INSTRUCTION MANUAL
LPD FM HANDHELD TRANSCEIVER
i4088E
FOREWORD
Thank you for purchasing the IC-4088E LPD (Low Power Device) FM transceiver. This LPD FM transceiver meets the European LPD specification (EN 300 220). This transceiver is designed for those who require top-grade quality, performance and outstanding reliability under the most demanding conditions.
D FEATURES
Free of user-license and applications
Voice scrambler function for communication privacy
External DC-IN jack for both operation and battery charging
(Optional BC-149D or CP-18E is required)
All 69 LPD channels are available
38 convenient group channels
■ ATS (Automatic Transponder System)
This convenient function automatically checks station availability within the operating range, and alerts you via function display indication. (p. 20)
In addition, a manual transponder is also available for “GROUP MODE” operation to check availability of stations in a specified group within the operating range. In this case, the transceiver alerts you via beeps. (p. 15)
■ WEATHER-RESISTANT* CONSTRUCTION
Weather-resistant* construction is employed, and this unit can be used in a wide range of applications.
*Meets JIS water-protection specification grade 4.
i
■ GROUP MODE (BUILT-IN CTCSS: Continuous Tone
Coded Squelch System)
CTCSS encoder/decoder are standard, providing quiet stand-by. Audio (voice) signals are output only when a signal with matched CTCSS tone signal is received. This is very helpful for group communications. In addition, 38 different CTCSS frequencies are available. (p. 12)
■ 2 types of “Ring” function
The “Smart-Ring” function and the “Call-Ring” function are available for smart and simple station calls providing a telephonestyle ring when called. 10 different ringing tones are available. (p. 18)
SUPPLIED ACCESSORY
• Belt clip ………………………………… 1
Icom, Icom Inc. and the 
are registered trademarks of Icom Incorporated (Japan) in the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries.
ii
IMPORTANT
READ ALL INSTRUCTIONS carefully and completely before using the transceiver.
SAVE THIS INSTRUCTION MANUAL— This instruction manual contains important operating instructions for the transceiver.
PRECAUTION
RWARNING! 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 and the transceiver is vertical.
RWARNING! 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 or discontinue use.
NEVER attempt to charge alkaline cell batteries. Be aware that external DC power connections will charge batteries inside the battery case. This will damage not only the battery case but also the transceiver.
DO NOT push the PTT when not actually desiring to transmit.
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PRECAUTION— continued
USE the optional AC adapter or cigarette lighter cable only for both operating the transceiver and charging the battery. Other manufacturer’s AC adapter, cigarette lighter cable or DC power cable with external power supply may damage the transceiver.
Place the unit in a secure place to avoid inadvertent use by children.
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 +55°C.
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 radio. Remove the alkaline battery cells or battery pack from the transceiver when not using it for a long time. Otherwise, the installed batteries will become exhausted.
When the battery voltage becomes below 3.24 V, the performance of the transceiver cannot be guaranteed due to the regulation.
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TABLE OF CONTENTS
FOREWORD …………………………………………………………………… i SUPPLIED ACCESSORY……………………………………………………… ii IMPORTANT …………………………………………………………………… iii PRECAUTION ……………………………………………………………… iii–iv TABLE OF CONTENTS ……………………………………………………… v
1 PREPARATION …………………………………………………………… 1
■Belt clip attachment ……………………………………………………… 1
■Battery installation ……………………………………………………… 1
2 PANEL DESCRIPTION ………………………………………………… 2–4
■Switches, controls, keys and connectors ……………………………… 2
■Function display ………………………………………………………… 4
3 BATTERY CHARGING ………………………………………………… 5–7
■Battery caution …………………………………………………………… 5
■Charging connections …………………………………………………… 6
4 BASIC OPERATION …………………………………………………… 8–9
■Power ON ………………………………………………………………… 8
■Adjusting the volume …………………………………………………… 8
■Selecting the operating channel………………………………………… 9
5RECEIVE AND TRANSMIT ………………………………………… 10–11
6GROUP MODE (CTCSS) …………………………………………… 12–13
■Setting the group code ………………………………………………… 12
7SCAN FUNCTION ………………………………………………………… 14
8RING FUNCTIONS ……………………………………………………… 15
■Smart-Ring ……………………………………………………………… 15
■Call-Ring ………………………………………………………………… 15
9OTHER FUNCTIONS ………………………………………………… 16–21
■Voice scrambler function ……………………………………………… 16
■Initial set mode ………………………………………………………… 16
■Lock function …………………………………………………………… 19
■Low battery indicator …………………………………………………… 19
■Auto power save………………………………………………………… 19
■ATS (Automatic Transponder System) ……………………………… 20
■Resetting the transceiver ……………………………………………… 20
■Optional HM-75A functions …………………………………………… 21
10SPECIFICATIONS …………………………………………………… 22–23
11OPTIONS…………………………………………………………………… 24
12CE …………………………………………………………………………… 25
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PREPARATION |
1 |
■ Belt clip attachment |
1 |
Attach the belt clip using the supplied screw. Conveniently attaches to a belt.
■ Battery installation
Install 3 R6 (AA) size alkaline cell batteries or the optional BP-202 as illustrated below.
qRemove the battery case cover from the transceiver. wInstall 3×R6 (AA) size alkaline cell batteries or BP-
202.
• Be sure to observe the correct polarity.
BP-202
Alkaline cells
NOTE: Keep battery contacts clean. It’s good idea to clean bat- 
tery terminals once a week.
1
2 PANEL DESCRIPTION
■Switches, controls, keys and connectors
q
w |
Antenna |
Function e
display
(p. 4)
r |
i |
|
t |
||
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||
y |
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u |
Microphone |
|
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||
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Speaker |
2
PANEL DESCRIPTION 2
q EXTERNAL SPEAKER AND MICROPHONE JACKS
Connect an optional speaker-microphone or headset, if desired.
2
w VOLUME CONTROL [VOL]
Rotate clockwise to increase and counterclockwise to decrease volume.
e PTT SWITCH [PTT]
Push and hold to transmit; release to receive.
r MODE SWITCH [MODE]
Push to enter and select set mode for group (p. 12) and voice scrambler code. (p. 16)
Push and hold for 1 sec. to turn the monitor function ON and OFF. (p. 8)
t CHANNEL UP SWITCH [Y]
Push to increment the operating channel.
Push and hold to increment the operating channel continuously.
While scanning, changes scanning direction. (p. 14)
y CHANNEL DOWN SWITCH [Z]
Push to decrement the operating channel.
Push and hold to decrement the operating channel continuously.
While scanning, changes scanning direction. (p. 14)
u POWER SWITCH [PWR]
Push to turn the power ON.
Push and hold this key to toggle the key lock function ON/OFF. (p. 19)
iEXTERNAL DC IN JACK [DC 6V] (p. 6)
Connects the optional AC adapter or cigarette lighter cable for both operation and battery charging.
3
2 PANEL DESCRIPTION
■ Function display
q w e |
r |
t |
!0 |
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|
o i |
u |
y |
q KEY LOCK INDICATOR
Appears during the key lock function ON. w BUSY INDICATOR
Appears while receiving a signal or when the squelch is open. e VOICE SCRAMBLER INDICATOR
Appears while the voice scrambler function is in use. r AUTO POWER OFF INDICATOR
Appears while the auto power off function is ON. t LOW BATTERY INDICATOR
Appears or blinks when the battery decreases to a specified level. y GROUP NUMBER INDICATOR
Indicates the selected group number during the group function ON. u CHANNEL NUMBER INDICATOR
Indicates the selected operating channel number. i POWER ON INDICATOR
Appears while the power is ON. o ANSWER BACK INDICATOR
Appears when you and your group are in the conversation area.
Blinks when you or your group is out of the conversation area.
!0TRANSMIT INDICATOR
Appears during PTT ON.
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