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Socket IC-4088A - page 1
INSTRUCTION MANUAL FRS UHF FM TRANSCEIVER i4088A This device complies with Part 15 of the FCC rules. Oper- ation is subject to the following two conditions: (1) This de- vice may not cause harmful interference, and (2) this device must accept any interference received, including in- terference that may cause undesired operation. IC-4088A_2.qxd 03.6 ...
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Socket IC-4088A - page 2
i FOREWORD Thank you for purchasing the IC-4088A FRS FM transceiver . This FRS (Family Radio Service) FM transceiver meets the FCC regulation (FCC Part 95). This transceiver is designed for those who require top-grade quality , performance and outstanding re- liability under the most demanding conditions. D D FEA TURES ❍ Free of user -license and ...
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Socket IC-4088A - page 3
■ W A TER-RESIST ANT* CONSTRUCTION W ater-resistant* construction is employed, and this unit can be used in a wide range of applications. *Meets JIS water-protection specification grade 4 . ■ GROUP MODE (BUIL T -IN CTCSS: Continuous T one Coded Squelch System ) CTCSS encoder/decoder are standard, providing quiet stand-by . Audio (voice) signal ...
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Socket IC-4088A - page 4
iii IMPOR T ANT READ ALL INSTRUCTIONS carefully and completely before using the transceiver . SA VE THIS INSTRUCTION MANUAL— This instruction man- ual contains important operating instructions for the transceiver . PRECAUTION R DANGER! NEVER operate the transceiver near un- shielded electrical blasting caps or in an explosive atmosphere. R W ARNI ...
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Socket IC-4088A - page 5
iv 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 chil ...
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Socket IC-4088A - page 6
v T ABLE OF CONTENTS FOREWORD …………………………………………………………………… i SUPPLIED ACCESSOR Y ……………………………………………………… ii IMPOR T ANT …………………………………………………………………… iii PRECAUTION ………………………………………? ...
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Socket IC-4088A - page 7
1 1 PREP ARA TION 1 ■ Belt clip attachment 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 BA TTERY P ACK as illustrated below . q Remove the battery case cover from the transceiver . w Install 3 × R6 (AA) size alka- li ...
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Socket IC-4088A - page 8
2 2 P ANEL DESCRIPTION ■ Switches, controls, keys and connectors q Antenna Function display (p. 4) Speaker Microphone w e r t y u i IC-4088A_2.qxd 03.6.23 11:58 Page 2 (1,1) ...
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Socket IC-4088A - page 9
3 2 P ANEL DESCRIPTION 2 q EXTERNAL SPEAKER AND MICROPHONE JACKS Connect an optional speaker-microphone or headset, if desired. 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 ...
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Socket IC-4088A - page 10
4 2 P ANEL DESCRIPTION ■ Function display q KEY LOCK INDICA TOR Appears during the key lock function ON. w BUSY INDICA T OR Appears while receiving a signal or when the squelch is open. e VOICE SCRAMBLER INDICA T OR Appears while the voice scrambler function is in use. r AUT O POWER OFF INDICA T OR Appears while the auto power of f function is ON ...
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Socket IC-4088A - page 11
5 3 BA TTER Y CHARGING 2 3 ■ Battery caution CAUTION NEVER short the terminals. NEVER mix old and new batteries. NEVER incinerate used battery cells. Internal battery gas may cause explosion. Make sure all battery cells are the same brand, type and capacity . A VOID over charging — The BP-202 can be charged during oper- ation when the AC adapte ...
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Socket IC-4088A - page 12
6 3 BA TTERY CHARGING ■ Charging connections D D Regular 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 IMPORT ANT!: Use the BC-149A or CP-18A ONL Y . Other type of AC adapter , cigarette lighter cable or DC power cable with an exter ...
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Socket IC-4088A - page 13
7 3 BA TTERY CHARGING 3 D D Rapid charging with the BC-1 19N+AD-105 q Insert the optional AD-105 DESKTOP CHARGER ADAPTER into the charging slot of the BC-1 19N. w Insert the battery pack, either by itself or attached to the trans- ceiver , into the charger . IC-4088A BP-202 AD-105 BC-1 19N AC adapter NOT used: Fix the 3-pin connector to the bottom ...
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Socket IC-4088A - page 14
8 4 BASIC OPERA TION ■ Power ON ➥ Push [PWR] for 1 sec. to turn the power ON. •“ ” and operating channel num- ber appear on the display . ■ Adjusting the volume q Push and hold [MODE] for 1 sec. to open the squelch (monitor function ON). •“ ” indicator appears on the dis- play while the squelch is open. w Adjust the audio to a sui ...
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Socket IC-4088A - page 15
9 4 BASIC OPERA TION 4 ■ Selecting the operating channel Push [ 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. T o keep the automatic selection, release the [ ...
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Socket IC-4088A - page 16
10 5 RECEIVE AND TRANSMIT q Select 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. w Push and hold [PTT] to transmit then speak into the microphone. • Do n ...
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Socket IC-4088A - page 17
11 5 RECEIVE AND TRANSMIT 5 ✔ T alk Range The IC-4088A is designed to maximize performance and improve transmission range in the fi eld. 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 ...
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Socket IC-4088A - page 18
12 6 GROUP MODE (CTCSS) ■ Setting the group code The 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. T o turn ON the g ...
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Socket IC-4088A - page 19
13 6 GROUP MODE (CTCSS) 6 D D CTCSS code table (unit: Hz) CH Freq. CH Freq. CH Freq. CH Freq. 01 67.0 1 1 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 1 10.9 25 156.7 35 225.7 06 82.5 16 1 14.8 26 162.2 36 233.6 07 85.4 17 1 18.8 27 167.9 37 241.8 08 88.5 ...
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Socket IC-4088A - page 20
14 7 SCAN FUNCTION Scanning is an ef fi cient way to locate signals quickly over all chan- nels. Select scan resume condition in advance, using Initial Set Mode (p. 17) D Starting the scan ➥ While pushing [ Y ], push [ Z ] to start the scan. • “ - ” fl ashes. • While pushing [ Z ], pushing [ Y ] also starts the scan. • Push [ Z ] or [ ...
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Socket IC-4088A - page 21
15 8 RING FUNCTIONS 7 8 ■ Smart-Ring The ring function has an answer back feature. This allows con fi r- mation of whether or not a call has reached the receiving party even if the operator is temporarily away from the transceiver . q Set the same group channel number for all of the group transceivers. (See p. 12) w While pushing [PTT], push [ Y ...
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Socket IC-4088A - page 22
16 9 OTHER FUNCTIONS ■ V oice scrambler function The voice scrambler function provides communication privacy . q Push [MODE] twice to select voice scram - bler setting mode. •“ Sr- ” appears on the display . w Push [ Y ]/[ Z ] to turn the function ON and OFF . •“ ” appears when the voice scrambler is activated. e Push [MODE] to exit v ...
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Socket IC-4088A - page 23
17 9 9 OTHER FUNCTIONS D Beep tones ON/OFF Confirmation beep tones normally sound when a key is pushed. These can be turned ON or OFF . ON (on) : Emits con fi rmation beep. OFF (oF) : No con fi rmation beep. D D Scan resume type Select the scan resume type from timer scan and pause scan. T imer scan (tS) : Scan resumes after the speci fi ed time ...
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Socket IC-4088A - page 24
D Ring tone type Ring tone is selectable with 10 different indi- vidual sounds. D D LCD backlight The IC-4088A has LCD backlight light for nighttime operation, and the lighting condition can be selected to suits a speci fi c preference, from Auto, ON and OFF . Auto (At) : Lights when any switch, except [PTT], is pushed. When no key operation is pe ...
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Socket IC-4088A - page 25
19 9 9 OTHER FUNCTIONS ■ Lock function This function electronically locks all keys and switches to prevent accidental channel changes and function access. ➥ Continue to hold [PWR] down for 2 sec. after power ON to turn the lock function ON and OFF . •“ ” appears on the display . - Only [PWR] and [PTT] are functional. - The Ring function i ...
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Socket IC-4088A - page 26
20 9 OTHER FUNCTIONS ■ A TS (Automatic T ransponder System) This allows the user to con fi rm whether or not a call has reached the receiving party even if the operator is temporarily away from the transceiver . No “ Ring ” tone is emitted with this function. ➥ While pushing [PTT], push [MODE] to turn the function ON and OFF . •“ ” a ...
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Socket IC-4088A - page 27
21 9 OTHER FUNCTIONS 9 ■ Optional HM-75A functions The optional HM-75A allows remotely selected operating channels, open the squelch, etc. The switches on the HM-75A function as fol- lows. CAUTION: When connecting the HM-75A to the transceiver , make sure that power to the transceiver is turned OFF , other- wise the transceiver may malfunction. D ...
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Socket IC-4088A - page 28
22 10 SPECIFICA TIONS GENERAL • Frequency coverage : 462.5625 – 467.7125 MHz • No. of operating Ch. : 14 (simplex) • Mode : 1 1K0F3E (FM) • Frequency stability : ± 2.5 ppm • Channel separation : 25 kHz • Power supply requirement : 3 AA (R6) alkaline , BP-202, BC-149A (negative ground) or CP-18A • Current drain : Less than 500 mA ? ...
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Socket IC-4088A - page 29
23 10 SPECIFICA TIONS 10 D Channel number and group number Use this page to record a group operating channel number (see p. 9) and group code number (p. 12) for your reference. ï Channel frequency list Operating channel number Group code number CH Freq.(MHz) 1 462.5625 2 462.5875 3 462.6125 4 462.6375 5 462.6625 6 462.6875 7 462.7125 8 467.5625 9 ...
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Socket IC-4088A - page 30
24 11 OPTIONS BP-202 Ni-Cd BA TTERY P ACK 3.6V/700 mAh Ni-Cd battery pack. BC-1 19N DESKTOP CHARGER + AD-105 DESKTOP CHARGER ADAPTER Rapidly charges battery pack in 1 to 1.5 hrs. An AC adapter is packed with the BC-1 19N. The AD-105 must be used with the BC-1 19N for charging the battery pack. The CP-17L or OPC-515L can be used instead of the suppl ...
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Socket IC-4088A - page 31
25 12 MEMO 11 12 IC-4088A_2.qxd 03.6.23 11:58 Page 25 (1,1) ...
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Socket IC-4088A - page 32
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan A-6274D-1US- w Printed in Japan © 2003 Icom Inc. IC-4088A_2.qxd 03.6.23 11:58 Page 26 (1,1) ...
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