Icom Ic-A110 Vhf Airband Tranciever Instruction Manual

							iA110
VHF AIR  BAND TRANSCEIVER
INSTRUCTION MANUAL
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
condition that this device does not cause
harmful interference. 
						

							i
FOREWORD
READ ALL INSTRUCTIONScarefully and completely
before using the transceiver.
SAVE THIS INSTRUCTION MANUAL—This in-
struction manual contains important operating instructions for
the IC-A110.
EXPLICIT DEFINITIONS
The explicit definitions below apply to this instruction manual.
CAUTIONS
RWARNING! NEVERoperate the transceiver with a
headset or other audio accessories at high volume levels.
Hearing experts advise against continuous high volume op-
eration. If you experience a ringing in your ears, reduce the
volume level or discontinue use.
NEVERconnect the transceiver to an AC outlet or to a
power source of more than 27 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.
DO NOT operate the transceiver near unshielded electrical
blasting caps or in an explosive atmosphere.
DO NOTconnect the transceiver to a power source using
reverse polarity. This connection will not only blow fuses but
also may damage the transceiver.
WORDDEFINITION
RWARNINGPersonal injury,  re hazard or electric shock
may occur.
CAUTIONEquipment damage may occur.
NOTEIf disregarded, inconvenience only. No risk
of personal injury,  re or electric shock.
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. 
						

							ii
DO NOTplace unit in a non-secure place to avoid inad-
vertent use by children.
DO NOTpush the PTT when not actually desiring to trans-
mit..
AVOID using or placing the transceiver in direct sunlight or
in areas with temperatures below –30°C (–22°F) or above
+60°C (+140°F).
AVOID placing the transceiver in excessively dusty envi-
ronments.
AVOID placing the transceiver against walls. This will ob-
struct heat dissipation.
AVOID the use of chemical agents such as benzine or al-
cohol when cleaning, as they damage the transceiver sur-
faces.
BE CAREFUL! The transceiver will become hot when
operating continuously for long periods.
TABLE OF CONTENTS
FOREWORD ........................................................................................... i
EXPLICIT DEFINITIONS ......................................................................... i
CAUTIONS .............................................................................................. i
TABLE OF CONTENTS .......................................................................... ii
1 PANEL DESCRIPTION ............................................................... 1 – 3
Panel description  ............................................................................. 1–2
Function display .................................................................................... 3
2 BASIC OPERATION  ................................................................... 4 – 5Power ON  ............................................................................................. 4
Channel selection .................................................................................. 4
Squelch function .................................................................................... 5
Side tone function .................................................................................. 5
LCD backlight control ............................................................................ 5
Dial select function ................................................................................ 5
3 SCAN OPERATION  ................................................................... 6 – 7Scan operation  ..................................................................................... 6
On-hook scan  ....................................................................................... 7
Dualwatch ............................................................................................. 7
4 MEMORY PROGRAMMING ...................................................... 8 – 9Programming a memory channel .......................................................... 8
Memory names ...................................................................................... 9
5 OTHER FUNCTIONS  ............................................................... 10-11Initial set mode ............................................................................... 10-116 CONNECTION AND INSTALLATION  .................................... 12 – 13Rear panel and connections  ............................................................... 12
Mounting ............................................................................................. 13
Supplied accessories........................................................................... 13
7 CLONING ...................................................................................... 148 SPECIFICATIONS ............................................................. 15-16
9 OPC-871 HEADSET ADAPTER......................................... 17-18
OPC-871 Headset adapter .................................................................. 1710 OPTIONS ................................................................................ 19 
						

							Panel description
qTUNING [DIAL(TS)]
➥Changes the operating frequency; memory channel in
memory mode; set mode contents in set mode, etc.
➥Push to toggle the dimmer control OFF, Low and High.
➥Push and hold for 1 sec. to select the Tuning Step [TS];
1 MHz or 10 kHz are available. (p. 5)
wFUNCTION DISPLAY(p. 3)
Displays the operating frequency, memory channel name, etc.eVOLUME UP[Y] DOWN[Z]KEY
Adjusts the audio output level.
rLOUD SPEAKER
Front mounted loud speaker.
tPOWER SWITCH [POWER]
Push and hold 500 m sec. to turn the power ON and OFF.
➥The following functions are available at power ON as options:
•Initial set mode (p. 10)
•Cloning mode (p. 14)
1
1PANEL DESCRIPTION
V/MSCANPRISQL
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wer
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							2
1PANEL DESCRIPTION
ySQL SWITCH [SQL]
➥Push to turn on the squelch adjust mode. (p. 6)
➥Push and hold this switch for 1 sec. to turn ON/OFF the ex-
ternal speaker output. (p. 4)
uPRIORITY SWITCH [PRI]
Push to select priority channel. (p. 11)
•“Pr” appears on the display.
iSCAN SWITCH [SCAN]
➥Starts and stops the scan function:
•VFO mode: VFO scan function.
•Memory mode: Memory channel scan function. (p. 6)
➥Push and hold this switch for 5 sec. to set the displayed
channel as a memory lock-out channel. (p. 8)
•“LOCK OUT” appears on the display.
oVFO/MEMORY SWITCH [V/M]/[MW]
➥Push to toggle the VFO mode or the Memory mode. (p. 4)
• “X” and memory channel number appear when memory mode
is selected.
• The transceiver has 20 memory channels.
➥When VFO mode is selected;
•Push and hold this switch for 5 sec. to program the VFO fre-
quency to memory channel. (p. 8)
➥When Memory mode is selected;
•
Push and hold this switch for 5 sec. to turn the “Memory name
write mode” ON.
!0MICROPHONE CONNECTOR
Connects the supplied microphone or optional.
NEVER connect other microphones. The pin assignments
may be different and the transceiver may be damaged.
MICROPHONE
The supplied microphone has a PTT switch and a cradle. The
following functions are available when the microphone is
taken off from the hook or put back on hook:
➥Automatic scan starts when putting on hook. (p. 7)
➥Automatic scan stops when taken off hook. (p. 7)
NOTE:Optional functions vary with transceiver version.
In this manual, optional functions are indicated by
“”Icon. 
Please contact your dealer for details. 
						

							3
1PANEL DESCRIPTION
Function display
qMEMORY MODE INDICATOR(p. 5)
Appears when memory mode is selected.
wDUALWATCH INDICATOR(p. 7)
Indicates when the dualwatch function is activated.
eSCAN INDICATOR(p. 8)
Indicates when the scan function is selected.
rBUSY INDICATOR(p. 6)
“BUSY” appears when receiving a signal or when the
squelch is open. (p. 6)tTX INDICATOR (p. 5)
Appears while transmitting.
yFREQUENCY DISPLAY(p. 11)
➥Shows the operating frequency. 
➥Shows the channel name when the memory name function
is selected. (p. 10)
uVOLUME LEVEL INDICATORS
➥Shows the AF volume level(while receiving).
iSET MODE INDICATOR
➥Appears when the Initial set mode is selected. (p. 12)
oLOCK OUT INDICATOR
➥Appears when the channel is set as a ‘LOCK OUT’chan-
nel. (p. 8)
!0MEMORY CHANNEL INDICATOR
➥Indicates the selected memory channel number
➥‘Pr’appears when the priority channel is selected.
*NOTE: The VFO/memory switch [V/M] and the memory
write switch [M/W] functions may not be available de-
pending on version.
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							4
2BASIC OPERATION
Power ON
qPush [POWER] to turn power ON.
wOperate the transceiver as indicated in the following sec-
tions.
eSelect the desired memory channel (or VFO frequency)
with the [V/M] keys.
•When receiving a signal,  appears and audio is emit-
ted from the speaker.
•Further adjustment of audio level may be necessary at this point.
•Push [SQL] to adjust the squelch level. (p. 6)
•Push and hold the tuning dial for 1 sec. to select the [TS], each
push increments/decrements to the frequency are either 10 kHz
or 1 MHz. (p. 7)
rPush and hold [PTT] to transmit, then speak into the mi-
crophone.
•Transmit indicator  lights.
tRelease [PTT] to receive.
Channel selection
ïVFO/Memory selection
qPush [V/M] to select memory
mode or VFO mode.
➥Rotate the dial to select a de-
sired frequency/channel.
wDuring memory mode opera-
tion, push [V/M] key to trans-
fer the memory contents to
VFO.
• Push [V/M] to select VFO
mode.
NOTE: Only frequency data is transferred even if the
memory channel has a memory name.
ïExternal speaker output control
External speaker output can be turned OFF, if desired.
qPush and hold [SQL] for 1 sec.
wRotate the dial to select “SP OFF”.
ePush [SQL] to turn to the previous mode.
NOTE:This function avail-
able external speaker only. 
						

							5
2BASIC OPERATION
Squelch function
The transceiver has a noise squelch circuit to mute undesired
noise while receiving no signal.
DSetting the squelch level
qPush [SQL] to turn the level adjusting mode ON.
wTurn the tuning [DIAL] to select the squelch level.
•‘SQ 01’is loose squelch and ‘SQ 25’is tight squelch. (Ini-
tial level is ‘SQ 01’)
•‘SQ 01’indicates that the squelch circuit is turned off.
• “” appears on the display.
ePush [SQL] to return to regular operation.
Side tone function
When using an optional headset, such as those from the
David Clark Co. via the OPC-871
HEAD SET ADAPTOR, the
transceiver outputs your transmitted voice to the headset for
monitoring. (p. 17)
LCD backlight control
The backlight of the can be set OFF, Low or High.
➥Push [DIAL] to toggle the backlight control; OFF, Low or
High are available.
Dial select function
Use the dial select function to adjust the tuning behavior of
the [DIAL] keys—use 1 MHz tuning when you want to change
the frequency in large increments; use regular tuning (25 kHz
or 8.33* kHz) when you want to change the frequency in
smaller increments.
*Except USA version
qPush [V/M] to select VFO
mode.
wPush and hold [DIAL(TS)] for
1 sec. to select the desired
tuning increment.
•1 MHz tuning or regular
tuning steps can be se-
lected. (see diagrams at
right)
ePush and hold [DIAL(TS)] for
1 sec. to return to normal op-
eration.
NOTE: Large tuning steps should be used only when you
want to change the frequency in large increments. Please
select regular tuning steps for normal operation.
1 MHz tuning selected
Regular tuning selected 
						

							6
3SCAN OPERATION
Scan operation
qPush [V/M] to select memory mode or VFO mode, if nec-
essary.
•“ ” appears on the memory mode.
wMake sure the squelch level is set to the threshold point. 
• Set a squelch level (01 to 25) where the noise is muted.
ePush [SCAN] to start scan.
• To change the scan direction, turn [DIAL].
•“SCAN (or P SCAN)“ flashes while scaning.
rPush [SCAN] again to stop the scan.
NOTE:Normal scan or Priority scan is pre-programmed
by cloning. Please ask your dealer or system operator for
details.
ïNORMAL SCAN
•Memory lock scan
Repeatedly scans memory
channels except skip (lockout)
channels.
•VFO scan
Repeatedly scans all
frequencies over the entire
band. 
Scan step is minimum channel
spacing. (eg 25 kHz or 8.33*
kHz)
*Except USA version
ïPRIORITY SCAN
•Priority memory scan
While scaning on a memory
mode, priority watch checks
for a signal on the selected
priority channel every 250 m
sec except lockout channel.
MR
Mch 2*Mch 1
Mch 3
Mch 20
250 msec.*: Lockout chSKIP
 Scan
Jump
Starthighest
frequency lowest
frequency
Priority
chMch 2*Mch 1
Mch 3
Mch 20
250 msec.250 msec.
SKIP
*: Lockout ch 
						

							7
3SCAN OPERATION
On–hook scan
On–hook scan (Hanger scan) is available when taking the mi-
crophone from its hanger (off–hook) and /or returning it into
the hanger (on–hook).
qPush [SCAN] to start scanning.
wWhen receiving a signal, scan pauses until the signal dis-
appears.
➥
•You can converse by taking the microphone from the
hook.
ePlace the microphone on the hook to restart scanning.
rScan restarts 2 sec. after the signal disappears even if you
did not converse the station.
When you take the microphone during the scan operation.
➥
•In VFO scan; scan resumes promptly to frequency.
➥
•In memory scan;scan resumes promptly to memory
channel.
➥
•In priority memory scan; scan resumes to priority channel, 
NOTE:Be sure to connect the supplied microphone
hanger to the vehicle’s ground for on/off hook microphone
functions. (p. 12)
Dualwatch
Dualwatch monitors priority channel while you are receiving
an other channel (VFO or memory channel).
•If a signal is received on pri-
ority channel, dualwatch
pauses on priority channel
until the signal disappears.
•To transmit on the selected
channel during dualwatch,
push and hold PTT.
ï ï
Operation
qSelect the desired operating channel (VFO or Memory
channel).
wPush and hold [PRI] for 1 sec. to start dualwatch.
‘P’blinks during dualwatch.
eTo cancel dualwatch, push [PRI] again.
VFO
frequency
or
memory
 channel Priority
channel
5 sec. 250 msec.