Socket Mobile IC-4088A Stereo System User Manual
Contents
1. a hi EN a z 4 Alkaline cells Y NOTE Keep battery contacts clean It s good idea to clean bat Z tery terminals once a week Wi 2 PANEL DESCRIPTION E Switches controls keys and connectors 9 qe e Antenna display p 4 Microphone Speaker Po PANEL DESCRIPTION 2 EXTERNAL SPEAKER AND MICROPHONE JACKS Connect an optional speaker microphone or headset if desired VOLUME CONTROL VOL Rotate clockwise to increase and counterclockwise to decrease volume PTT SWITCH PTT Push and hold to transmit release to receive 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 CHANNEL UP SWITCH A Push to increment the operating channel Push and hold to increment the operating channel continu ously w While scanning changes scanning direction p 14 CHANNEL DOWN SWITCH V Push to decrement the operating channel Push and hold to decrement the operating channel continu ously While scanning changes scanning direction p 14 POWER SWITCH PWR Push to turn the power ON Push and hold this key to toggle the key lock function ON OFF p 19 EXTERNAL DC IN JACK DC 6V p 6 Connects the optional AC adapter or cigarette lighter cable for both operation and battery chargin2. FRS UHF FM TRANSCEIVER IC 4088A 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 Icom Inc 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 FEATURES O Free of user license and applications O Voice scrambler function for communication privacy O External DC IN jack for both operation and battery charging Optional BC 149A or CP 18A is required O All 14 FRS channels are available O Powerful 500 mW ERP high output power O 38 convenient group channels E ATS Automatic Transponder System This convenient function automatically checks station availability within the operating range and alerts you via function display in dication 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 12 E WATER RESISTANT CONSTRUCTION Water resistant construction is employ
3. eee eee eee e eee eee a eeeaee 12 T SCAN FUNCTION pos sssiseseren neac uenet awu g an an sana nang aaa e gan aaa nn 14 8 RING FUNCTIONS ou cce cee eeeeeeeeeeeeeeeeeeeaeeeeaeeeeaeeeeaeeeaeeanes 15 E Smart Ring we 15 W Call RING Jaa esa aaa tate aa aa ate ede aga data tan ae K EE aia na aga aan tect 15 9 OTHER FUNCTIONS 16 21 E Voice scrambler function_ seer eaaa nenen n een nane 16 E Initial set mode we 16 BL Lock TUNGUON akis Aan gag Da A KA Na KA NAN KENANG ga A ANG A rs 19 E Low battery indicator aee aee aane eaaa n anana eee eee ee 19 E Auto power save sat 19 E ATS Automatic Transponder System ccceccee eee eee e eae 20 E Resetting the transceiver cece cece ee eee eee anana anana e eens E Optional HM 75A functions 10 SPECIFICATIONS A TOP 0 aia aa Naane aga gaga a Na ak a NGA AAL ISTIE ND CVN Ka aa TA MEMO oriin soan edadura a aaa a We Wg Gg a Ga E NGE aa ga daa Toi KEH PREPARATION 1 E Belt clip attachment Attach the belt clip using the supplied screw Conveniently attaches to a belt E Battery installation Install 3 R6 AA size alkaline cell batteries or the optional BP 202 BATTERY PACK as illustrated below Remove the battery case cover from the transceiver Install 3xR6 AA size alka line cell batteries or BP 202 e Be sure to observe the cor rect polarity
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 aos OFF 10 94 8 20 131 8 30 186 2 unit Hz V What is CTCSS Continuous Tone Coded Squelch System GROUP MODE CTCSS Continuous Tone Coded Squelch System GROUP MODE allows communication with silent stand by Only signals containing a specific group code can open the squelch This conveniently eliminates unwanted audio and is useful in group activities or security related activities where unwanted out put can be a problem Note that CTCSS group mode is not pri vate anyone can receive your calls The IC 4088A is equipped with 38 tone codes for CTCSS GROUP MODE use Selecting a code applies it to all 14 operating chan nels Each push of PTT superimposes your group code over your transmit signal and only signals containing the same code can open your squelch To temporarily hear all signals including noise push and hold MODE Do not use CTCSS GROUP MODE if you want to be able to hear signals on all channels EE 7 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 CoH GD Starting the scan While pushing A push V to start the scan e flashes e While pushing V pushing A also starts the scan e Push V or A to change the scanning direction or resume A N FM
5. TRANSCEIVER the scan manually e To cancel the scan push V V W E or A while A or W is OB pushed or push PTT lt LICENSE FREE P PRO Ng RING FUNCTIONS EEE E Smart Ring The ring function has an answer back feature This allows confir mation of whether or not a call has reached the receiving party even if the operator is temporarily away from the transceiver Set the same group channel number for all of the group transceivers See p 12 While pushing PTT push A e A beep is emitted and g blinks on the display Release the PTT e When a member of a specific A mamn RO group answers a call the trans gt vo am ceiver emits beep tones for OO 10 sec and blinks g e When no answer comes back the transceiver emits short faint beep tones Push PTT to answer and to stop the beeps and flashing NOTE This function is available only when the called station has Z set the same group number and the same operating channels Yas you E Call Ring Sends the ring tones during trans MoN mit mode ai w While pushing PTT push V to send a ring tone PTT e The ring tone is emitted while a pushing V H e The microphone signal is auto matically cut while pushing W Mg Owe Down I O OTHER FUNCTIONS E Voice scrambler function The voice scrambler function provides communi
6. installed batteries will become exhausted FCC WARNING NEVER open the transceiver s case to make any internal adjustments changes or modifications by a person who not expressly approved by Icom Inc could void your au thority to operate this transceiver under FCC regulations Any transceiver s adjustments replacement must be made by a qualified technician using the proper test equipment TABLE OF CONTENTS FOREWORD 5 sesana eain anien aae apd ae a mala a Ba A mania b naa Sed Samet i SUPPLIED ACCESSORY ii IMPORTANT oooi wee iij PRECAUTION iii iv TABLE OF CONTENTS miraa e ea a a saat sa a a i o v T PREPARATION e undo ana aan ae ga ESCO a a aaa an VEV a Ta 1 E Belt clip attachment ra WH Battery installation eee reer arenes 1 2 PANEL DESCRIPTION 0 cccssseeeeeeeeeee 1 2 4 WH Switches controls keys and CONNECHOIS aaa aaa eee eeeee ee E Function display aeee 3 BATTERY CHARGING M Battery CAUthON sas asia bandan eaaa kiguh dies aed aja eta dete aa aa pa E Charging connections 4 BASIC OPERATION cccecceeeeeeeeeeeeeseeeeseeeeeeeeeeseeeeeeeeeaeues E Pow ON oie vice chin nett cok venom cece thease aa SEN akan aa BINA E Adjusting the volume ae E Selecting the operating channel sasae eee eaaa e eee eee 5 RECEIVE AND TRANSMIT 10 11 6 GROUP MODE CTCSS 12 13 M Setting the group code
7. of operating Ch e Mode e Frequency stability e Channel separation e Power supply requirement negative ground e Current drain e Operating temp range e No of CTCSS freq e Dimensions projections not included e Weight TRANSMITTER e Output power e Maximum deviation e Spurious emissions e Ext mic connector RECEIVER e Receiver system e Sensitivity 12 dB SINAD e Selectivity e Spurious amp image rejection e Adjacent Ch rejection e Intermodulation rejection e Audio output power at 4 5 V DC e Ext speaker connector 462 5625 467 7125 MHz 14 simplex 11KOF3E FM 2 5 ppm 25 kHz 3 AA R6 alkaline BP 202 BC 149A or CP 18A Less than 500 mA 4 F to 122 F 20 C to 50 C 38 2 46 W x41 2 H x1 46 D in 52 5 W x102 5 H x26 9 D mm 200 g 7 oz including 3xAA R6 batteries Less than 500 mW ERP 2 5 kHz Less than 40 dB 3 conductor 2 5 d mm 2 2 kQ Double conversion superheterodyne Less than 0 2 pV More than 8 5 kHz 6 dB More than 40 dB More than 40 dB More than 40 dB More than 100 mW at 10 distortion with an 8 Q load 3 conductor 3 5 d mm 8 Q All stated specifications are subject to change without notice or obligation SPECIFICATIONS 10 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 Operating chan
8. the BC 149A or CP 18A ONLY Other type of AC adapter Z cigarette lighter cable or DC power cable with an external power Y supply may damage the transceiver The optional BP 202 can only be charged other AA R6 size Z rechargeable Ni Cd cannot be charged Y BE SURE to disconnect the CP 18A from the cigarette lighter socket when charging is finished because a slight current still follows in the CP 18A and the vehicle s battery will become ex Z hausted WS RAGA WN BATTERY CHARGING 3 Rapid charging with the BC 119N AD 105 Insert the optional AD 105 DESKTOP CHARGER ADAPTER into the charging slot of the BC 119N Insert the battery pack either by itself or attached to the trans EM ceiver into the charger IC 4088A Turn the power OFF When the installed Ni Cd battery is nearly exhausted and the function display blinks in intermittently push PWR until the trans ceiver s power goes OFF NOTE Put the Ni Cd battery adapter into the AD 105 rear slot when the BP 202 is attached to the transceiver AC adapter EN 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 NI BASIC OPERATION E Power ON Push PWR for 1 sec to turn the power ON e g and operating channel num ber appear on the display E Adjusting
9. the volume Push and hold MODE for 1 sec to open the squelch VOL monitor function ON e wy indicator appears on the dis Appears play while the sguelch is open Adjust the audio to a suitable level using VOL PRO Push and hold MODE for KAANGGEN MODE an 1 sec to close the squelch mora lt gt S V What is squelch A squelch circuit allows muting of undesired noise while receiving no signal and emit audio while receiving signals This provides quiet standby The MODE key changes the squelch setting This is useful to listen to weak signals that do not open the squelch BASIC OPERATION 4 E Selecting the operating channel Push A or V keys several times until the desired operating channel number appears on the display e While pushing and holding A or W keys the displayed channel changes continuously until chan nel number 1 appears A a paman O To keep the automatic selection e eam release the A or V keys then V Oe push and hold them again e When displayed channel stops at channel number 1 a beep is emitted YW NOTE e The transceiver has 14 operating frequency channels e The selected channel is memorised when the transceiver is turned off RO wn 9 5 RECEIVE AND TRANSMIT Select the desired operating channel with A V When a signal is received e yp indicator appears on the display e Squelc
10. timer will reset and start charging again when disconnect then re connecting the AC adapter or CP 18A more than 1 min interval Recommended temperature range for charging 50 F to 104 F 10 C to 40 C The optional BP 202 BATTERY Pack includes rechargeable Ni Cd batteries and can be charged approx 300 times Charge the battery pack before first operating the transceiver or when the battery pack becomes exhausted If the battery pack seems to have no capacity even after being fully charged completely discharge it by leaving the power ON all day Then fully charge the battery pack again If the battery pack still does not retain a charge or very little a new battery pack must be purchased Recycling information U S A only The battery BP 202 that you have purchased is recyclable At the end of its life under various state and local laws it may be illegal to dispose of this battery into the municipal waste stream Call 1 800 822 8837 for battery recycling options in your area or contact your dealer 4 O 3 BATTERY CHARGING E Charging connections 9 Regular charging with the BC 149A CP 18A Connect the optional BC 149A ac ADAPTER or CP 18A CIGARETTE LIGHTER CABLE to DC 6V e Charging period approx 15 hours Optional CP 18A Cigarette lighter cable with DC DC converter to cigarette lighter socket gt TT to DC 6V jack Z IMPORTANT Y Use
11. cation privacy Push MODE twice to select voice scram bler setting mode e Sr appears on the display Push A V to turn the function ON and OFF aD appears when the voice scrambler is activated Push MODE to exit voice scrambler set ting mode NOTE All transceivers in a specific group MUST turn ON the voice scrambler func Z tion Otherwise the communication will not 7 possible MWA AA E initial set mode SS Ta Sara S kaka es Ma IN 1 kah at Initial set mode is accessed at power ON and allows the setting of seldom changed settings In this way the user can customize trans ceiver operations to suit specific preferences and operating style Entering initial set mode While pushing MODE push PWR for 1 sec to enter initial set mode Push MODE to select the de sired item Q Push A V to select the con dition or value as desired Push PWR to exit initial set mode OTHER FUNCTIONS 9 Beep tones ON OFF Confirmation beep tones normally sound when a key is pushed These can be turned ON or OFF ON on OFF oF Emits confirmation beep No confirmation beep Scan resume type Select the scan resume type from timer scan and pause scan Timer scan tS Scan resumes after the specified time period even signal is received Pause scan PS Scan pauses until the sig nal disappears Time out timer Th
12. e quired additionally HS 94 Earhook type HS 95 Neck arm type HS 97 Throat microphone MEMO 12 EE Count on us A 6274D 1US Printed in Japan com NG 2003 Icom Inc 1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan
13. e time out timer limits continuous trans mission time period to prevent accidental prolonged transmission such as when using the PTT hold function The time period can be specified within 1 30 min in 1 min steps Auto power OFF timer When signal is received or no opera tion is performed for the set period the transceiver turns power OFF automat ically e ais T r mi wy at 4 I oa a aa a k M 1 nai m a L l S l T x Appears when the auto 30 min 1 and 2 hours timers are available power off function is in use 17 Q OTHER FUNCTIONS Ring tone type Ring tone is selectable with 10 different indi vidual sounds LCD backlight The IC 4088A has LCD backlight light for nighttime operation and the lighting condition can be selected to suits a specific preference from Auto ON and OFF Auto At Lights when any switch except PTT is pushed When no key operation is performed for 5 sec the backlight goes OFF ON on Lights continuously OFF oF Never lights OTHER FUNCTIONS 9 E Lock function This function electronically locks all keys and switches to prevent accidental channel changes and function access Continue to hold PWR down for or 2 sec after power ON to turn the lock 4 function ON and OFF E e O appears on the display Only PWR and PTT are functiona
14. ed and this unit can be used in a wide range of applications Meets JIS water protection specification grade 4 E 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 E 2 types of Ring function The Smart Ring function and the Call Ring function are avail able for smart and simple station calls providing a telephone style ring when called 10 different ringing tones are available p 18 SUPPLIED ACCESSORY Belticlipy 1 sigs hee Rhee 1 Icom Icom Inc and the com are registered trademarks of Icom Incor porated Japan in the United States the United Kingdom Germany France Spain Russia and or other countries IMPORTANT READ ALL INSTRUCTIONS carefully and completely before using the transceiver SAVE THIS INSTRUCTION MANUAL This instruction man ual contains important operating instructions for the transceiver PRECAUTION ZA DANGER NEVER operate the transceiver near un shielded electrical blasting caps or in an explosive atmosphere Z 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
15. g a A 2 PANEL DESCRIPTION E Function display KEY LOCK INDICATOR Appears during the key lock function ON BUSY INDICATOR Appears while receiving a signal or when the squelch is open VOICE SCRAMBLER INDICATOR Appears while the voice scrambler function is in use AUTO POWER OFF INDICATOR Appears while the auto power off function is ON LOW BATTERY INDICATOR Appears or blinks when the battery decreases to a specified level GROUP NUMBER INDICATOR Indicates the selected group number during the group function ON CHANNEL NUMBER INDICATOR Indicates the selected operating channel number POWER ON INDICATOR Appears while the power is ON 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 TRANSMIT INDICATOR Appears during PTT ON BATTERY CHARGING 3 E 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 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 electroni cally after 15 hours from charging However the charging
16. h opens and audio is emitted from the speaker Further adjustment of VOL may be necessary at this point Push and hold PTT to transmit then speak into the microphone e Do not hold the transceiver too close to your mouth or speak too loudly This may distort the sig nal e The transmit indicator A ap pears on the display Mas Release PTT to return to re OS ceive Dow Z IMPORTANT 4 To maximize the readability of the transmitted signal pause a Z few sec after pushing PTT hold the transceiver 4 to 6 in 10 to Z 15 cm from your mouth and speak at a normal voice level Z NOTE Z The transceiver has an auto power save function to conserve the battery power The power save function activates automati YU cally when no signal is received for 5 sec RECEIVE AND TRANSMIT 5 V 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 talk power range e Optimal range wide open areas free of obstructions e Medium range large buildings or trees blocking you
17. l O appears when the The Ring function is also available lock function is in use See p 15 E Low battery indicator EM Appears when the battery is nearing exhaustion 4 A warning beep is emitted while turn ia ing the power ON Blinks when battery replacement is Appears when the battery necessary is nearing exhaustion e When the indicator blinks the trans Blinks when battery ceiver may not be operated Not eplacement is necessary guaranteed E Auto power save The power save function reduces the current drain to conserve battery power The function automatically turns ON when no operation is per formed and no signal is received for 5 sec Q OTHER FUNCTIONS E ATS Automatic Transponder System This allows the user to confirm 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 e g appears on the display e The transceiver starts to senda PTT searching signal every 60 sec When the transceiver receives an answer back signal g meet fae stays on the display until the M DE fot search jana Mog e If no reply is received blinks until the next search transmit lt LICENSE FREE P UP PRO FM TRANSCEIVER GY NOTE Above setting is for the calling station
18. nel number Group code number Channel frequency list CH Freq MHz 462 5625 462 5875 462 6125 462 6375 462 6625 462 6875 462 7125 467 5625 467 5875 10 467 6125 11 467 6375 12 467 6625 13 467 6875 14 467 7125 OANDARWND 11 OPTIONS BP 202 Ni Cd BATTERY PACK 3 6V 700 mAh Ni Cd battery pack BC 119N 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 119N The AD 105 must be used with the BC 119N for charging the battery pack The CP 17L or OPC 515L can be used instead of the supplied AC adapter p 7 BC 149A ac ADAPTER Regularly charges installed BP 202 in 15 hours approx Operation for both transmit and receive also possible with this adapter Output voltage 6 V DC Current capacity TA CP 18A CIGARETTE LIGHTER CABLE Allows you to operate the transceiver through a 12 V cigarette lighter socket and also charges the installed battery regularly A DC DC converter is built in HM 46 HM 75A HM 131 SPEAKER MICROPHONES HM 46 Compact size with transmission LED indicator HM 75A Remote control capability See p 21 for details HM 131 Compact and durable construction HM 128 EARPHONE MICROPHONE HS 85 HEADSET Over head arm style headset VOX and one touch PTT functions are avail able VS 1 VOK PTT CASE HS 94 HS 95 HS 97 Separated VOX PTT unit and one of the following microphone unit is r
19. only A called party automatically sends an answer back signal without any preset Z tings All C 4088A s operating on the same operating channel Z will answer back to the call in the surroundings communications area NS WY E Resetting the transceiver Initialize the operating conditions before using the transceiver for the first time or if the function display shows erroneous information While pushing V and MODE push PWR for 1 sec to initial pwR ize the transceiver MODE mansa S 7 CAUTION Resetting the trans gt whe cla Y ae returns all settings to V wee their defaults OTHER FUNCTIONS 9 E 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 Y CAUTION When connecting the HM 75A to the transceiver Z make sure that power to the transceiver is turned OFF other Z wise the transceiver may malfunction Switch action SWITCH NORMAL While holding HM 75A s PTT A Smart Ring No function B Open squelch No function UP Change the oper ating channel Smart Ring A number up Change the oper ating channel Call Ring DOWN number down PTT switch gt Lock switch Locks all switches except PTT Earphone jack 21 EE 0 SPECIFICATIONS GENERAL e Frequency coverage e No
20. r line of sight e Minimum range mountainous areas or areas of heavy foliage 11 NI 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 To turn ON the group mode op eration Push MODE to enter set mode e group mode OFF appears on the display Push A or V to select the de sired code number Push MODE twice to set the group code number and exit set mode To cancel the group mode oper ation Push MODE to enter set mode e Channel number disappears on the display Push A or V to select group mode OFF Push MODE twice to cancel the group mode and return to operating condition Y fal E La Y NOTE Only stations with the same group channel number can be heard during group mode operation even when the busy in Z dicator appears on the display GROUP MODE CTCSS 6 CTCSS code table 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
21. transmitting The transceiver will perform best if the microphone is 2 to 4 in 5 to 10 cm away and the transceiver is vertical Z WARNING NEVER operate the transceiver with a headset or other audio accessories at high volume levels Hear ing experts advise against continuous high volume operation If you experience a ringing in your ears reduce the volume or dis continue 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 trans mit PRECAUTI ON 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 dren AVOID using or placing the transceiver in direct sunlight or in areas with temperatures below 4 F 20 C or above 122 F 45020 The use of non lcom battery packs chargers may impair trans ceiver performance and invalidate the warranty Even when the transceiver power is OFF a slight current still flows in the radio Remove the alkaline cells or battery pack from the transceiver when not using it for a long time Other wise the
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