Icom Ic-4088a Frs Uhf Fm Transceiver Instruction Manual

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3
BATTERY CHARGING
23
Battery cautionCAUTION NEVERshort the terminals. 
NEVERmix old and new batteries.
NEVERincinerate used battery cells. Internal battery gas may
cause explosion.
Make sureall battery cells are the same brand, type and capacity.
AVOID over charging— The BP-202 can be charged during oper-
ation when the AC adapter or the optional cigarette lighter cable is
connected. To prevent over charging, the IC-4088A has charging
timer that automatically disconnecting the charging line...

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BATTERY CHARGING
Charging connectionsD
DRegular charging with the BC-149A, CP-18A➥Connect the optional BC-149A
AC ADAPTER
or CP-18A
CIGARETTE
LIGHTER CABLE
to [DC 6V].
•Charging period: approx. 15 hours
IMPORTANT!:
Use the BC-149A or CP-18AONLY. Other type of AC adapter,
cigarette lighter cable or DC power cable with an external power
supply may damage the transceiver.
The optional BP-202 can only be charged— other AA (R6) size
rechargeable Ni-Cd cannot be charged.
BE SUREto disconnect the CP-18A...

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3
BATTERY CHARGING
3
D DRapid charging with the BC-119N+AD-105qInsert the optional AD-105 
DESKTOP CHARGER ADAPTER
into the
charging slot of the BC-119N.
wInsert the battery pack, either by itself or attached to the trans-
ceiver, into the charger. 
IC-4088ABP-202
AD-105
BC-119N AC adapter
NOT used: 
Fix the 3-pin connector to the bottom of the charger with the 
adhesive tape, etc., to prevent catching or touching the 3-pin 
connector’s terminals with the adapter’s leads, etc.*
*NOTE: Put the Ni-Cd...

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BASIC OPERATION
Power ON➥Push [PWR] for 1 sec. to turn
the power ON.•“ ” and operating channel num-
ber appear on the display.Adjusting the volumeqPush and hold [MODE] for
1 sec. to open the squelch
(monitor function ON).•“ ” indicator appears on the dis-
play while the squelch is open.wAdjust the audio to a suitable
level using [
VOL
].
ePush and hold [MODE] for
1 sec. to close the squelch.
✔What is squelch?A squelch circuit allows muting of undesired noise while receiving
no signal and emit audio...

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BASIC OPERATION
4
Selecting the operating channelPush [Y] or [Z] keys several times
until the desired operating channel
number appears on the display.
•While pushing and holding [Y] or
[Z] keys, the displayed channel
changes continuously until chan-
nel number “1” appears.
To keep the automatic selection,
release the [Y] or [Z] keys then
push and hold them again.
•When displayed channel stops at channel number “1,” a beep is
emitted. 
NOTE:
•The transceiver has 14 operating frequency channels.
• The...

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RECEIVE AND TRANSMIT
qSelect the desired operating
channel with [Y]/[Z].
When a signal is received:
• “” indicator appears on the
display.
•Squelch opens and audio is
emitted from the speaker.
- Further adjustment of [VOL]
may be necessary at this point.
wPush and hold [PTT] to transmit
then speak into the microphone.•Do not hold the transceiver too
close to your mouth or speak too
loudly. This may distort the sig-
nal.
•The transmit indicator “” ap-
pears on the display.eRelease [PTT] to return to...

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RECEIVE AND TRANSMIT
5
✔Talk Range
The IC-4088A is designed to maximize performance and improve
transmission range in the field. However, the single most impor-
tant factor in transmit range (talk power) is the surrounding envi-
ronment. These radios are “line of sight” radios and as such,
transmission range are influenced by the degree to which you
can “see” the other communicating party. Large concrete struc-
tures and heavy foliage or transmission from inside a building or
vehicle will reduce the...

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GROUP MODE (CTCSS)
Setting the group codeThe IC-4088A is equipped with 38 group codes. Group mode oper-
ation provides communication with silent standby since you will only
receive calls from group members using the same group number.
First of all, set the same group code number for all group member’s
transceivers.
To turn ON the group mode op-
eration:
qPush [MODE] to enter set mode.•“---” (group mode OFF) appears
on the display. wPush [Y] or [Z] to select the de-
sired code number.
ePush [MODE]...

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GROUP MODE (CTCSS)
6
D D
CTCSS code table
(unit: Hz) CH Freq. CH Freq. CH Freq. CH Freq.
01 67.0 11 97.4 21 136.5 31 192.8
02 71.9 12 100.0 22 141.3 32 203.5
03 74.4 13 103.5 23 146.2 33 210.7
04 77.0 14 107.2 24 151.4 34 218.1
05 79.7 15 110.9 25 156.7 35 225.7
06 82.5 16 114.8 26 162.2 36 233.6
07 85.4 17 118.8 27 167.9 37 241.8
08 88.5 18 123.0 28 173.8 38 250.3
09 91.5 19 127.3 29 179.9---OFF
10 94.8 20 131.8 30 186.2
✔What is CTCSS (Continuous Tone Coded Squelch System)
GROUP MODE ?
CTCSS...

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SCAN FUNCTION
Scanning is an efficient way to locate signals quickly over all chan-
nels. Select scan resume condition in advance, using Initial Set
Mode (p. 17)DStarting the scan➥While pushing [Y], push [Z] to
start the scan.
• “-” flashes.
• While pushing [Z], pushing
[Y] also starts the scan.
• Push [Z] or [Y] to change the
scanning direction or resume
the scan manually.
• To cancel the scan, push [Z]
(or [Y]) while [Y] (or [Z]) is
pushed, or push [PTT].
CH 14
CH 3
CH 2
CH 1
CH 4
CH 5
[Z][Y]...