clip
Conveniently attaches to your belt.
To attach:
Slide the belt clip into the plastic loop on the back of the battery case/pack.
To remove:
Push the top of the belt clip towards the transceiver and at
the same time, push it downward and free of the plastic loop.
1
2
PANEL DESCRIPTION
■ Panel description
q
w
e
r
t
y
!4
!3
!2
!1
!0
o
i
u
q VOLUME CONTROLS [VOL] (p. 5)
Turns power ON and adjusts the audio level.
w PTT SWITCH [PTT] (p. 5)
Push and hold to transmit; release to receive.
e CHANNEL UP/DOWN SWITCHES [Y]/[Z]
➥ Push to select the operating channel or frequency. (p. 5)
➥ Select item conditions in set mode.
r LOCK SWITCH [ ]
➥ Push and hold 2 sec. to toggle the key lock function ON
or OFF. (p. 6)
“ ” appears on the display.
•
t VFO/MEMORY SWITCH [V/M] *
➥ Push to select VFO mode or
memory mode. (pgs. 5, 8)
• “X” appears when memory mode is selected.
• The transceiver has 19 memory channels.
y MEMORY WRITE SWITCH [MW] *
➥ Push and hold for 5 sec. to write
information into memory channels. (p. 9)
u SCAN SWITCH [SCAN]
➥ Starts and stops the scan function:
2
PANEL DESCRIPTION
2
VFO mode: VFO scan function. (option)
MEMORY mode: Memory channel scan function. (p. 10)
➥When memory mode is selected, this switch sets the
displayed channel as a scan lock-out channel when
pushed for 2 sec. (option)
• “SKIP” appears on the display.
i SQUELCH SWITCH [SQL]
➥ Push and hold to open the squelch. (p. 6)
➥ While pushing [SQL], push [Y]/[Z] to select the
squelch level. (p. 6)
• 9 squelch levels and squelch open are available.
o FUNCTION DISPLAY (p. 4)
!0 TRANSMIT INDICATOR
Lights red while transmitting.
!1 EXTERNAL DC POWER JACK [CHARGE]
Connect a 12 to 16 V DC power source using the optional
cables, CP-12L or OPC-254L, to charge the attached battery pack; or connect the BC-110V wall charger for charging.
CAUTION:This connection is for charging ONLY. Power
to the transceiver must be turned OFF during charging.
!2 SPEAKER/MICROPHONE
!3 EXTERNAL SPEAKER AND MICROPHONE JACKS
[SP/MIC]
➥ Connect an optional speaker-microphone or headset, if
desired. The internal microphone and speaker will not
function when either is connected. (See p. 18 for a list
of available options.)
➥ Side tone function is available when an optional head-
set adapter is connected. (pgs. 6, 18)
!4 ANTENNA CONNECTOR (p. 1)
Connects the supplied antenna.
*NOTE: The VFO/memory switch [V/M] and the memory
write switch [M/W] functions may not be available depending on version.
3
PANEL DESCRIPTION
MR
SKIP
2
■ Function display
q MEMORY MODE INDICATOR (p. 9)
Appears when memory mode is selected.
w LOCK INDICATOR (p. 6)
Indicates that the lock function is in use.
e LOW BATTERY INDICATOR
➥ Appears when the battery is nearing exhaustion.
➥ Appears and flashes when battery replacement is nec-
essary.
r FREQUENCY DISPLAY (p. 11)
➥Shows the operating frequency.
➥Shows the channel name when the memory name func-
tion is selected. (p. 10)
t BUSY INDICATORS
➥ “BUSY” appears when receiving a signal or when the
squelch is open.
y MEMORY LOCKOUT INDICATOR
➥ “SKIP” appears when the memory channel is set as
lockout channel.
u MEMORY CHANNEL INDICATOR
➥Shows the memory channel number.
➥When the transceiver output power increases above a
specified level, a protection circuit stops the transmitting,
then “--” appears on the display instead of the memory
channel number. Release [PTT] then push it again to
continue transmitting.
4
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