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IC-2720H Instruction Manual

1. Push the desired band s MAIN eBAND for 1 sec A Gd Ee DIAL Frequency band initial is displayed Push the desired band s MAIN BAND for 1 sec Frequency band initial appears Rotate the same band s DIAL to select the desired fre quency band e Pushing A W on the microphone also selects the band Push the MAIN BAND to return to frequency indication in the selected frequency band phone icon as at left designate operation via the HM 133 microphone 8 Note that in this manual sections beginning with a micro SETTING AFREQUENCY 2 VFO and memory modes IV U Push BAND to select main band The transceiver has 2 basic operating modes VFO mode and BANK 2 Push FUNC the push BANK 1 MONI to se memory mode Select VFO mode first to set an operating fre 2 lect frequency band selecting condition quency e The frequency band initial is displayed LV 3 Push A W to select the desired frequency ee Sol _ Jos band bg Push ctr A MW to exit the condition and re eth Ee 3 CZE turn to frequency indication ie gt Pa 4 EN uo v About extra frequency bands USA and General versions only In addition to the 2 m and 70 cm ham bands the IC 2720H USA and General versions have extra frequency bands for each left an
2. Push SET egg or LOWePRIO until SUb appears in the display as shown above E Transmitting CAUTION Transmitting without an antenna will damage the transceiver NOTE To prevent interference listen on the channel be fore transmitting by pushing DUP MONI for 1 sec or mon 1 BANK on the microphone Select the main band p 11 Set the operating frequency pgs 11 13 Select output power if desired See section at right for details Push and hold PTT to transmit EEB appears e The S RF indicator shows the output power selection A one touch PTT function is available See p 21 for details e Si may blinks instead of the sub band s memory channel num ber indication according to the selected frequency band Speak into the microphone using your normal voice level e DO NOT hold the microphone too close to your mouth or speak too loudly This may distort the signal Release PTT to return to receive IMPORTANT for 50 35 W transmission The IC 2720H is equipped with protection circuit to protect the power amplifier circuit from high SWR Standing Wave Ratio and temperature When a high SWR antenna or no antenna is connected or when the transceiver temperature becomes extremely high the transceiver reduces transmit output power to 15 W approx automatically BASIC OPERATION 3 E Selecting output power The transceiver has 3 output power leve
3. The microphone can also be used to program mem MW on channels Push FUNC then Ip A MW for 1 sec to program 1 Set the desired frequency in VFO mode 4 Push VFO LOCK to select VFO mode 3 beeps may sound and the VFO contents including Set the frequency using the keypad the subaudible tone frequency etc are programmed Memory channel number increases when continuing to Set other data e g offset frequency duplex direction sub audible tone encoder ON OFF and its frequency if neces sary Push FUNC then cLR A MW momentarily Push A or V to select the memory channel Direct numeral input cannot be used push cLR A MW after programming N w EXAMPLE Programming 145 870 MHz into E channel 20 blank channel via the microphone E OFF Sos DTCS rer pas all TONE TONE 2 MW Push wen ow Les LS les ou Bech mip 5 ED DUP d ES Push then MAIN emm Juk GO mu Er ma KUT TILL TN Beep gt Zell SKP ax Tx Tx is a ILI 2 ru E Transferring memory contents This function transfers a memory channel s contents to VFO or another memory call channel This is useful when search ing for signals around a memory channel frequency and for recalling the offset frequency subaudible tone frequency etc Memory call gt VFO E O gt E F Sele
4. SIE ENIS L Lett L Leet mel ee OCT El Time out timer To prevent accidental prolonged transmission etc the trans ceiver has a time out timer This function cuts a transmission OFF after 1 30 min of continuous transmission This timer can be cancelled s TOT OF The time out timer is turned OFF default e TOT 3 5 15 30 The transmission is cut OFF after the set period elapses Auto repeater U S A version only The auto repeater function automatically turns ON or OFF the duplex operation with a specified shift direction and tone en coder when the operating frequency falls within or outside of 145 200 145 495 146 610 146 995 147 000 147 395 442 000 444 995 and 447 000 449 995 MHz range The off set and repeater tone frequencies are not changed by the auto repeater function reset these frequencies if necessary OF The auto repeater function is turned OFF ert Activates for duplex only default er2 Activates for duplex and tone GENE ge e PENE e Pere I Auto power OFF The transceiver can be set to automatically turn OFF after a specified period with a beep when no key operations are per formed 30 min 1 hour 2 hours and OFF default can be specified The specified period is retained even when the transceiver is turned OFF by the auto power OFF function To cancel the function select OF in this set mode jg KISTE aa en Te LIT goles age OM el ole rutr l
5. DUAL BAND FM TRANSCEIVER IC 2720H This device complies with Part 15 of the FCC rules Operation is sub ject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Icom Inc FOREWORD Thank you for purchasing this Icom product The IC 2720H VHF UHF FM TRANSCEIVER is designed and built with Icom s su perior technology and craftsmanship With proper care this product should provide you with years of trouble free opera tion We want to take a couple of moments of your time to thank you for making your IC 2720H your radio of choice and hope you agree with Icom s philosophy of technology first Many hours of research and development went into the design of your IC 2720H FEATURES O V V U U simultaneous receive capability O Independent controls for each left and right bands O Separate controller for flexible installation O 50 W of high transmit output power VHF band 35 W for UHF 25 W for Taiwan version O Remote control microphone standard O New DMS Dynamic Memory Scan system IMPORTANT READ ALL INSTRUCTIONS carefully and completely before using the transceiver SAVE THIS INSTRUCTION MANUAL This in struction manual contains important operating instructions for the IC 2720H EXPLICIT DEFINITIONS WORD DEFINITION A WARNIN
6. C OT oe vzl Cooling fan control Selects the cooling fan control condition from Auto and ON e Auto At The fan rotates during transmit and for 2 min after transmission es ON On The fan continuously rotates VI EL Eee Epe oi wv IS mi fv IF Ka Data transmission speed Selects the data transmission speed for packet operation from 1200 bps default and 9600 bps miele 41 D bh St H FS Packet operation band Selects the packet operation band from auto right and left Auto At The main band is used for packet op eration e Left L Right r The selected left or right band can only be operated for packet Nr mv in OO H gt Z et OO GSE r 17 17 Pm we Fy Ki ZA r CH s OTHER FUNCTIONS 11 Squelch delay Selects squelch delay from short and long to prevent re peated opening and closing of the squelch during reception of the same signal es Short squelch delay default eL Long squelch delay I I Lo EC Lx fe I CO PoP e CT Be lt IILI al qe mw L Microphone sensitivity Selects the microphone sensitivity from high H and low L to suits your preference LI DI EM pi IL OI I 8 WN p A bows ZA mm e om I L Squelch attenuator Turns the squelch attenuator function ON and OFF es ON The squelch attenuator activates when SQL control is set between 12 o clock and fully clockwise position default
7. E Microphone keypad PANEL DESCRIPTION 1 ON p 49 sae Selects minus duplex operation p 24 Turns the subaudible tone encoder ON p 24 Selects plus duplex operation p 24 Turns the CTCSS pocket beep function ON p 53 a Selects simplex operation p 24 Turns the tone squelch function ON p 53 lt 4 o oa o fe es i So g ea 59 SS z bal 5 FEI 5 SEILER On E oi DI EK mi a Increases audio output level ECH E O lt Sends a 1750 Hz tone signal while pushing and holding p 26 KEY FUNCTION SECONDARY FUNCTION key OTHER FUNCTIONS Switches between opening and closing the In VFO mode enters operating band select mm squelch p 16 ing condition p 12 CHE In memory mode enters bank selecting condition p 35 Starts and stops scanning p 41 Starts and stops tone scanning p 55 Leo erm Starts and stops priority watch p 47 Turns the one touch PTT function ON and Geet OFF p 21 After pushing curs Selects high output power p 20 Turns the DTCS squelch ON p 53 Transmits the appropriate DTMF code pgs 26 50 Selects mid output power p 20 Turns the DTCS pocket beep function ON When the DTMF memory en Ip 53 coder is activated push 0 to Selects low output power p 20 Turns the DTMF memory encoder function 9 to transmit the appropriate DTMF mem
8. OF The squelch attenuator does not function E Ge A a ene TI HELENE HEL TV 11 OTHER FUNCTIONS Active band Selects the frequency selecting condition via DIAL or AT V on the microphone from all AL and single SI Sub band mute Turns the sub band function with sub band busy beep capa bility ON and OFF e All AL The operating frequency can be selected continuously default e Single SI The operating frequency can be selected within the current band Pushing MAINSBAND for 1 sec then tuning dial rota tion is necessary for frequency band selection LU or BT HI CC ALEN I DTMF speed The rate at which DTMF memories send individual DTMF characters can be set to accommodate operating needs sl 100 msec interval 5 0 cps speed default e2 200 msec interval 2 5 cps speed 3 300 msec interval 1 6 cps speed 5 500 msec interval 1 0 cos speed ri JA LI LA gt avi Cd oo s GAR No I rm tf dt ZA 4 Z D D DISPLAY SUB BAND MUTE BUSY BEEP SUb OF OFF OFF SUb OF OFF ON SUb On ON OFF SUb On Irch ON ON ent GURU SUR E AM FM narrow mode SET MODE The IC 2720H has AM mode reception for both the left and right bands and FM narrow mode is available for the left band Typically AM mode is used for the air band 118 135 995 MHz The FM narrow mode selection is available for the USA ver sion
9. Weather channel selection MAIN J ril I role d Push the desired band s M CALL MW several times to select weather channel group Rotate the same band s DIAL to select the desired weather channel Push the M CALL MW to select memory mode or push the V MHzeSCAN to select VFO mode Weather alert function NOAA broadcast stations transmit weather alert tones before important weather announcements When the weather alert function is turned ON the selected weather channel is moni tored each 5 sec for the announcement When the alert sig nal is detected the Al and the WX channel are displayed alternately and sounds a beep tone until the transceiver is op erated The previously selected used weather channel is checked periodically during standby or while scanning Select the desired weather channel Turn the weather alert function ON in set mode Push SET gx3 to enter set mode Push SET x3 or LOWePRIO to select the weather alert item then rotate the DIAL to set ON Push TONE DTMF to exit set mode Sets the desired stand by condition e Selects VFO memory or call channel e Scan or priority watch operation can also be selected When the alert is detected a beep sounds and the follow ing indication will be displayed CH ii ALE prp SE ou sone e Shows above indications alternately Turn the weather alert function OF
10. p ola gt LI e e pings HO HO 4 ULI a der mn a LOD r fe dE Repeater tone frequency Tone squelch frequency DTCS code p 57 DTCS polarity p 58 Offset frequency p 58 p 57 p 57 Appears when accessing from memory mode only A Available for USA versions only i Appears when accessing set mode from left band only I Does not appear when accessing set mode from 900 MHz band pe i i EE FU eet ses es FU SE sel i eee et Taa Ai gt En E O aleur SE Haun SF KET a SD EG I Mode selection p 59 4 Narrow setting p 59 Channel skip setting p 58 Scan resume timer p 58 Tuning step p 58 Count on us A 6124D 1EX Printed in Japan Icom Inc 2002 2003 Icom Inc 1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan
11. p 16 On 1 PANEL DESCRIPTION E Main unit DATA SOCKET DATA Connects a TNC Terminal Node Controller etc for data communications See p 6 for connection information MICROPHONE CONNECTOR MIC Connects the supplied or an optional microphone 8 V DC output Max 10 mA Channel up down 3 8 V control IN PTT GND microphone ground MIC microphone input GND Data IN CONTROLLER CONNECTOR CONTROLLER p V Connects the controller unit with the supplied cable COOLING FAN Rotates while transmitting Also rotates while receiving depending on the setting in ini tial set mode p 62 ANTENNA CONNECTOR ANT Connects a 50 Q antenna with a PL 259 connector and a 50 Q coaxial cable ANTENNA INFORMATION For radio communications the antenna is of critical impor tance to maximize your output power and receiver sensi tivity The transceiver accepts a 50 Q antenna and less than 1 1 5 of Voltage Standing Wave Ratio VSWR High SWR values not only may damage the transceiver but also lead to TVI or BCI problems EXTERNAL SPEAKER JACK 1 SP 1 Connects an 8 Q speaker Outputs both left and right bands audio when no external speaker is connected to SP 2 See the table below for details Audio output power is more than 2 4 W EXTERNAL SPEAKER JACK 2 SP 2 Connects an 8 Q speaker Outputs right band s audio only Audio output power
12. s left band only Select the desired frequency band in VFO mode or the de sired memory channel on the left or right band as desired e If you want to select FM narrow mode select the desired fre quency band or memory channel on the left band Push SETeegg to enter set mode Push SET amp x3 or LOWePRIO to select nAr item or COn item e Select nAr for Wide Narrow setting e Select COn for operating mode setting e Wide Narrow setting e Operating mode setting y AN an NZ P IC Ce Er ryiyl e ND F L La Rotate the same band s DIAL to select FM narrow or AM as desired e AM appears when AM mode is selected Push TONE DTMF to exit set mode mY m e N w gt Ku for OTHER FUNCTIONS 11 Push BAND to select the desired band left or right as the main band e If you want to select FM narrow mode select the de sired frequency band or memory channel on the left band Set the desired frequency or memory channel Push set B D OFF to enter set mode Push set B D OFF or ent C T OFF to select nAr item or COn item e Select nAr for Wide Narrow setting e Select COn for operating mode setting Push A V to select FM narrow or AM as de sired Push cLR A MW to exit set mode 11 OTHER FUNCTIONS E Weather channel operation USA version only
13. then rotate the SQL clockwise until the noise just disappears e When interference is received rotate the SQL clockwise again for attenuator operation p 17 Set the operating frequency in the main band pgs 11 13 When receiving a signal on the set frequency squelch opens and the transceiver emits audio e BUSY appears and the S RF IK E E Wie 1 indicator shows the relative L ll De D LI signal strength for the re ote alll H belved signal Appears when receiving a signal Y CONVENIENT The main band s audio and squelch level can also SQLA V be adjusted with voLA TONE 1 VoL O TONE 2 D and saLa D MUTE saLv 16KEY L respectively NY VOL for audio or SqL for squelch appears during set VOLA V Show set level ty ese er mes BASIC OPERATION 3 E Monitor function This function is used to listen to weak signals without disturb ER ing the squelch setting E Push DUP MONI DO for 1 sec So 065080 Push DUP MONI for 1 sec to open the squelch e Push MIN BAND to select the desired band left or right as the main band in advance e BUSY blinks e Push DUP MONI for 1 sec again to cancel the function Push moni 1 BANK to open the squelch Hon e Push BAND to select the desired band left or right as the main band in advance e Push moni 1 BANK again to cancel the function YN Sie When the SQL adjustment
14. to exit set mode Push BAND to select the desired band left or right as the main band Enter the desired frequency via the keypad if neces sary Select the desired mode channel you wish to set the offset frequency to such as VFO mode or memory call channel e The offset frequency can be independently pro grammed into each mode or channel 3 Push ser B D OFF to enter set mode 4 Push set B D OFF or ent C T OFF until DUP and offset frequency appear Wa m 4 e N ame dup 3005 TE HE rir PRE OG 5 Push A or V to set the desired offset Direct frequency entry from the keypad is not possi ble 6 Push cLR A MW to exit set mode t NOTE The offset frequency can be set in a memory call channel temporarily However the set frequency is cleared once another memory channel or VFO mode is selected To store the offset frequency permanently overwrite the channel information USING INITIAL SET MODE E Auto repeater U S A version only The USA version automatically activates the repeater settings DUP or DUP and tone encoder ON OFF when the operating frequency falls within the general repeater output frequency range and deactivate them when outside of the range Setting the auto repeater function ON OFF Push PWR to turn power OFF While pushing SET amp 3 turn power ON to enter initial
15. 28 MEMORY OPERATION 29 37 E General description 29 E Memory channel selection rrrnrrrvrrnrnvnnrvvrvrnrvenrversvensvenvrervrernen 29 E Programming a memory channel srnrsvrrvvvrvrrrvenrversversvervrervrernen 30 E Transferring memory contents 32 E Memory clearing 34 E Memory bank selection 35 E Memory bank setting rrrrrvrrvvrrvvnrrenrrenrvnnvvnvrervenrvensvennvensrensrernene 36 Mi Transferring bank contents imsensenvvvvrnvvnrnrrnrverve ver venvervenvenvenr 37 CALL CHANNEL OPERATION 38 39 E Call channel selection 38 E Call channel transferring 38 E Programming a call channel A 39 SCAN OPERATION ennvnvnnvnnnnnvnnvnnennennnnnnnnnnnnnnnnnnnnnnnnnnnennennennene 40 45 E Scan types 40 M Scan start stop Ai E Scan edges programming 42 E Skip channel setting m mnannannsvnnvnnvnnvnnvnnvnnvnnrnnvnrnnnnsnvsnnnnennnnnennene 44 E Scan resume condition mmmmensenenenenenvnnennvnnnsansnnsnvsnnsnnnnennennen 45 PRIORITY WATCH 46 47 E Priority watch types 46 Mi Priority watch operation oo eee e cee eeeeeeeeneeeeseeessaeeeeeeeeaees 47 9 DTMF MEMORY ENCODER rrnnvnnvnnnnnnnnnennennennennnnnennennennennvnnenne 48 51 E Programming a DTMF code A 48 E Transmitting a DTMF code mmeerrvrsvvnrvvnrversversvervrervrerversvensversrennen 50 E DTMF speed sieer 51 10 POCKET BEEP AND TONE SQUELCH 52 55 E Pocket beep operation rrn
16. CALL MWI for 1 sec Push the M CALL MW for 1 sec to transfer the contents IO 1 Push MR CALL for 1 sec then push A MR CALL to select the desired call channel in the main band NY 2 Push FUNC Jop A MW momentarily then push A V to select the memory channel to transfer the contents to AV e To transfer to the VFO push A W to select then push FUNC curR A MW for 1 sec Push FUNC then cuR A MW for 1 sec to transfer the contents a 6 CALL CHANNEL OPERATION E Programming a call channel Operating frequency duplex information subaudible tone in formation tone encoder or tone squelch ON OFF and its fre quency can be programmed into the call channel Set the desired frequency in VFO mode Push the desired band s V MHzeSCAN to select VFO mode Set the frequency using the same band s DIAL Set other data as desired Push the same band s M CALL MW for 1 sec Rotate the DIAL to select the desired call channel e ID indicator and C1 or C2 blink Push the M CALL MW for 1 sec to program e 3 beeps sound and the unit returns to VFO mode automatically C 1 Set the desired frequency in VFO mode MR CALL Push VFO LOCK to select VFO mode K Set the frequency Set other data as desired W 2 Push FUNC then cLR A MW momentarily 3 Select the call
17. EXAMPLE Transferring memory channel 30 contents to channel 31 Front panel operation Select the memory channel then push ait for 1sec Select the target channel HM 133 operation Select the memory channel push rune then push am EMD DUP dark ve SS ER MAIN nib TII II OTE IL MAS AT E a ggz EE 23 d 3 Push rear for 1 sec ul Ae CN Push rune then push for 1 sec 33 E Memory clearing Contents of programmed memories can be cleared blanked if desired Push V MHzeSCAN to select VFO mode in the desired band left or right Push the same band s M CALL MW for 1 sec AR indicator and the memory channel number blink Rotate the same band s DIAL to select the memory chan nel to be cleared e Memory channels not yet programmed are blank MEMORY OPERATION 5 Push the same band s M CALL MW momentarily then push the M CALLeMW again for 1 sec t This operation must be performed within 1 5 sec e 3 beeps sound then the frequency is cleared indicator and the channel number blink continuously e When clearing the call channel the current VFO conditions are re programmed into the call channel automatically Push the same band s MAIN BAND or V MHz SCAN to return to VFO mode NOTE Be carefull the contents of cleared memories CANNOT be recalled EXAMPLE Clearing memory channel 20 Push to select VFO
18. Push M CALLeMW for 1 sec 3 Writing a memory channel Push and hold the M CALL MWI for 1 sec to program 3 beeps sound e Return to VFO mode automatically after the program e Memory channel number automatically increases when continuing to push the M CALL MW after programming Using the HM 133 In VFO mode set the desired operating frequency includ ing offset direction tone settings etc Push VFO LOCK to select VFO Push ENT C T OFF first then enter the desired oper ating frequency via the keypad e Set other data such as repeater tone duplex information tuning step if necessary Push FUNC then cir A MW es ID indicator and memory channel number blink Push rune Ss Se 4 2 then o HE Push A V to select the desired memory channel Push FUNC then push cir A MW for 1 sec to pro gram 3 beeps sound e Memory channel number automatically increases when continu ing to push cLR A MW after programming QUICK REFERENCE GUIDE O 3 3 D Q O E H 2 H em E o 3 XII E Front panel controller 1 PANEL DESCRIPTION Function display pgs 3 4 P E DUALBAND FM TRANSCEIVER IC 2720 The switches to are for the MAIN band only POWER SWITCH PWR Turns power ON and OFF when pushed for 1 sec SET LOCK SWITCH SET ez Enters set mode when pushed
19. Push ago 1 sec vw lt Kg E AN MR og a ae a a y EN vu i Lir ut DI ut EI 7 sel LI Otol JI Tel LAT VW mm e le SO aniz iLi EA SS cu Push momentarily then push ma again for 1 sec un Beep Beep Beep bh 34 DN MEMORY OPERATION E Memory bank selection The IC 2720H has a total of 10 banks A to J Regular mem ory channels 000 to 199 are assigned into the desired bank for easy memory management Push the desired band s M CALL MW several times to select memory mode if desired Q Push the same band s MAINSBAND for 1 sec to select memory bank Push MAIN eBAND for 1 sec to select memory bank condition I gt og u av e Bank initial blinks trp rt 3 Rotate the same band s For el LJ LI DIAL to select the de ag sired bank A to J A e Banks that have no pro Bank initial appears grammed contents are skipped Push the MAIN BAND to set the bank Initial stops blinking Rotate the DIAL to select the contents in the bank No channel numbers are displayed for memory bank operation O To return to regular memory condition push the MAINeBAND for 1 sec then push the MAIN BAND mo mentarily again Di gt E A 5 lt Push MR CALL to select memory mode if de sired Push FUNC then Moni 1 BANK to sele
20. a call from a specific station Set the operating frequency Push SETee to enter set mode in the main band Push SET ex9 or LOWePRIO several times until Ct for tone squelch or dt for DTCS squelch appears SN bas fh o Tsar D sa mA ett 7 ill Lil l r yr A Tone squelch frequency setting DTCS code setting Rotate the main band s DIAL to select the desired tone squelch frequency When operating the pocket beep function with DTCS squelch push SET x once then rotate DIAL to select the DTCS polarity MAIN Sores D TS ag gt r re MS DTCS polarity setting Push TONE DTMF to exit set mode Push TONE DTMF several times until T SQL or DTCS are displayed to turn ON the pocket beep with tone squelch or DTCS squelch respectively Push TONE DTMF several times to select the pocket beep function with tone squelch or DTCS squelch Appears when the pocket beep Appears when the pocket beep with tone squelch is activated with DTCS squelch is activated When a signal with the matched tone is received the transceiver emits beep tones and blinks e Beep tones sound for 30 sec and blinks To stop the beeps and blinking manually push any key When the beep tones are not stopped manually continues blinking until PTT is pushed see
21. and VFO inde pendently This item appears when set mode is accessed from left band only Operating mode setting G NOTE This item appears only when accessing set mode Z from other than 900 MHz band Selects the operating mode for the desired frequency band from FM and AM The selected mode is used for the previously selected oper ating frequency band for example when entering set mode from 127 MHz band and AM is selected AM is automatically selected even FM is selected in other frequency bands This setting can be set for each memory call and VFO inde pendently Weather alert function U S A version only Turns weather alert function ON and OFF V on Ges wae E SV L lat DI goles age aR 49 AL ar ee A AHL ET Et 1st Lo frequency selection Selects the 1st Lo Local Oscillator frequency from normal n and reverse r By changing local oscillator frequency the transceiver may reject interference or image frequencies such as from other stations spurious or the transceiver s internal oscillator MAIN MAIN ser 1 TI Zo Ti LO GS I m This item can also be switched by pushing SETeexg while transmitting pushing and holding PTT for sub band non main band setting It is helpful in case the transceiver receiving heterodyne spu rious emissions or receiving on an image frequency from own transmitter The local oscillator frequency can be switched when select
22. appears when while the pocket beep function with CTCSS or DTCS is in minus duplex repeater operation is selected use p 52 T SQL appears while the tone squelch function is in DTCS appears while the DTCS squelch function is in AM INDICATOR p 64 Appears when AM mode is selected FREQUENCY READOUT Shows the operating frequency set mode contents etc Frequency decimal point blinks while scanning p 41 d appears in place of the 1st digit while the DTMF memory function is in use p 48 MEMORY CHANNEL NUMBER INDICATORS Shows the selected memory channel number p 29 Shows the selected bank initial p 35 C appears when the call channel is selected p 38 L appears when the lock function is activated p 15 OSKIP INDICATOR p 44 Appears when the displayed memory channel is specified as a skip channel MEMORY INDICATOR pgs 12 29 Appears when memory mode is selected S RF INDICATORS Shows the relative signal strength while receiving sig nals p 16 Shows the output power level while transmitting p 20 OUTPUT POWER INDICATORS LOW appears when low output power MID appears when middle output power is selected No indicator appears when high output power is selected PANEL DESCRIPTION 1 BUSY INDICATOR Appears when a signal is being received or the squelch is open p 16 Blinks while the monitor function is activated
23. is set too far clock J wise 12 5 o clock position the squelch attenuator is acti 7 va ted To monitor weak signals on the operating frequency f deactivate the squelch attenuator function See pg 17 for 7 details 17 3 BASIC OPERATION E Squelch attenuator The transceiver has an RF attenuator related to the squelch level setting Approx 10 dB attenuation is obtained at maxi mum setting The squelch attenuator allows you to set a minimum signal level needed to open the squelch The attenuator function can be deactivated in initial set mode Rotate SQL clockwise past the 12 o clock position to ac tivate the squelch attenuator Attenuation level can be adjusted up to 10 dB approx between 12 o clock and fully clockwise position When setting the squelch from the microphone a level greater than 19 activates the squelch attenuator Noise squelch Squelch threshold Squelch is Squelch open attenuator Shallow Deep NOTE The squelch attenuator functions even when the monitor function is in use Thus set the SQL control within 10 to 12 o clock position is recommended when using the monitor function BQ Squelch attenuator setting eme INITIAL SET MODE Turn the transceiver power OFF While pushing SET amp turn the power ON to enter initial set mode While pushing SET Gx push PWR to enter initial set mode Push SET ex3 o
24. mem BANK ory channel via A V or keypad Ne e Push BAND to select the desired band left or C 3 right as the main band in advance MW 2 Push FUNC then Moni 1 BANK KZ e indication blinks Ny 3 Push cur A MW to set the channel to bank ATV setting stand by condition K e indication stops blinking 4 Push FUNC then cLR A MW then push M V to select the desired bank to be set Bank initial blinks 5 Push cuR A MW to set the channel into the bank es MD and bank initial stops blinking 6 Push FUNC moni 1 BANK then cLR A MW to return to regular memory channel condition Repeat steps 1 to 16 to set an another memory channel into the same or another bank N DN MEMORY OPERATION E Transferring bank contents Contents of programmed memory banks can be cleared or transferred to another bank 7 INFORMATION Even if the memory bank contents are G I d th h ill i Ge eared the memory channel contents still remain pro 7 grammed Select the desired bank contents to be transferred or erased in the desired band left or right Push the desired band s M CALL MW several times to select memory mode Push the same band s MAIN BAND for 1 sec then ro tate the same band s DIAL to select the desired mem ory bank Bank initial blinks Push the MAINeBAND to select the bank then rot
25. one of 0 to 9 and A to F keys mo mentarily then push the desired DTMF keys 0 9 and A to F e A cLR A MW B set B D OFF C Ent C T OFF D saLa D MUTE E TONE 1 F saLv 16KEY L Automatically transmits without pushing PTT e The first code one of A to F is not transmitted DTMF code transmission starts from the 2nd code Push DTMF S again to deactivate the DTMF direct selection USING INITIAL SET MODE E DTMF speed The rate at which DTMF memories send individual DTMF characters can be set to accommodate operating needs The display shows the fastest DTMF speed is selected Push PWR for 1 sec to turn power OFF While pushing SET amp 39 push PWR for 1 sec to turn power ON and enter initial set mode Push L t Tea or LOWePRIO several times until dtd appears as shown above Rotate the left band s DIAL to select the desired speed as shown in the table below Push PWR to exit initial set mode DISPLAY INTERVAL SPEED dtd 1 100 msec 5 0 cps dtd 2 200 msec 2 5 cps dtd 3 300 msec 1 6 cps dtd 5 500 msec 1 0 cps cps characters sec POCKET BEEP AND TONE SQUELCH 1 A E Pocket beep operation This function uses subaudible tones for calling and can be used as a common pager to inform you that someone has called while you were away from the transceiver Waiting for
26. p 56 Switches the lock function ON and OFF when pushed for 1 sec p 15 OUTPUT POWER PRIORITY SWITCH LOWePRIO Each push changes the output power selection p 20 Starts priority watch when pushed for 1 sec p 47 QTONE DTMF SWITCH TONE DTMF Each push selects a tone function pgs 23 52 e Subaudible tone encoder pocket beep CTCSS tone squelch pocket beep DTCS DTCS squelch or tone func tion OFF can be selected Turns DTMF memory encoder ON and OFF when pushed for 1 sec p 48 DUPLEX MONITOR SWITCH DUP MONI Push to select DUP DUP and simplex operation p 23 Push for 1 sec to switch the monitor function ON and OFF p 16 Left band PANEL DESCRIPTION 1 Right band ol MAIN Ce O ei amp 0 MAIN gie O SE se CALL 120 EN Ce e 9 MEN ED cere cere DUAL BAND FM TRANSCEIVER DAL 90880 OO IC 2720 DIAL The same controls for both the left and right bands are arranged in symmetry OG MAIN BAND SWITCH MAIN BAND VOLUME CONTROL VOL p 16 Push to select the main band p 11 Enters operating band select condition when pushed for 1 sec p 11 VFO MHz TUNING SCAN SWITCH V MHzeSCAN Selects and toggles VFO mode and 1 MHz or 10 MHz for some versions tuning when pushed p 12 Starts scan when pushed for 1 sec p 41 e Cancels a scan when pushed during scan MEMORY CA
27. scan pauses until the signal disappears timer scans pause for 5 10 or 15 sec BAND SCAN p 41 Repeatedly scans all frequen PROGRAMMED SCAN Repeatedly scans between cies over the entire band p 41 two user programmed fre Band Bang Used as the simplest scan Start End quencies Used for checking e edge edge without any preliminary set Ls E for frequencies within a speci tings necessary 3A 3b fied range such as repeater Scan Band 4A Scan edges 4b Band output frequencies etc d v WI eage Ap SG edge NOTE A tone scan function is available to search for subaudible tones e g when you want to find a subaudible tone fre quency necessary to open a repeater See p 55 for details 41 7 SCAN OPERATION E Scan start stop Preparation Scan resume condition p 45 program the scan edges pgs 42 43 program 2 or more memory channels pgs 30 31 set skip settings if desired p 44 Operation Select VFO mode for full programmed scan with V MHzeSCAN or memory mode for memory scan with M CALLeMW in the desired band e Select the desired bank with the same band s MAINeBAND for bank scan Set the squelch to the point where noise is just muted Push the V MHzeSCAN for 1 sec to start the scan To change the scanning direction rotate the same band s DIAL e The memory channel readout blinks the scan type as follows Push SET amp 3 to switch full and programmed scan P1
28. step Push PTT to answer disappears and cancels the pocket beep function auto matically Push TONE DTMF several times until T SQL or DTCS disappears to cancel the tone squelch or DTCS squelch function 10 POCKET BEEP AND TONE SQUELCH ae TSQL DTCS K Set the operating frequency Program the CTCSS tone frequency or DTCS code in set mode Push ser B D OFF to enter set mode Push set B D OFF or ent C T OFF several times until Ct for tone squelch or dt for DTCS squelch appears T SQL blinks when tone squelch Ct or DTCS blinks when DTCS squelch dt is se lected Push A V to select the desired tone fre quency or DTCS code Push seT B D OFF to select dtP then push A V to select the DTCS polarity Push CLR A MW to exit set mode Push FUNC then push pup 8 TSQL or mip 5 DTCS to turn ON the pocket beep with tone squelch or DTCS squelch re spectively When a signal with the matched tone is re ceived the transceiver emits beep tones for 30 sec and blinks Push PTT to answer or push cLR A MW to stop the beeps and blinking disappears and cancels the pocket beep function automatically To cancel the tone squelch or DTCS squelch function push FUNC then Ent C T OFF e T SQL or
29. the PTT P terminal for packet operation no voice signals are transmitted from the microphone e When pushing PTT during data transmission data transmission is interrupted and the voice signal takes pri ority e Read the instructions supplied with your TNC carefully before attempting packet operation with the transceiver Pin DATA OUT is for 9600 bps operation only This pin cannot be used for 1200 bps operation E Adjusting the transmit signal output from the TNC When setting data transmission speed to 9600 bps the data signal coming from the TNC is applied exclusively to the in ternal limiter circuitry to automatically maintain band width NEVER apply data levels from the TNC of over 0 6 V p p oth erwise the transceiver will not be able to maintain the band width and may possibly interfere with other stations 1 When using a level meter or synchroscope adjust the TX audio output level DATA IN level from the TNC as follows 0 4 V p p 0 2 V rms 0 2 V p p 0 5 V p p 0 1 0 25 V rms recommended level acceptable level 2 When NOT using a measuring device Connect the transceiver to a TNC Enter a test mode CAL etc on the TNC then trans mit some test data When the transceiver fails to transmit the test data or transmits sporadically TX indicator doesn t appear or flashes Decrease the TNC output level until the transmit indi cator lights continuously When transmission is
30. the transceiver in the normal way push PTT to transmit release PTT to receive 6 To cancel the tone squelch push FUNC then ENT C T OFF e T SQL or DTCS disappears 4 n O i N Bo w 4 CH n w a NOTE The DTCS squelch operation on sub band will not be performed during DTCS transmission due to the same encoder decoder circuit is used for both main and sub bands And the tone squelch operation on sub band may not be performed correctly during DTCS transmission 54 10 POCKET BEEP AND TONE SQUELCH E Tone scan By monitoring a signal that is being operated with pocket beep tone or DTCS squelch function you can determine the tone frequency or DTCS code necessary to open a squelch Set the desired operating frequency or memory channel to be checked for a tone frequency or code in the main band Push TONE DTMF several times to select the tone type tone squelch or DTCS to be scanned e Either T SQL or DTCS appears Push the main band s V MHz SCAN for 1 sec to start the tone scan To change the scanning direction rotate DIAL COOC Push V MHzeSCAN for 1 sec to start tone scan ane sot cm oes aq ln ODE I ZA J During CTCSS frequency scan During DTCS code scan t NOTE The decoded tone frequency is programmed tem porarily when a memory or ca
31. to select the condition or value Push TONE DTMF to exit set mode e Set mode items 2 Push BAND to select the main band Push set B D OFF to enter set mode Push set B D OFF or ENT C T OFF to select the desired item Push A or V to select the condition or value Push ctr A MW to exit set mode Wal m 4 N A oa e Weather alert 1st Lo frequency Display dimmer Display color Repeater tone frequency MAIN Ze MAIN MAIN pe a keeli ET ga ETA ee E mh DI to II gt LI gt LH II gt Mode selection L MAIN J D OFF H PE E gt Push amp 3 C front panel or microphone EN gt Push front panel or microphone e Narrow setting Available for USA version only ams op tAppears when accessing set mode from memory mode only o He Lie Available for the USA version and appears when accessing set mode from left band only gt Does not appear when accessing set mode from 900 MHz band e Channel skip setting e Scan resume timer e Tuning step e Offset frequency MAIN em MAIN MAIN MAIN DE ea Ga rub s IL lt prhe IL ee LE e ID rn lt Lied Ul gt wl Se lad gt 4 gt gt JJ Te gt 11 OTHER FUNCTIONS Display dimmer Adjust to suit lighting conditions The levels 1 dark to 4 bright default are available MAIN SHIA oo Le Display col
32. until T appears if the re peater requires a subaudible tone to be accessed o OD A less op Push TONE DTMF QUICK REFERENCE GUIDE Using the HM 133 Plus or minus duplex selection and the repeater tone setting can be made easily via HM 133 Push pup 7 TONE for minus duplex DuP 8 TSQL for plus duplex selection push FUNC then DuP 7 TONE to turn the repeater tone ON Push jo ummm wr Li e cli IL Push FR Zanen mb IO LOL TONE rion os on DI GAIL O 3 D o O E H 2 H i E o 3 i QUICK REFERENCE GUIDE E Programming memory channels The IC 2720H has a total of 212 memory channels including 10 scan edges and 2 call channels for storing often used op erating frequency repeater settings etc Any memory channel can be recalled from either left or right band 1 Setting a frequency In VFO mode set the desired operating frequency with re peater tone and tuning steps etc Push the desired band s V MHzeSCAN to select VFO Rotate the same band s DIAL to set the desired frequency e Set other data such as repeater tone duplex information tuning step if desired 2 Selecting a memory channel Push the same band s M CALL MW for 1 sec then rotate the DIAL to select the desired memory channel es MD indicator and memory channel number blink 26 IG sol Jo 5 0 00 re g
33. within 0 to 20 MHz range During duplex repeater operation transmit frequency shifts the set frequency default value may differ depending on operating frequency band and versions Tuning step Selects tuning step from 5 10 12 5 15 20 25 30 and 50 kHz for DIAL or AT V operation default value may differ depending on operating frequency band and versions MAIN H 1 3 Ce CH fyr Lo d A sm om OTHER FUNCTIONS 11 Scan resume timer Selects scan resume timer from SCT 15 default SCT 10 SCT 5 and SCP 2 e SCT 15 10 5 Scan pauses for 15 10 5 sec then re sumes e SCP 2 Pause on a signal until signal disap pears then resumes 2 sec after the sig nal disappears MAIN MAIN tir Ki Vs bw Kr Del Pad L IA Lo s lt gt a M UW Channel skip setting Sets channel skip setting from ON and OFF for memory skip scan operation This item appears when set mode is accessed from memory mode only ENS ESI FG EE LE leo L Lele 3 em He H ef 1 Self L H ee LR a M LI LI Default setting e KP appears when set to On 11 OTHER FUNCTIONS Wide Narrow setting Left band only Sets both the transmission and reception passband width from wide and narrow When narrow is set the transmission deviation and reception passband width become half of the wide setting approx This setting can be set for each memory call
34. 00 MHz digit cancel the DTMF memory encoder in advance p 50 Rotate the main band s DIAL to set the desired timer SCt 15 Scan pauses 15 sec while receiving a signal SCt 10 Scan pauses 10 sec while receiving a signal e SCt 5 Scan pauses 5 sec while receiving a signal SCP 2 Scan pauses until the signal disappears and then resumes 2 sec later Push TONE DTMF to exit set mode m m 4 e Ku Push BAND to select the desired band left or right as the main band Push set B D OFF to enter set mode Push set B D OFF or Ent C T OFF several times until GC or SCP appears as shown at left Push A or V to select the scan resume condi tion e See item at left for scan resume condition details Push ctr A MW to exit set mode E Priority watch types Priority watch checks for signals on a VFO frequency every 5 sec while operating in memory mode The transceiver has 3 priority watch types to suit your needs You can also trans mit on the VFO frequency while the priority watch operates The watch resumes according to the selected scan resume condition See previous page for details r NOTES If the pocket beep function is activated the transceiver automatically selects the tone squelch function when pri ority watch starts PRIORITY WATCH Sa MEMORY CHANNEL WATCH While operating on a VFO fre que
35. 18 549 995 Be oe aa i _ABQ General Tx 144 148 430 450 Tx 144 148 430 450 Asia Rx 136 173 995 430 440 Rx 136 173 995 430 440 Tx 144 148 430 440 Tx 144 148 430 440 Australia Tx Rx 144 148 430 440 Taiwan P Korea Tx Rx 144 146 430 440 Guaranteed 144 148 MHz range only Guaranteed 440 450 MHz range for the USA 430 440 MHz for the General version Not guaranteed 824 010 to 848 990 and 869 010 to 893 990 MHz ranges are inhibited for USA version and not guaranteed Type of emission Number of memory channels Frequency resolution Operating temperature range Frequency stability Power supply requirement e Current drain at 13 8 V DC approx Transmit Receive simultaneous receive Antenna connector e Dimensions proj not included Main Unit Remote controller Weight approx Main unit incl separation cable Remote controller FM AM Receive only 212 incl 10 scan edges and 2 calls 5 10 12 5 15 20 25 30 50 kHz 10 C to 60 C 14 F to 140 F 10 ppm 10 C to 60 C 13 8 V DC 15 at 50 W 12A standby 1 2A max audio 1 8A SO 239 50 9 140 W x 40 H x 187 D mm 5 e W x1 e H x794 D in 140 W x 50 H x 24 5 D mm 5 e W x12Y42 H x 1 42 D in 1 25 kg 2 Ib 12 oz 150 g 5 3 oz 1 3 SPECIFICATIONS AND OPTIONS TRANSMITTER e Modulation system e Output power e Max frequency deviation e Spurious em
36. A or V to select and set the desired i i subaudible tone frequency Q kreerte DIAE osetectand sotahedesiod e Push and hold A VW to change the above tones d continuously Push TONE DTMF to exit set mode Push kan A MW to exit set mode Ku NOTE The subaudible tone encoder frequency can be set e Subaudible tone frequency list unit Hz in a memory call channel temporarily However the set fre quency is cleared once another memory channel or VFO ae Se ST E e es KS SCH SE Se mode is selected To store the tone frequency permanently 71 9 85 4 100 0 118 8 141 3 162 2 177 3 1928 210 7 241 8 overwrite the channel information 74 4 88 5 103 5 123 0 146 2 165 5 179 9 196 6 218 1 250 3 77 0 91 5 107 2 127 3 151 4 167 9 183 5 199 5 225 7 254 1 DTMF tones Push DTMF S then push the keys of the de sired DTMF digits e The function indicator lights green 0 9 A D E and F are available e When d is displayed in place of the 100 MHz digit cancel the DTMF memory encoder in advance p 50 e Push DTMF S again to return the keypad to nor mal function control DTMF S oy i then push desired keys v For your convenient The transceiver has 14 DTMF memory channels for au topatch operation See p 48 for details REPEATER OPERATION 4 1750 Hz tone The microphone has 1750 Hz tone capability
37. DTCS disappears Available tone frequency list 67 0 79 7 94 8 110 9 131 8 156 7 171 3 186 2 203 5 229 1 69 3 82 5 97 4 114 8 136 5 159 8 173 8 189 9 206 5 233 6 71 9 85 4 100 0 118 8 141 3 162 2 177 3 192 8 210 7 241 8 74 4 88 5 103 5 123 0 146 2 165 5 179 9 196 6 218 1 250 3 77 0 91 5 107 2 127 3 151 4 167 9 183 5 199 5 225 7 254 1 NOTE The transceiver has 50 tone frequencies and con sequently their spacing is narrow compared to units having 38 tones Therefore some tone frequencies may receive interference from adjacent tone frequencies 7 To prevent interference from adjacent tone frequencies Y using the frequencies as in the following table is recom mended INNO OM Recommended tone frequencies 67 0 77 0 88 5 100 0 114 8 131 8 151 4 173 8 203 5 233 6 69 3 79 7 91 5 103 5 118 8 136 5 156 7 179 9 210 7 241 8 71 9 82 5 94 8 107 2 123 0 141 3 162 2 186 2 218 1 250 3 74 4 85 4 97 4 110 9 127 3 146 2 167 9 192 8 225 7 amp Calling a waiting station using pocket beep A subaudible tone matched with the station s CTCSS tone fre quency or 3 digit DTCS code with polarity is necessary Use the tone squelch on the next page or a subaudible tone en coder pgs 25 26 E Tone DTCS squelch operation T
38. F in set mode t NOTE While receiving a signal on a frequency other than the weather alert ON frequency the receiving signal or audio will be interrupted momentarily every 5 sec approx in case the alert function is turned ON This symptom is caused by the WX alert function To cancel these symp toms set the weather alert item OFF in set mode E Microphone keys The supplied HM 133 s optional for some versions F 1 and F 2 keys memorize the transceiver conditions The UP DN keys of the standard or an optional microphone other than the HM 133 can be assigned functions like the function keys on the transceiver s front panel UP DN keys on a microphones other than HM 133 at POWER ON The following functions are assigned to the UP DN keys on the other microphones HM 118N TAN etc when first apply ing power e Default setting UP channel up push and hold to start scan push again to stop scan DN channel down push and hold to start scan push again to stop scan Assigning a function Turn the power OFF While pushing the desired switch on the transceiver and one of either UP DN keys on the microphone turn the power ON e The function is programmed into the key Clearing an assignment Turn the power OFF While pushing the desired UP or DN key on the micro phone turn the power ON OTHER FUNCTIONS 11 F 1 F 2 keys on HM 133 The following conditi
39. FERENCE GUIDE 3 Selecting the operating frequency band The IC 2720H has 2 m and 70 cm bands for each left and right band The operating band can be exchanged between them and the same bands V V and U U settings are also possible Push the desired band s MAIN eBAND for 1 sec DIAL Frequency band initial is displayed Push the desired band s left or right MAIN BAND for 1 sec then rotate the appropriate band s DIAL Push the MAIN BAND momentarily to return to frequency indi cation 4 Tune the frequency The tuning dial will allow you to dial in the frequency you want to operate Pages 13 and 14 will instruct you on how to set the tuning speed ES T Rotate the desired DIAL Using the HM 133 You can directly enter the frequency with the HM 133 keypad for the main band EXAMPLE Setting frequency to 145 3625 MHz Push 15 2 ET Push 105 Te na AEA Te ae tut L gt L PTT M DTMF o Gi Mae LSC Push L BR r r E Repeater operation 1 Setting duplex Push desired band s MAIN BAND to select the main band Push DUPeMONI once or twice to select minus duplex or plus duplex e The USA version has an auto repeater function therefore setting duplex is not required Pu Push DUPeMONI 2 Repeater tone Push TONE DTMF several times
40. G Personal injury fire hazard or electric shock may occur CAUTION Equipment damage may occur NOTE Recommended for optimum use No risk of personal injury fire or electric shock Icom Icom Inc and the fcom logo are registered trademarks of Icom Incorporated Japan in the United States the United Kingdom Ger many France Spain Russia and or other countries PRECAUTION A WARNING RF EXPOSURE This device emits Radio Frequency RF energy Extreme caution should be observed when operating this device If you have any questions regarding RF expo sure and safety standards please refer to the Federal Communica tions Commission Office of Engineering and Technology s report on Evaluating Compliance with FCC Guidelines for Human Radio fre quency Electromagnetic Fields OET Bulletin 65 Z WARNING NEVER connect the transceiver to an AC out let This may pose a fire hazard or result in an electric shock Z WARNING NEVER operate the transceiver while driving a vehicle Safe driving requires your full attention anything less may result in an accident NEVER connect the transceiver to a power source of more than 16 V DC This will damage the transceiver NEVER connect the transceiver to a power source using reverse polarity This will damage the transceiver NEVER cut the Dc power cable between the DC plug and fuse holder If an incorrect connection is made after cutting the transceiver may be damaged NEVER expose the t
41. LL MEMORY WRITE SWITCH M CALL MW Push to select and toggle memory call and weather channel modes pgs 12 29 38 65 Weather channels available for USA versions only Selects a memory channel for programming when pushed for 1 sec pgs 30 39 42 Adjusts the audio level for relative band TUNING DIAL DIAL Selects the operating frequency p 13 memory channel p 29 the setting of the set mode item and the scanning direction p 41 for the relative band SQUELCH CONTROL SQL Varies the squelch level for relative band p 16 The RF attenuator activates and increases the attenuation when rotated clockwise to the center position and further p 17 w 1 PANEL DESCRIPTION E Function display 0 d o 0 oO d SJ Left band ES NED Right band EB Dur Jr so ra DTCS qm DUP T SaL wn DTCS ape w EH AM ECH EH EH CAM oo I ti titt TT The same indications for both the left and right bands are arranged MAIN INDICATOR p 11 TONE INDICATORS Indicate the main band for transmit and function control T appears while the subaudible tone encoder is in use TRANSMIT INDICATOR p 23 Appears while transmitting p 20 Blinks while transmitting with the one touch PTT func e tion p 21 use p 52 DUPLEX INDICATORS p 23 appears with the T SQL or DTCS indicator DUP appears when plus duplex DUP
42. NC to 30 50 Adjust the TNC frequency deviation if necessary e When using a deviation meter Adjust the output of the TNC so that frequency deviation is in the range 3 to 4 kHz e When NOT using a deviation meter A receiver or transceiver is needed to monitor the trans mission compare the received audio output level when receiving a TNC modulated signal with high level voice signals using the microphone Then adjust the TNC mod ulated signal to a lower level than the voice modulated signal OTHER FUNCTIONS 11 e Read the instructions supplied with your TNC carefully before attempting packet operation with the transceiver e Pin AF OUT is for 1200 bps operation only This pin cannot be used for 9600 bps operation e Over modulation may degrade signal quality If you find that many transmissions are failing re adjust the modu lation level KLL 11 OTHER FUNCTIONS 9600 bps high speed packet operation The transceiver supports 2 modes of 9600 bps packet opera tion GJRUH and GMSK Connect the transceiver and a TNC as illustrated below TNC side DATA IN Fo S 5 GND GND O DATA OUT OPTTP 5 RX AUDIO 6 PTT P SQL G3RUH mode can handle 16 kinds of modulated wave forms in order to maintain a communication link Set transmit delay on the TNC to 30 50 Adjust the TNC frequency deviation if necessary see page at right e When using
43. P2 P3 P4 and P5 if VFO is selected in step To stop the scan push the V MHz SCAN e During full scan During programmed scan ar mw 7 nh FJ ame E ke lt n FF Tes RN ry OK 4 Tes HE UH 1 SS AL mv rep ZA Push SET Z to select AL full or programmed scan P1 P2 P3 P4 and P5 in sequence e P1 stands for 1A 1b with SET amp 3 n O gt Indicates scan edge channels e P1 to P5 are available when they are programmed and switches Ee band Wa m 4 e for bank scan muted is selected in step cLR A MW During memory scan S B 3 3 CO N I D p V os G G d GS vA BL I 9 E D 4 Ki N Push VFO LOCK to select VFO mode for full programmed scan push MR CALL to select memory mode for memory scan in the main e Push FUNC then moni 1 BANK to select a bank 2 Push saLa D MUTE or saLv 16KEY L to set the squelch to the point where noise is just 3 Push scan 2 T SCAN to start the scan e Push A or V for 1 sec also starts the scan 4 Push set B D OFF to switch full and pro grammed scan P1 P2 P3 P4 and P5 if VFO 5 To stop the scan push SCAN 2 T SCAN or e During bank scan Moe EE HUD ED ED gt Ba HESE ONE JR TNS Tex INF Indicates bank initial E Scan edges programming Scan edg
44. PTION E H ET ALS e 11 a A different microphone may be supplied de pending on version VFO LOCK SWITCH VFO LOCK Push to select VFO mode p 12 Push for 1 sec to switch the lock function ON and OFF p 15 PTT SWITCH Push and hold to transmit release to receive Switches between transmitting and receiving while the one touch PTT function is in use p 21 UP DOWN SWITCHES A Push either switch to change operating frequency memory channel set mode setting etc pgs 13 29 56 Push either switch for 1 sec to start scanning p 41 O ACTIVITY INDICATOR Lights red while any key except FUNC and DTMF S is pushed or while transmitting Lights green while the one touch PTT function is in use KEYPAD pgs 8 9 GFUNCTION INDICATOR sr Lights orange while FUNC is activated indicates the secondary function of switches can be accessed Lights green when DTMF S is activated DTMF sig nals can be transmitted with the keypad 2nd FUNCTION SWITCH FUNC DTMF SELECT SWITCH DTMF S p 50 FUNCTION SWITCHES F 1 F 2 p 66 Program and recall your desired transceiver conditions BAND SWITCH BAND p 11 Push to switches main band between left and right bands MEMORY CALL SWITCH MR CALL Push to select memory mode p 12 Push for 1 sec to select call channel p 38 V Important All keys on the microphone function for the main band only
45. T to transmit e The displayed frequency automatically changes to the transmit frequency repeater input frequency e If OFF appears confirm that the offset frequency p 27 is set correctly Release PTT to receive Eme DE a EN EE E LIII SC rt ke CLL pe ge IC CU i PETT i While transmitting It Fer CL While receiving Push DUPeMONI to check whether the other station s transmit signal can be received directly To return to simplex operation push DUP MONI once or twice to clear the DUP or DUP indicator To turn OFF the subaudible tone encoder push TONE DTMF several times until no tone indicators ap pear J E B DI N REPEATER OPERATION 4 Push simp OCT GO to return to simplex opera tion e DUP or DUP indicator disappears To turn OFF the subaudible tone encoder push FUNC then Ent C T OFF Set the receive frequency repeater output fre quency on the main band pgs 11 13 Push pur 7 TONE to select minus duplex push puP 8 TSQL to select plus duplex ER I g CO Push FUNC then pur 7 TONE to turn ON the subaudible tone encoder according to re peater requirements Refer to p 25 for the tone frequency setting e When the repeater requires a different tone system see p 26 Sse push rnc po C000 D SS the
46. Tees9 or LOWePRIO several times until CHS appears as shown above Rotate the DIAL to turn the skip function ON or OFF for the selected channel e KP appears The channel is skipped during scan CHS On e Gx disappears The channel is scanned during scan CHS OF Push TONE DTMF to exit set mode mY m e SCAN OPERATION 7 Select a memory channel Select memory mode by pushing MR CALL Push A or V to select the desired channel to be a skip channel Direct memory channel selection is also available Push set B D OFF to enter set mode Push set B D OFF or Ent C T OFF several times until CHS appears as shown at left Push A or V to set or cancel the skip setting e See item at left for skip indicator details Push ctr A MW to exit set mode 44 7 SCAN OPERATION E Scan resume condition USING SET MODE The scan resume condition can be selected as timer or pause scan The selected resume condition is also used for priority watch p 47 PAIN The display shows that the ze A7 JE scan will resume 15 sec after KO eer 13 it stops Push MAIN BAND to select the desired band left or right as the main band Push SET amp 3 to enter set mode Push SET amp x3 or LOWePRIO several times until SCt or SCP appears as shown above e When d is displayed in place of the 1
47. Windows are registered trademarks of Microsoft Corporation in the U S A and other countries E Packet operation Data speed For packet operation the transceiver can be set to one of two data speeds 1200 bps default or 9600 bps While pushing SET amp 3 turn power ON to enter initial set mode Push SET gx3 or LOWePRIO to select the bPS item Rotate the left band DIAL to select the desired data speed a m Pad LO VE IC oo ke Si Ly l ll e D z k H ie Push PWR to exit initial set mode Y For 1200 bps operation e Disconnect the microphone plug from the microphone connector during data transmission otherwise the data signal and voice signal are simultaneously transmitted GQ or 9600 bps operation When the transceiver is set for 9600 bps data transmis sion in set mode the microphone signal is automatically cut Therefore it is not necessary to disconnect the mi crophone plug from the connector in this case e When pushing PTT during data transmission data trans mission is interrupted and voice signals have priority TTL 1200 bps packet operation Connect the transceiver and a TNC as illustrated below TNC side DATAIN 5 TX AUDIO gt GND PTTP i OPSa SE l RX AUDI OG AF OUT i upio 9 PTT A SOL Set the TNC for transmit Set transmit delay on the T
48. ate the DIAL to select the desired contents Bank initial stops blinking Push the M CALL MW for 1 sec Bank initial blinks 114 17 LIT SAT QA Rotate the DIAL to select the desired bank initial to trans fer or erase e Select indication when erasing the contents from the bank Push the M CALL MW again e Bank initial or indication stops blinking G Push the MAIN BAND for 1 sec then push the MAINeBAND momentarily again to return to regular mem ory condition Repeat steps to amp for transferring or erasing an an other banks contents 1 Select the desired bank contents in the main BANK band Push MR CALL to select memory mode FN Push FUNC Moni 1 BANK then select Ka the desired memory bank via AT V CI Push cLR A MW to select the bank then select the desired contents via AT V 2 Push FUNC then ctr A MW e Bank initial blinks 3 Push A V to select the desired bank initial to transfer or erase e Select indication when erasing the contents from the bank 4 Push ctr A MW e Bank initial or indication stops blinking 5 Push FUNC mon 1 BANK then cLR A MW to return to regular memory condition 6 Repeat steps 1 to 5 for transferring or eras ing an another banks contents CALL CHANNEL OPERATION E Call
49. atically Each push of PTT transmits the DTMF code 5 Push FUNC then ser B D OFF to cancel the DTMF memory encoder When the DTMF encoder is turned ON continuously each push of the PTT transmits the previously se lected DTMF code fy DTMF DTMF MEMORY ENCODER 9 Transmitting a DTMF memory directly Push FUNC then Low 6 DTMF to turn the DTMF memory encoder ON e d appears in place of the main band s 100 MHz digit Push DTMF S to turn the DTMF memory di rect selection ON e The function indicator microphone lights green Push the desired DTMF channel e 0 to 9 and A to D are available for DTMF memory channels The selected DTMF code is automatically transmit ted without pushing PTT NOTE When no DTMF code programmed channel number is pushed it transmits the rela tive DTMF code as the manual transmission de scribed in the next page Push DTMF S again to deactivate the DTMF memory direct selection Push FUNC then set B D OFF to cancel the DTMF memory encoder CI DTMF S N w gt Ku D DTMF MEMORY ENCODER Manual transmission fod DTMF S 1 Deactivate the DTMF memory encoder by pushing FUNC then set B D OFF Push DTMF S to turn the DTMF direct selec tion ON e The function indicator microphone lights green Push
50. channel selection Call channel is pre programmed memory channel that can be accessed by simply pushing call channel button Push M CALLeMW sev eral times to select the call channel mode then rotate the same band s DIAL to select the de sired call channel C1 or C2 appears in stead of memory channel Push M CALL MW several times to select call channel Ke E rrr number indication tal D LIT e Push the M CALL MWI sev GO nF al Gel ee ro eral times to select memory ae mode or push the same EE A band s V MHzeSCAN to se Or er appeals lect VFO mode Push MR CALL for 1 sec to select the call MR CALL channel mode then push A V to select the desired call channel in the main band Push MR CALL to select memory mode or push VFO LOCK to select VFO mode v INFORMATION mm mm When the VFO mode is tut Lu li 1 selected from the call channel 7 LI LI a small c appears instead of A d memory channel number 6 E Call channel transferring Push the desired band s M CALL MW several times then rotate the same band s DIAL to select the desired call channel e C1 or C2 appears Push the M CALL MW for 1 sec then rotate the DIAL to select the memory channel to transfer the contents to e ID indicator and memory channel number blink e To transfer to the VFO select with the DIAL then push the M
51. channel via A or V An 4 Push FUNC then cir A MW for 1 sec to program 3 beeps sound and the unit returns to VFO mode automatically G EXAMPLE Programming 145 120 MHz into the call channel 2 via the microphone Push 18 to select VFO mode Set the frequency Push ane then 22 Gare am 25 Gea Ga ses 23 ej GE an TEE Sc CC 5G 45 Il d S680 tm LJ IL tel TE DI TILIAN Tx Tx m is IL ms ILI e GS Re Ee until large C appears Push Cas then push eis for 1 sec 1111m ggg POUT nl VG 3 Beep nl 1051 JJ LA tl CL D r r Ze CE LI T mru7 ary r LESS ic iLi Se ech 39 E Scan types Scanning searches for signals automatically and makes it easier to locate new stations for contact or listening purposes SCAN OPERATION There are 3 scan types and 4 resume conditions to suit your operating needs maa eee 5 pairs of scan edges are available and scans 1A 1b P1 2A 2b P2 3A 3b P3 4A 4b P4 5A 5b P5 Repeatedly scans memory channels except those set as skip channels Used for often called channels and for by passing normally busy SCAN RESUME CONDITION p 45 Receiving a signal Pause scan Pff INM 2 sec Timer scan MIN Pausing 4 resume conditions are avail able 3 timer scans and pause scan When receiving a sig nal pause
52. ct memory bank condition e Bank initial blinks Push A V to select the desired bank A to J e Only programmed memory bank can be selected Push cLR A MW to set the bank Initial stops blinking Push A V to select the desired contents in the bank No channel numbers are displayed for memory bank operation To return to regular memory condition push FUNC mon 1 BANK then push cLR A MW E Memory bank setting Push the desired band s M CALL MW several times to select memory mode then select the desired memory channel via the same band s DIAL Push the same band s MAIN BAND for 1 sec e indication blinks as follows MAIN J wip hl TI ov LALLA AN Push the MAIN BAND again to set the channel to bank setting stand by condition e indication blinking stops Push the M CALL MW for 1 sec then rotate the DIAL to select the desired bank to be set Bank initial blinks as follows a Vg ame a ra a PUUE mr 05 17 BALIN SAT ge Push the M CALL MW again to set the channel into the bank e AP and bank initial blinking stops MEMORY OPERATION 5 Push the MAIN BAND for 1 sec then push the MAINeBAND momentarily again to return to regular mem ory condition Repeat steps to to set another memory channel into the same or another bank TY U Push MR CALL then select the desired
53. ct the desired band s left or right memory or call channel Push the desired band s M CALL MW several times to select memory mode or call channel then rotate the same band s DIAL to select the desired memory or call channel Push M CALL MW for 1 sec to transfer the selected EE q memory call channel contents to the VFO w e VFO mode is selected automatically MEMORY OPERATION 5 Push BAND to select the desired band as the main band if necessary Select the memory call channel to be transferred Push MR CALL to select memory mode then select the desired memory channel via A V or keypad Push MR CALL for 1 sec then push A V to select the call channel Push FUNC then cLR A MW for 1 sec to transfer the selected memory call channel contents to the VFO e VFO mode is selected automatically EXAMPLE Transferring memory channel 30 contents to VFO Front panel operation Push to select memory mode Rotate CH for selecting memory channel emm EE Dn Er er Jr CT NAN HM 133 operation Push am to select memory mode Select memory channel Litt HE ILL Push eat for 1 sec Push une then push for 1 sec 32 DN MEMORY OPERATION Memory call gt call memory Select the memory call channel to be transferred Push the desired band s M CALL MW several times to select mem
54. d right bands as follow VFO mode is selected QW indicator appears when Sines memory mode is selected See the specifications for the available frequency bands for 2 details Push the desired band s V MHzeSCAN to select VFO mode sine tS Left band Right band e When VFO mode is already selected the digit below 10 MHz the digit below 1 MHz or 100 kHz disappear depending on ver 127 v v sions disappear In this case push V MHz SCAN again or 222 v twice or 3 times depending on version 375 v v Push M CALL MW to select memory mode 500 v v e UR indicator appears when memory mode is selected 290 S Push VFO LOCK to select VFO mode The frequency band initials are default indication only Once the op VFO LOCK Push MR CALL to select memory mode erating frequency is set in the band the initial indication will be e The microphone controls the main band only Push changed Vv Available Not available BAND to toggle the main band then push VFO LOCK or MR CALL if necessary 12 2 SETTING A FREQUENCY E Using the tuning dial Rotate the desired band s DIAL to set the frequency elf VFO mode is not selected push the same band s V MHzeSCAN to select VFO mode e The frequency changes in the selected tuning steps p 14 Push V MHz SCAN Rotate the tuning dial To change the frequency in 1 MHz 10 MHz for some versions st
55. d specifications are subject to change without notice or obligation E Options HM 133 REMOTE CONTROL MICROPHONE Wired remote control microphone with key backlight Same as that supplied with the transceiver HM 118TAN TN DTMF MICROPHONE HM 118N HAND MICROPHONE HS 62 FLEXIBLE MOBILE MICROPHONE HS 15SB swITCH BOX OPC 589 ADAPTER CABLE For all round mobile operation OPC 1154 OPC 1155 SEPARATION CABLES A ferrite core is supplied with the OPC 1155 for the USA version Same as that supplied with the transceiver 3 5 m 11 5 ft OPC 1156 CONTROLLER EXTENSION CABLE Extends the supplied separation cable 3 5 m 11 5 ft SPECIFICATIONS AND OPTIONS 13 MB 84 REMOTE CONTROLLER BRACKET Same as that supplied with the transceiver MB 85 COMBINATION BRACKET Used for single body installation 20 cm 77 in remote control cable is supplied MB 65 MOUNTING BASE Mounts the remote controller on to variety of place in vehicle MB 84 is required for mounting MB 17A MOBILE MOUNTING BRACKET One touch bracket Transceiver main unit easily attached or re moved OPC 440 OPC 647 mic EXTENSION CABLES OPC 440 5 0 m 16 4 ft OPC 647 2 5 m 8 2 ft OPC 441 sPEAKER EXTENSION CABLE 5 0 m 16 4 ft SP 7 SP 10 EXTERNAL SPEAKERS SP 7 For base station use Cable length 1 0 m 3 3 ft SP 10 For all round mobile operation Cable length 1 5 m 4 9 ft OPC 347 1132 Dc POWER CABLES OPC 347 7 0 m 23 ft OPC 1132 3 0 m 9 8 ft Same as that
56. e microphone keypad lock function quency e Push LOWePRIO for 1 sec to cancel the watch p 47 MAINTENANCE 12 erroneous information PROBLEM POSSIBLE CAUSE SOLUTION REF Some memory channels The memory channel number has not yet been Select the channel via the microphone keypad to cannot be selected via the programmed check whether the channel has been programmed tuning dial or not Scan does not operate The squelch is open e Set the squelch to the threshold point p 16 e Only 1 memory channel is programmed or other Program other memory channels or cancel the pgs 30 channels are set as skip channels memory skip function in the desired channels 31 44 e Priority watch is activated e Cancel the watch p 47 Transmission is automati e Time out timer is activated e Set the timer to OFF p 61 cally cut off Transmission continues e One touch PTT function is activated e Turn the function OFF p 21 even when the PTT is re leased The function display shows e The CPU is malfunctioning Reset the CPU p 67 E Fuse replacement If the fuse blows or the transceiver stops functioning find the source of the problem if possible and replace the damaged fuse with a new rated one FGB 20 A as shown at right 74 E Specifications GENERAL Frequency coverage unit MHz Version Left Band Right Band idio vi ge x3 USA Rx 1
57. e touch PTT function _ O14 r L VISE Lt PTT g indicator blinks Le d 3 Push FUNC then prio 3 PTT M to turn the one touch PTT function OFF e The activity indicator goes out E Audio mute function This function temporarily mutes the audio without disturbing the volume setting Push FUNC then To A D MUTE to mute MUTE audio signals The memory channel number indicator shows the current condition and Si indications alternately e Push cLR A MW or any other key to cancel the function FN Shows the current condition and Si indication alternately E General Repeaters allow you to extend the operational range of your radio because a repeater has much higher output power than the typical transceiver Normally a repeater has indipendent frequencies for each re ceiver and transmitter A subaudible tone may also be required to access a repeater Reference amateur radio hand books and local ham maga zines for details of local repeaters such as repeater input out put frequencies and locations Repeater example Receives the 444 540 MHz signal and the detected audio signals are transmitted on 449 540 MHz simul taneously Station B Tx 444 540 MHz Rx 449 540 MHz Station A Tx 444 540 MHz Rx 449 540 MHz REPEATER OPERATION 4 Repeater operation flow chart Step 1 Set the desired band to operate the repeater Step 2 Set the desired
58. epeat this step if you make a mistake e The S RF indicator shows the digit group The indication increases every 6 digits EXAMPLE Programming 5428AB453 into DTMF memory channel d4 Push then Push Push D s ar D s er ar MAIN MAIN Mas YU Se EE Sn 7 In vt Any T ut IO OU ut r SN Er Push 23 EA EGG Push US MAIN Ta Tm MAN D SE Me LIT LL LII aah LL Tr IO Tell IL Ju Au Ty ot ange 51 ue 49 E Transmitting a DTMF code Automatic transmission DTMF memory Push TONE DTMF for 1 sec to turn the DTMF memory encoder ON e d appears in place of the main band s 100 MHz digit Push SE Tea to enter DTMF memory programming con dition Rotate main band s DIAL to select the desired DTMF memory channel Push PTT to transmit the selected DTMF memory content G Push TONE DTMF for 1 sec to cancel the DTMF en coder e When the DTMF encoder is turned ON continuously each push of the PTT transmits the previously selected DTMF code 1 Push FUNC then Low 6 DTMF to turn the DTMF memory encoder ON e g appears in place of the main band s 100 MHz digit 2 Push set B D OFF to enter the DTMF memory programming condition 3 Push A or V to select the desired channel 4 Push PTT to transmit the selected memory Exit the programming condition autom
59. eps push V MHzeSCAN then rotate DIAL e Pushing V MHzeSCAN for 1 sec starts scan function If scan starts push V MHzeSCAN again to cancel it MAIN MAIN zg OU IO oe a i ee While 1 MHz tuning step is While 10 MHz tuning step selected the digit below is selected the digit below 100 kHz disappear 1 MHz disappear E Using the AT V keys ry Push A or V to select the desired frequency AV e Push BAND to select the desired band left or right as the main band in advance e Pushing A V for 1 sec activates a scan If scan starts push A V or cLR A MW to cancel it E Using the keypad The frequency can be directly set via numeral keys on the mi crophone Push BAND to select the desired band left or ENT right as the main band c e Push VFO LOCK to select VFO mode if necessary 2 Push ENT C T OFF to activate the keypad for digit input 3 Push 6 keys to input a frequency e When a digit is mistakenly input push ENT C T OFF to clear the input then repeat input from the 1st digit e Pushing cLR A MW clears input digits and retrieves the frequency EXAMPLE Setting frequency to 145 3625 MHz Push a e bi H 2000 Push barne MAIN Push LS rat I7 Je Tee BL 3 E Tuning step selection usna SET MODE Tuning steps are the minimum frequency change increments when you rotate DIAL or push A W on the microphone Independent tu
60. es can be programmed in the same manner as memory channels Scan edges are programmed into scan edges 1A 1b to 5A 5b in memory channels Set the edge frequency of the desired frequency range in VFO mode Set the frequency using the desired band s DIAL Set other data e g repeater settings etc if desired Push the same band s M CALL MW for 1 sec e M indicator and channel number blink Rotate the DIAL to select one of scan edge channel 1A 2A 3A 4A or 5A SCAN OPERATION 7 Push the M CALL MW for 1 sec to program 3 beeps sound and VFO is automatically selected e Scan edge 1b 2b 3b 4b or 5b is automatically selected when continuing to push the M CALL MWI after programming To program a frequency for the other pair of scan edges 1b 2b 3b 4b or 5b repeat steps and e If the same frequency is programmed into a pair of scan edges programmed scan will not function EXAMPLE Programming 145 300 MHz into scan edges 1A Push att for 1 sec Rotate for setting frequency etc au MAIN GC 2511 HII 4 Rotate Lem Ee arm lt r Beep R Wl e sc i FF eep 10 gt UT Se D 354571 SILL 42 7 SCAN OPERATION Programming scan edges via microphone 1 Set the desired frequency in VFO mode To program a frequency for the other scan edge channels MW we Push VFO LOCK to select VFO mode re
61. f tapping AN screws ZAT Flat washer 25 O 3 3 on HI O E H em H H bar E o 3 QUICK REFERENCE GUIDE MB 84 installation The supplied MB 84 REMOTE CONTROLLER BRACKET is used for separate installation Drill 2 holes where the bracket is to be installed e Approx 4 mm 1 8 when using nuts approx 1 2 mm ae when using self tapping screws e Over head mounting Nut amp amp Remote controller Supplied screws Flat washer Standard mounting I Self tapping 9 screws Remote controller Supplied N screws Attach the remote controller to the MB 84 and tighten the controller using with the supplied screws Tighten the controller with bracket e Using the optional MB 65 Adjust the view ing angle for maximum visibili ty of the function display Optional MB 65 Optional MB 85 installation When using the optional MB 85 COMBINATION BRACKET YOU can install the control head of the IC 2720H in one of 2 meth ods A 20 cm 77 remote control cable is supplied for con nection and connect the cable before attaching the bracket to the main unit is recommended Example 1 Example 2 QUICK REFERENCE GUIDE O 3 3 D Q O E H H H i E o 3 lt QUICK REFERENCE GUIDE Separation cable connection A separation cable 3 5 m 11 5 ft is supplied with the IC 2720H Connect the controller and the main uni
62. h A V to select the desired frequency CC band band ATV Push cur A MW to exit the condition and re GE turn to frequency indication Push VFO LOCK to change main band then repeat the steps 1 to 3 for the other band N w A 7 NOTE e Memory channels are common for the left and right band Transmitting during the para watch operation is possible However the sub band s reception is deactivated during transmit as shown in the example at left SSN 3 BASIC OPERATION E Sub band mute sub band busy beep USING INITIAL SET MODE The sub band mute function automatically cuts out sub band Rotate the left band s DIAL to select the condition audio signals when both main and sub band signals are re DISPLAY SUB BAND MUTE BUSY BEEP ceived simultaneously SUb OF OFF OFF While operating on the main band a beep sounds to inform SUb OF OFF ON you that a signal was received on the sub band SUb On ON OFF SUb On eil ON ON ech S The display shows that i on We Cu edt P the sub band mute is Push PWR momentarily to exit initial set mode and return aera Eee turned ON and sub band to the previous indications busy beep is turned ON While pushing SET amp x3 push PWR for 1 sec to enter initial set mode While pushing SET 23 push PWR to enter initial set mode
63. he tone or DTCS squelch opens only when receiving a sig nal with the same pre programmed subaudible tone or DTCS code respectively Set the operating frequency in the main band Program the CTCSS tone frequency or DTCS code in set mode e See p 52 for programming details Push TONE DTMF several times until T SQL or DTCS appears in the function display When a signal with the matched tone is received the squelch opens and the signal can be heard e When the received signal includes an unmatched tone the squelch does not open However the S RF indicator shows the received signal strength e To open the squelch manually push DUP MONI Operate the transceiver in the normal way push PTT to transmit release PTT to receive To cancel the tone squelch push TONE DTMF several times until T SQL or DTCS disappears POCKET BEEP AND TONE SQUELCH 10 Set the operating frequency Program the CTCSS tone frequency or DTCS code in set mode e See p 53 for programming details Push FUNC then simp 9 TSQL or HIGH 4 DTCS to turn the tone squelch or DTCS squelch ON 4 When a signal with the matched tone is re ceived the squelch opens and the signal can be heard e When the received signal includes an unmatched tone the squelch does not open However the S RF indicator shows the received signal strength e To open the squelch manually push Moni 1 BANK 5 Operate
64. his function locks DIAL and switches electronically and can be used together with the microphone lock function Push SET 9 for 1 sec Gd 0000 Gei ape SEI 2 L s appear while the lock function is activated Push SET egg for 1 sec to turn the lock function ON and OFF e PTT DUP MONI monitor function only VOL SQL and MAINeBAND main band selection only can be used while the channel lock function is in use Also TONE 1 TONE 2 DTMF tones or DTMF memory contents can be transmitted from the mi crophone Push VFO LOCK for 1 sec to switch the VFO LOCK lock function ON and OFF Microphone keypad lock This function locks the microphone keypad Push FUNC then saLw D 16KEY L to switch the microphone keypad lock function ON and OFF PTT VFO LOCK MR CALL BAND A V F 1 F 2 DTMF S and FUNC on the micro phone can be used All switches on the transceiver can be used e The keypad lock function is released when the power is turned OFF then ON again 16KEY L E Receiving Set the audio level for the main band Push the desired band s MAINeBAND Push DUP MONI for 1 sec to open the squelch Rotate the main band s VOL to adjust the audio level Push the DUPeMONI for 1 sec to close the squelch Set the squelch level Rotate the main band s SQL fully counterclockwise in advance
65. ing a frequency within 118 000 to 160 000 MHz range in left band or 400 000 to 450 000 MHz range in right band only E Initial set mode at POWER ON The initial set mode is accessed at power ON and al lows you to set seldom changed settings In this way you can customize transceiver operations to suit your preference and operating style e Initial set mode items OTHER FUNCTIONS 11 Entering initial set mode While pushing SET gx3 push PWR for 1 sec to enter initial set mode Push Tt Tea or LOWePRIO to select the desired item Rotate left band s DIAL to select the condition or value Push PWR momentarily to exit initial set mode DTMF speed e Sub band mute Key touch beep Time out timer Auto repeater lt ei mm lt lt m lt ge ere Lf 1 Putt on AER LT eEul DI let rr Active band Auto power off oc DI ank HE WI Si 4 5 gt Push amp 3 _ front panel or microphone ru p LI Squelch attenuator gt Push front panel or microphone Cooling fan F L rm Available in the USA version only toe Et mel pi HHT NC e Microphone sensitivity e Squelch delay Packet operation band Data speed I I lt D g act Dit R Dia 13 LELT L t PAL TT bea EC 60 11 OTHER FUNCTIONS Key touch beep The key touch beep can be turned OFF for silent operation default ON
66. is more than 2 4 W O POWER RECEPTACLE DC13 8V Accepts 13 8 V DC 15 with the supplied DC power cable t NOTE DO NOT use a cigarette lighter socket as a power source when operating in a vehicle The plug may cause voltage drops and ignition noise may be su perimposed onto transmit or receive audio Speaker information EEN Left band audio Right band audio speaker No extemal Internal speaker mixed audio speakers SP 1 only External speaker mixed audio SP 2 only Internal speaker External speaker 2 external External speaker via External speaker via speakers SP 1 SP 2 PANEL DESCRIPTION 1 DATA JACK PIN ASSIGNMENT DM NEY Input terminal for data transmit See p 62 for details on how to toggle data speed between 1200 AFSK and 9600 bps G3RUH GMSK GND Common ground for DATA IN DATA OUT and AF OUT PTT P PTT terminal for packet operation only Connect ground to transmit data DATA OUT Data out terminal for 9600 bps operation only GJAF OUT Data out terminal for 1200 bps operation only OP SQL Becomes high 5 V when the transceiver receives a sig nal which opens the squelch To avoid unnecessary TNC transmission connect squelch to the TNC to inhibit transmission when receiving signals Keep audio output at a normal level otherwise a P SQL signal will not be output I 6 Front panel view 6 1 PANEL DESCRI
67. issions e Microphone connector RECEIVER e Receive system Intermediate frequencies Left band Variable reactance frequency modulation VHF 50 15 5 W approx UHF 35 15 5 W approx 25 15 5 W only for the Taiwan version 5 0 kHz wide 2 5 kHz narrow Left band only Less than 60 dB 8 pin modular 600 9 Double conversion superheterodyne 1st 38 85 MHz 2nd 450 kHz Right band 1st 46 05 MHz 2nd 455 kHz Sensitivity FM at 12 dB SINAD AM at 10 dB S N Frequency range Left band uV Right band pV 118 159 995 MHz 0 18 0 45 160 173 995 MHz 0 32 0 2 174 179 995 MHz 0 32 N A 180 219 995 MHz 3 5 N A 220 259 995 MHz 0 32 0 79 N A 260 349 995 MHz 3 2 5 6 N A 350 374 995 MHz 0 32 1 0 N A 375 399 995 MHz 0 22 0 63 400 429 995 MHz 0 22 430 450 MHz 0 18 450 005 499 995 MHz 0 22 500 549 995 MHz 0 32 0 22 810 879 990 MHz N A 0 45 880 999 990 MHz N A 1 0 e Squelch sensitivity threshold e Selectivityt typical S Wide More than 12 kHz 6 dB Less than 30 kHz 60 dB More than 6 kHz 6 dB Less than 20 kHz 60 dB More than 60 dB More than 2 4 W at 10 distortion with an 8 Q load 3 conductor 3 5 d mm 1 8 Q Less than 0 13 pV Narrow USA only e Spurious and image rejection e AF output powert at 13 8 V DC Ext speaker connectors tGuaranteed 144 148 MHz and 430 440 or 440 450 MHz ranges only All state
68. it release to receive UP DOWN SWITCHES UPJ DN Push either switch to change operating frequency memory channel set mode setting etc pgs 13 29 56 sr Push either switch for 1 sec to start scanning p 41 UP DN LOCK SWITCH Slide to toggle UP DN switches function ON and OFF O KEYPAD HM 118TN TAN only While pushing PTT push the desired key to send the DTMF code em 2 11 E Preparation Turning power ON OFF Push PWR for 1 sec a Zei al Jos 0500 GB Push PWR for 1 sec to turn power ON and OFF MAIN band The IC 2720H can receive 144 MHz and 430 440 MHz band signals simultaneously To activate all functions access or to change frequency via the microphone you must designate one band as the main band The transceiver transmits a sig nal on the main band only Push the desired band s MAINSBAND S EN ES G Gooot Push the desired band s MAIN BAND to select the main band e WM indicates the main band IV Push BAND to toggle the main band between BAND left and right bands SETTING A FREQUENCY Operating frequency band selection In the default condition or after resetting the CPU 2 m band is assigned in the left band 70 cm band is assigned in the right band However the 2 m band can also be assigned into the right and 70 cm band can also be assigned into the left band
69. itch or key to deactivate it p 21 e Squelch is set too high e Set the squelch level to the threshold p 16 e A selective call or squelch function is activated e Turn the appropriate function OFF pgs 52 such as pocket beep or tone squelch 53 54 Sensitivity is low and only Antenna feedline or the antenna connector has ale Check and if necessary replace the feedline or sol p VII strong signals are audible poor contact or is short circuited der the antenna connector again e Squelch attenuator function is activated e Set SQL between 10 12 o clock position p 17 No contact possible with The other station is using tone squelch Turn the tone squelch function ON p 54 another station e The transceiver is set to duplex e Set to simplex p 23 Repeater cannot be ac Wrong offset frequency is programmed e Correct the offset frequency p 27 cessed e Wrong subaudible tone frequency is programmed Ve Correct the subaudible tone frequency p 25 Frequency cannot be set The frequency lock function is activated e Turn the function OFF p 15 e Priority watch is paused on the watching frequency e Push LOWePRIO for 1 sec to cancel the watch p 47 Frequency cannot be set The frequency lock function is activated e Turn the function OFF p 15 via the microphone e The microphone keypad lock function is activated e Push FUNC then sav 16KEY L to deactivate p 15 e Priority watch is paused on the watching fre th
70. ll channel is selected How ever this will be cleared when the memory call channel is re selected When the CTCSS tone frequency or 3 digit DTCS code is matched the squelch opens and the tone frequency is temporarily programmed into the selected condition such as memory or call channel e The tone scan pauses when a CTCSS tone frequency or 3 digit DTCS code is detected e The decoded CTCSS tone frequency or 3 digit DTCS code is used for the tone encoder or tone encoder decoder depending on the selected tone condition or type in step T SQL CTCSS tone encoder decoder DTCS DTCS tone encoder decoder Push V MHz SCAN to stop the scan 1 Set the frequency or memory channel to be checked for a tone frequency 2 Selects the tone type to be scanned e Push FUNC then push simp 9 TSQL for tone squelch HIGH 4 DTCS for DTCS squelch 3 Push FUNC then scan 2 T SCAN to start the tone scan 4 When the tone frequency is matched the squelch opens and the tone frequency is pro grammed into the selected mode such as memory or call channel 5 Push CLR A MW to stop the scan E T SCAN OTHER FUNCTIONS 1 1 E Set mode e Set mode operation Push the desired band s MAIN BAND to select the main band Push SET amp 3 to enter the set mode Push It Tea or LOW PRIO to select the desired item Rotate the main band s DIAL
71. ls to suit your oper ating requirements Low output powers during short distance communications may reduce the possibility of interference to other stations and will reduce current consumption Push LOWePRIO once or twice to select the output power POWER OUTPUT S RF INDICATOR VHF UHE ae ER High conssi 50 W 35 W 25 W Mid enne 15WY 15W 15 W Low soms 5 W 5 W l 5 W approx e The output power can be changed while transmitting The microphone can also be used to select output power CC Push Joen 4 DTCS for high output power HIGH mb 5 DTCS for middle output power and NY Low 6 DTMF for low output power ee e The output power can be changed via the microphone MID during receive only Se lt 21 3 BASIC OPERATION E One touch PTT function The PTT switch can be operated as a one touch PTT switch each push toggles between transmit receive Using this function you can transmit without pushing and holding the PTT switch To prevent accidental continuous transmissions with this function the transceiver has a time out timer See p 61 for details Push FUNC then Prio 3 PTT M to turn the PTT M one touch PTT function ON e The activity indicator lights green 2 Push PTT to transmit and push again to re ceive A beep sounds when transmission is started and a long beep sounds when returning to receive e EE blinks when transmitting with the on
72. ly excited to get on the air We would like to take you through a few basic operation steps to make your first On The Air an enjoyable experience 1 Turning ON the transceiver Before powering up your IC 2720H you may want to make sure the audio volume and squelch level controls are set in 9 10 o clock positions Set both VOL and SQL controls to 9 10 o clock positions Although you have purchased a brand new transceiver some settings may be changed from the factory defaults because of the QC process Resetting the CPU is necessary to start from factory default of OD M CALL MWI SS ken MW While pushing both M CALL MWI turn power ON While pushing both band s M CALL MW push PWR for 1 sec to reset the CPU QUICK REFERENCE GUIDE 2 Selecting the main band The IC 2720H displays 2 frequencies on left and right bands simultaneously However transmission some switches and microphone keys operation are accepted for the main band only Push the desired band s er Om OA AI MAINBAND DW JZ O OG 00 Push the desired band s left or right MAIN BAND to se lect the main band e UEN appears for the main band Using the HM 133 You can select the main band from the HM 133 Push O 3 3 D o O E H H H L E o 3 VIII QUICK RE
73. mory channel selection Using the tuning dial Push the desired band s ofo OC Si J IM CALL MW several times to select memory 00008 mode e TY indicator appears Rotate the same band s DIAL to select the de sired memory channel Push M CALLeMW to select memory mode E E rr Programmed memory pet 1171 IL channels only can be se D 1 lected P appears Using the A V keys Ti DU Push BAND to select the desired band as MR CALL me main band 2 Push MR CALL to select memory mode le 3 Push A or V to select and set the desired memory channel e Pushing A V for 1 sec activates a scan e lf scan is activated push A W again or push cLR A MW to stop it Using the keypad Ge 1 Push BAND to select the desired band as MR CALL me main band 2 Push MR CALL to select memory mode f 3 Push ent C T OFF to activate the keypad NZ for numeral input 4 Push 3 appropriate digit keys to input a chan nel number e Blank channel can be selected e Push only 1 appropriate digit key Moni 1 BANK SCAN 2 T SCAN PRIO 3 PTT M HGH 4 DTCS or mip 5 DTCS then push TONE 1 or saLv 16KEY L to select scan edge channels and can be used for A and b respectively E Programming a memory channel VFO settings incl
74. n a5 LL L Push and hold PTT to transmit 5 Release PTT to receive Push moni 1 BANK to check whether the other station s transmit signal can be received directly 24 4 REPEATER OPERATION Set the main band mode channel you wish to j USING SET MODE a See tones set the subaudible tones to such as VFO mode Encoder function or memory call channel Subaudible tones The subaudible tone frequency is independently pro Select the main band mode channel you wish to set the Gratapel nto acii Medeo channel 2 Push set B D OFF to enter set mode es tones to such as VFO mode or memory call 3 Push ser B D OFF or ent C T OFF several Push SETE to enter set mode times until T and rt appears or until T SQL Push SET exg or DUP MONI several times until T and and Ct appears for tone squelch or pocket E 8 Per i EC beep use ri appear or EES tone e When d is displayed in place of the 100 MHz digit squelch or pocket beep use arie cancel the DTMF memory encoder in advance p 50 e When d is displayed in place of the 100 MHz digit cancel the DTMF memory encoder in advance p 50 Bi 4 NZ 4 ZA OOOO E Push 375 ZB COOC ck D OO re so Fol ve g GO mm D U Te T and rt appear JET 4 Push
75. ncy priority watch checks for a signal on the selected memory channel every 5 sec 50 msec Memory channel MEMORY SCAN WATCH While operating on a VFO fre quency priority watch checks for signals on each memory chan nel in sequence The memory skip function is useful to speed up the scan 50 msec CALL CHANNEL WATCH While operating on a VFO fre quency priority watch checks for signals on the call channel every 5 sec 46 47 8 PRIORITY WATCH E Priority watch operation Select VFO mode then set an operating frequency in the desired band left or right Set the watching channel s For memory channel watch Select the desired memory channel For memory scan watch Select memory mode then push the same band s V MHzeSCAN for 1 sec to start memory scan For call channel watch Select the desired call channel by pushing the same band s M CALL MW once or twice then rotate the DIAL Push LOWePRIO for 1 sec to start the watch The transceiver checks the memory or call channel every 5 sec The watch resumes according to the selected scan resume con dition p 45 e While the watch is pausing pushing the M CALL PRIO re sumes the watch manually Push LOWePRIO for 1 sec to stop the watch VU e O q Select VFO mode then set the desired fre quency Set the watching channel s F
76. ng mode master transceiver only power on only for sub transceiver e CLOnE appears and the transceivers enter the clone standby condition While pushing left band s M CALL MW turn power ON Push the same M CALL MW on the master transceiver e CLOnE OUt appears in the master transceiver s display and the S RF indicators show that data is being transferred to the sub transceiver e CLONE In appears automatically in the sub transceiver s dis play and the S RF indicators show that data is being received from the master transceiver Pushing left band s M CALL eMW start cloning When cloning is finished turn power OFF then ON to exit cloning mode 11 OTHER FUNCTIONS Cloning using a personal computer Data can be cloned to and from a personal computer Mi crosoft Windows 98 2000 Me XP using the optional CS 2720 CLONING SOFTWARE and the optional cloning cable OPC 478U USB type or OPC 478 RS 232C type Consult the CS 2720 CLONING SOFTWARE HELP file for details Cloning error t NOTE DO NOT push any key on the sub transceiver dur ing cloning This will cause a cloning error When the display as below appears a cloning error has oc curred r TI E y GG ZIL In such a case both transceivers automatically return to the clone standby condition and cloning must be repeated Microsoft and
77. ning step for the left and right as well as each frequency bands can be set for individual tuning convenience The following tuning steps are available e5 kHz e 10 kHz e 12 5 kHz e 15 kHz e 20 kHz e 25 kHz e 30 kHz e 50 kHz 1 NOTE For convenience select a tuning step that matches the frequency intervals of repeaters in your area Push the desired band s MAIN BAND to select the main band e Push the same band s V MHz SCAN to select VFO mode if necessary Q Push SET gx3 to enter set mode Push SET fE Ee o lt J LOW PRIO Q Push SET ex3 or LOW PRIO several times until tS ap pears as shown below ama L L Liu oe Ss LI OV al SETTING AFREQUENCY 2 Rotate the same band s DIAL to select the desired tuning step Push TONE DTMF to exit set mode Push BAND to select the desired band left or SET right as the main band B e Push VFO LOCK to VFO mode if necessary Push set B D OFF to enter set mode Push set B D OFF or Ent C T OFF several times until tS appears Push A or V to select the desired tuning step Push ctr A MW to exit set mode N w gt Ku 14 2 SETTING A FREQUENCY E Lock functions To prevent accidental frequency changes and unnecessary function access use the lock function The transceiver has 2 different lock functions Frequency lock T
78. not successful even though the TX indicator lights continuously Increase the TNC output level OTHER FUNCTIONS 11 Packet operation band selection Both bands or either the left or right band only can be spec ified for packet operation to suit your preference While pushing SET 3 turn power ON to enter initial set mode Push SET exg or LOWePRIO to select the PAC item Rotate the left band DIAL to select the desired band from auto At default left L and right r Auto At The main band is used for packet oper ation e Left L Right r The selected left or right band can only be used for packet operation Fe 574 ns OO oe E HHC FU Mi Zei j Gei mk ZA a Push PWR to exit initial set mode 72 mm 12 MAINTENANCE If your transceiver seems to be malfunctioning please check E Troubleshooting the following points before sending it to a service center PROBLEM POSSIBLE CAUSE SOLUTION REF Does not turn on Power connector has a poor contact e Check the connector pins e Polarity of the power connection is reversed Re connect the power cable observing the proper pgs VI polarity Replace the fuse if damaged 74 Blown fuse e Check the cause then replace the fuse p 74 No sound comes from the Volume is too low e Rotate VOL clockwise p 16 speaker e The audio mute function is activated Push any sw
79. nt When pushing both V MHzeSCAN and turning the power ON partially reset both bands at the same time ALL reset The function display may occasionally display erroneous in formation e g when first applying power This may be caused externally by static electricity or by other factors AT POWER ON If this problem occurs turn power OFF After waiting a few seconds turn power ON again If the problem persists per form the following procedure e Partial resetting is also available See left for details 7 MPORTANT G Resetting the transceiver CLEARS all memory information E and initializes all values in the transceiver While pushing both band s M CALL MWI turn the power ON to reset the CPU M CALL MW l t M CALL MW Ooo While pushing both M CALL MWI turn power ON E Data cloning Cloning allows you to quickly and easily transfer the pro grammed contents from one transceiver to another or data from a personal computer to a transceiver using the optional CS 2720 CLONING SOFTWARE AT POWER ON Cloning between transceivers Connect the OPC 474 cloning cable to the SP 2 jack of the master and sub transceivers e The master transceiver is used to send data to the sub trans ceiver Koss 0000 18 To SP 2 To SP 2 OTHER FUNCTIONS 11 While pushing left band s M CALL MWI turn power ON to enter cloni
80. ons in the main band or both left and right bands can be memorized into F 1 and F 2 keys in dependently e Operating frequency Repeater setting offset direction and frequency tone ON OFF and frequency e Tone DTCS squelch ON OFF frequency code and polarity e Transmit output power selection Tuning step e Operating mode selection FM AM e Set mode settings e Initial set mode settings Only when storing both bands conditions Programming the both bands condition After setting the desired contents of each condition in the both bands push FUNC then push F 1 F 2 for 1 sec 3 beeps sound F 1 F 2 Recalling the both bands condition Push FUNC then F 1 F 2 momentarily Programming the main band condition Set the desired contents of each condition in the main band then push F 1 F 2 for 1 sec 3 beeps sound Recalling the main band condition Push F 1 F 2 momentarily 11 OTHER FUNCTIONS E Partial reset If you want to initialize the operating conditions VFO fre quency VFO settings set mode contents without clearing the memory contents a partial resetting function is available for the transceiver left and right bands independently While pushing desired band s V MHz SCAN turn the power ON to partially reset the desired band left or right Wi og 0 00 J Left band partial reset Right band partial reset ar POWER ON v Hi
81. or The display color can be set to amber default or green KE Vi Te A4 COOK H COCK by Repeater tone Sets subaudible tone frequency encoder only for repeater operation Total of 50 tone frequencies 67 0 254 1 Hz are available default 88 5 Hz Do fyr mad fyr WA 5 ne Tone squelch tone Sets subaudible tone frequency both encoder and decoder for tone squelch operation Total of 50 tone frequencies 67 0 254 1 Hz are available default 88 5 Hz OM MAIN ei el eo SOL 7 N d D fe L Available subaudible tone frequencies rr 67 0 79 7 94 8 110 9 131 8 156 7 171 3 186 2 203 5 229 1 69 3 82 5 97 4 114 8 136 5 159 8 173 8 189 9 206 5 233 6 71 9 85 4 100 0 118 8 141 3 162 2 177 3 192 8 210 7 241 8 74 4 88 5 103 5 123 0 146 2 165 5 179 9 196 6 218 1 250 3 77 0 91 5 107 2 127 3 151 4 167 9 183 5 199 5 225 7 254 1 DTCS code Sets DTCS code both encoder and decoder for DTCS squelch operation Total of 104 codes are available default 023 DTCS polarity Sets DTCS ee for transmission and reception from nn nr rn and r default nn NA fo AN d PAIN J prs mm mee CO ie an D ped H an Fa fal eo deren d n 17 e Transmit normal e Transmit normal Receive normal Receive reverse default Offset frequency Sets the duplex offset frequency
82. or memory channel watch Push MR CALL then A or V to select the de sired memory channel For memory scan watch Push MR CALL then push scan 2 to start the memory scan For call channel watch Push MR CALL for 1 sec then push A or V to select the call channel Push PRIO 3 PTT M to start the watch e The transceiver checks the memory or call channel every 5 sec The watch resumes according to the selected scan re sume condition p 45 e To resume the watch manually when paused push PRIO 3 PTT M or cLR A MW To stop the watch push cLR A MW once or twice while watch is paused DTMF MEMORY ENCODER E Programming a DTMF code DTMF tones are used for autopatching controlling other equipment etc The transceiver has 14 DTMF memory chan nels d0 dd for storage of often used DTMF codes of up to 24 digits Push TONE DTMF for 1 sec to turn the DTMF encoder ON e Select the main band in advance by pushing the desired band s MAIN eBAND if necessary e d appears in place of the main band s 100 MHz digit Push SET amp to enter the DTMF memory programming condition e The DTMF memory channel indication blinks 9 Rotate the main band s DIAL to select the desired DTMF memory channel Push SET ex3 e The first digit blinks Rotate the DIAL to select the desired code Push SET eg9 to select the next digit e Pushing LOW PRIO move the c
83. ory contents p 50 8 ol 1 PANEL DESCRIPTION KE lt FUNCTION SECONDARY FUNCTION key OTHER FUNCTIONS Cancels frequency entry p 13 Cancels the scan or priority watch Selects a memory channel for program ming p 31 pgs 41 47 Advances the memory channel number Exit set mode p 56 when continuously pushed after pro gramming is completed p 31 Enters set mode p 56 DTMF memory encoder function OFF Advances the set mode selection order p 50 after entering set mode p 56 Sets the keypad for numeral input Turns the subaudible tone encoder pocket SE p 13 beep or CTCSS DTCS tone squelch OFF Reverses the set mode selection order pgs 24 53 after entering set mode p 56 Adjusts the squelch level increments Mutes the audio p 21 MUTE saLaD p 16 e Mute function is released when any oper ation is performed Decreases audio output level p 16 Sends a 1750 Hz tone signal for 0 5 sec p 26 Qs lt a SS Ge E Hr oe Adjusts the squelch level decrement p 16 Locks the digit keys on the keypad includ ing the A to D and keys p 15 After pushing cus Transmits the appropriate DTMF code pgs 26 50 E Optional Microphones HM 118N TN TAN es HM 118N e HM 118TN TAN DTMF PANEL DESCRIPTION 1 PTT SWITCH Push and hold to transm
84. ory mode or call channel then rotate the same band s DIAL to select the desired memory or call EE channel Push the same band s M CALL MW for 1 sec A V EP indicator and indication blink and shows VFO condi 7 tions Rotate the DIAL to select the target memory channel e C1 or C2 blinks when the call channel is selected Scan edge channels 1A 1b 2A 2b 3A 3b 4A 4B 5A 5b can also be selected Push the M CALL MW for 1 sec to transfer the selected memory call channel contents to the target memory The targeted memory and transferred contents are indicated I ka O gt E es Select the memory call channel to be trans ferred Push MR CALL to select memory mode then select the desired memory channel via A V or keypad Push MR CALL for 1 sec then push A V to select the desired call channel Push FUNC then ctr A MW momentarily es ART indicator and indication blink and shows VFO conditions Push A VW to select the target memory channel e C1 or C2 blinks when the call channel is selected e Scan edge channels can also be selected e The keypad cannot be used for the selection Push FUNC then push cir A MW for 1 sec to transfer the selected memory call channel contents to the target memory e The targeted memory and transferred contents are indicated
85. peat steps 1 to 4 Set the frequency via the keypad or A V 2 Push FUNC then cLR A MW momentarily 3 Push A or V to select scan edge channels 1A 2A 3A 4A or 5A 4 Push FUNC then push cLR A MW for 1 sec to program 3 beeps sound and VFO is automatically selected e Memory channel number advances to the next scan edge channel 1b 2b 3b 4b or 5b when continuing to push cLR A MW after programming oa EXAMPLE Programming 145 800 MHz into scan edge 1b Push Push 135 Les Ce aal 3 Bsa 25 Push ene then ra momentarily PLEN sed af LEFT SEED 45800 15687 I Tx rt D le as IL II c bei 1 N Push Push ne then cits for 1 sec and continue to push gt 5 corr corr _ Beep 111 Fe Beep II Zei ee V R 18 UMN Tell LIT E Skip channel setting USING SET MODE The memory skip function speeds up scanning by checking only those memory channels not set as skip channels Set skip channels as follows MAIN The display shows that memo LINTE ry channel 1 is set as a skip LHASA channel i Select a memory channel in the desired band Push the desired band s M CALL MWI to select mem ory mode Rotate the same band s DIAL to select the desired channel to be a skip channel Push SET egy to enter set mode Push SE
86. r LOW PRIO to select Att On squelch attenuator item Rotate the left band s DIAL to toggle the function ON and OFF e Select OF to deactivate the squelch attenuator function E T za LPUSVT DL ee ez gr EI le e In ae ee Ee meen el Push PWR to exit initial set mode BASIC OPERATION 3 E V V U U simultaneous receive Para watch The IC 2720H can simultaneously receive two signals on the same band such as 144 MHz band using the para watch function between VHF and Can be switched UHF Example MAN J ae i Ir CLE LI aounecuee Obl While transmitting on the main band the sub band s memory channel readout shows the current condition and Si indication alternately Push either the left or right band s MAIN BAND for 1 sec to select the frequency band selecting condition Rotate the same band s DIAL to select the desired fre quency band Push the MAIN BAND to return to frequency indication Set the desired frequency G Repeat the steps to for the other band left or right To activate the para watch function from the HM 133 enter the desired frequencies for each the left and right bands using the direct frequency input capability via the keypad or per form the following operation Push FUNC the push Bank 1 MONI to se BANK lect frequency band selecting condition e The frequency band initial appears on the main band Pus
87. r extend the separation cable e Optional MB 65 MouNTING BASE is available for increasing front panel mounting possibilities e Optional OPC 440 MICROPHONE CABLE 5 0 m 16 4 ft and OPC 647 2 5 m 8 2 ft are available to extend the micro phone cable e Optional OPC 441 SPEAKER CABLE 5 0 m 16 4 ft is avail able to extend the speaker cable Location Select a location which can support the weight of the trans ceiver and does not interfere with driving We recommend the locations shown in the diagram below NEVER place the transceiver or remote controller where nor mal operation of the vehicle may be hindered or where it could cause bodily injury NEVER place the transceiver or remote controller where air bag deployment may be obstructed DO NOT place the transceiver or remote controller where hot or cold air blows directly onto it AVOID placing the transceiver or remote controller in direct sunlight QUICK REFERENCE GUIDE Using the mounting bracket Drill 4 holes where the mounting bracket is to be installed Approx 5 5 6 mm 14 when using nuts approx 2 3 mm when using self tapping screws Insert the supplied screws nuts and washers through the mounting bracket and tighten Adjust the angle for your suitable position Nut Spring washer SE 4 Mounting bracket When using sel
88. ransceiver to rain snow or any liquids The transceiver may be damaged NEVER operate or touch the transceiver with wet hands This may result in an electric shock or damage the transceiver NEVER place the transceiver where normal operation of the vehi cle may be hindered or where it could cause bodily injury NEVER eet objects impede the operation of the cooling fan on the rear panel DO NOT push the PTT when not actually desiring to transmit DO NOT allow children to play with any radio equipment contain ing a transmitter During mobile operation DO NOT operate the transceiver with out running the vehicle s engine When the transceiver s power is ON and your vehicle s engine is OFF the vehicle s battery will soon be come exhausted AVOID using or placing the transceiver in direct sunlight or in areas with temperatures below 10 C or above 60 C BE CAREFUL The transceiver will become hot when operat ing it continuously for long periods AVOID setting the transceiver in a place without adequate venti lation Heat dissipation may be affected and the transceiver may be damaged AVOID the use of chemical agents such as benzine or alcohol when cleaning as they can damage the transceiver s surfaces USE Icom microphones only supplied or optional Other manu facturer s microphones have different pin assignments and may dam age the transceiver if attached For U S A only CAUTION Changes or modifications
89. receive frequency repeater output frequency Step 3 Set the duplex shifting direction duplex or duplex Set the offset frequency shifting value if required Step 4 Set the subaudible tone repeater tone encoder function ON Set the subaudible tone frequency if required e The IC 2720H USA version has the auto repeater function Thus the steps 3 and 4 may not be necessary depending on the setting Repeater settings can be stored into a memory channel 22 4 REPEATER OPERATION E Accessing a repeater Set the receive frequency repeater output frequency on the main band pgs 11 13 Push DUP MONI one or two times to select minus du plex or plus duplex DUP or DUP appears to indicate the transmit frequency for minus shift or plus shift respectively e When the auto repeater function is turned ON available for the USA version only steps and are not necessary p 28 DUP or DUP appear Q Push TONE DTMF several times to turn ON the subaudi ble tone encoder according to repeater requirements e T appears e 88 5 Hz is set as the default refer to p 25 for tone frequency set tings When the repeater requires a different tone system see p 26 Ip DUP TS Con rss LI Push DUP MONI once or twice 111 tt T appears Push TONE DTMF once or twice Push and hold PT
90. rrvnrvvrnnrnn 52 E Tone DTCS squelch operation m muunrverververververververvenvenvensennene 54 ee LEE 55 11 OTHER FUNCTIONS imuevenvnnvnnvnnvnnnnnnnnnnnnnnnnnnnnnnnnennennennennennennennen 56 72 E Set Mode E E Initial set mode E AM FM narrow mode E Weather channel operation USA version only s eeseeeeeee 65 Mi Microphone Keys mmmrrvrrvvrrrerrversvervrerverrvevsvernen 66 E Partial reset 67 E All reset E Data cloning E Packet operation edd ENEE NEE eeh tan 12 MAINTENANCE E Troubleshooting E Fuse replacement S 13 SPECIFICATIONS AND OPTIONS i nnnnnnvnnvnnvnnennennennennennennennennen 75 76 M Specifications am okee a 75 E Options uo 76 14 MODE ARRANGEMENT eennnvnnnnnnnnnnnnnnnnnnnnnnnnennennennennennennennennen 77 78 Ja IV HE QUICK REFERENCE GUIDE E Installation gt Installation methods e Single body installation Remote installation Transceiver R Front panel Main body e Optional MB 85 COMBINATION BRACKET is necessary to mount the controller to the main unit 20 cm 774 separa tion cable is supplied with the bracket e The supplied mounting bracket or optional MB 17A can be used for the main unit installation e The supplied MB 84 REMOTE CONTROLLER BRACKET and OPC 1155 SEPARATION CABLE can be used for installation e Optional OPC 1156 SEPARATION CABLE 3 5 m 11 5 ft is available fo
91. set mode While pushing SET G3 push PWR to enter initial set mode Push SET amp x3 or LOW PRIO several times until the Pr display appears as shown above right REPEATER OPERATION 4 Rotate left band s DIAL to select the auto repeater func tion from r1 r2 or OFF GENE our nm our T o e ol e e ZC ree cc Auto DUP set ON Auto tone set OFF Auto DUP set ON Auto tone set ON e r1 auto repeater is ON tone encoder is OFF e r2 auto repeater is ON tone encoder is ON Push PWR to exit initial set mode Frequency range and offset direction Frequency range Duplex direction 145 200 145 495 MHz 146 610 146 995 MHz DUP appears 147 000 147 395 MHz DUP appears 442 000 444 995 MHz DUP appears 447 000 449 995 MHz DUP appears 5 MEMORY OPERATION E General description The transceiver has 212 memory channels including 10 scan edge memory channels 5 pairs and 2 call channels Each of these channels can be individually programmed with operating frequency pgs 11 13 duplex direction p 23 and offset p 27 subaudible tone encoder or tone squelch and its tone frequency pgs 23 25 52 53 and skip information p 44 In addition a total of 10 memory banks A to J are available for usage by group etc except for scan edge memory channels E Me
92. supplied with the transceiver CS 2720 CLONING SOFTWARE OPC 478U CLONING CABLE Provides quick and easy programming items such as memory chan nels set mode contents for local repeater frequencies via PC s USB terminal RS 232C type cloning cable OPC 478 also available OPC 474 CLONING CABLE Used for data cloning between transceivers 77 MODE ARRANGEMENT VFO mode p 12 INITIAL SET MODE FE Key touch beep p 61 Time out timer p 61 fe I LOW gt gt prio H s vaie a I ee errr UDT let i ae MEMORY MODE p 29 Sub band mute p 63 DTMF speed p 63 for 1 sec SET MODE WEATHER CHANNEL p 65 SE PN USA version only AN LI e fa H SECH LI lt LUL II lt 4 z Display dimmer p 57 Display color p 57 3 I O SET DTMF MEMORY og E l Low d ad AJ Se en emm __ oh DI FE re ZE EE i Lo II a meh oe lt See p 48 for details See p 68 for details 1st Lo frequency p 59 Weather alert p 59 MODE ARRANGEMENT 14 Auto repeater p 61 Auto power off p 61 Cooling fan p 62 Data speed p 62 Packet operation band p 62 USA version only Di er 5 See EE rie I sv ru LT i EL L Active band p 63 Squelch attenuator p 62 Microphone sensitivity p 62 Squelch delay p 62 r Ge we bb DTCS H ci DTCS HR Ge KE gt ol gt oft gt
93. t using with the sepa ration cable as follows Controller So Z Je LI GcssO Main unit See IMPORTANT below IMPORTANT For the USA version A ferrite core is supplied within the separation cable Connect the cable connector with the ferrite core into the main unit CONTROLLER socket as below Microphone connection Two microphone connectors are available for the IC 2720H one is on the controller side panel and another is on the main unit front panel Connect the supplied microphone to either the desired con nector as illustrated below Controller 00000 Tom 00000 00000 Battery connection c AWARNING NEVER remove the fuse holders from the DC power cable t NEVER connect the transceiver directly to a 24 V battery DO NOT use the cigarette lighter socket for power con nections See p 6 for details Attach a rubber grommet when passing the DC power cable through a metal plate to prevent a short circuit e CONNECTING TO A DC POWER SOURCE Nove LS LU red black WARNING NEVER Fuses remove the 20A fuse holders 12V SOA soit P Supplied DC power cable NOTE Crimp Dr Use terminals for the SG cable connections SS X QUICK REFERENCE GUIDE DC po
94. to this device not ex pressly approved by Icom Inc could void your authority to operate this device under FCC regulations SUPPLIED ACCESSORIES Lee CH E A 7 co ir nn x 0000 0000 cio 0000 TTET TT TT 00 00 OG DC power cable Gm 1 Mobile mounting bracket 1 Microphone HM 133 ccccceseesseeceeeeceeeesaaeeeeeeees 1 Fuse 20 A occcceccccceesesccccecceeeeesseeeeceeeceeeeesaaaaneeeees 1 Mounting screws nuts and washers rrrrrrrnrrr 1 set Microphone hanger cccccccceesseseeceeeeceeeessaaeeeeeees 1 Remote controller bracket MB 84 cccssseeeeeeees 1 Mounting screws nuts and washers for MB 84 1 set Separation cablet 3 5 m 11 5 ft rrrrrrrrrrrrrrrrrnnnrr 1 HM 118N HAND MICROPHONE or HM 118TN TAN DTMF MICROPHONE supplied versions are also available tA ferrite core is adapted for the USA version TABLE OF CONTENTS FOREWORD EE i IMPORTANT eerst ENEE Nee i EXPLICIT DEFINITIONS universer i PRECAUTION wii SUPPLIED ACCESSORIES rrsnrrnrnvrnrnnrnrrnrrersnresenvnrssrnrssrrersreserrnsssnnenn iii TABLE OF CONTE N O a vestezceaseituiie ses eege Eed ENEE de QUICK REFERENCE GUIDE NC HE TEE E Your first contact E Repeater operation E Programming memory channels we XI 1 PANEL DESCRIPTION m 1 10 E Front panel con
95. troller osrronvronrnornnnvnnnvnnnvnenvennrnnnnnnnnnnvnnnrnsnenen 1 E Function display EE 3 BM Main Unit aaea n EE ekte kreve 5 E Microphone HM 133 oo eeeeeeeeeeeeceeeeeeeseeeeereeeeeaeeeaeeeeeeneeeneeeaeees 7 E Microphone keypad E Optional microphones HM 118N TN TAN cee eee 10 2 SETTING A FREQUENCY i ensvnsvnvnnvnnvnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnennen 11 15 E Preparation E Using the tuning dial iarsi sse cece nce nee see neeneeneeneeneeneeneaae E Using the AJ W Keys oo eee ceeeeeceeeeeeseeeeeeeeeeeaeeeaeeseeeeeeeneeeaes E Using the keypad Mi Tuning step selection Mi Lock functions 3 BASIC OPERATION E Receiving 0 E Monitor VTT EE M Squelch attenuator ausrnsvnvvrrvrrvvrvnnvervenvenrvenvenvenvenvenvenvenvenvenvensene E V V U U simultaneous receive Para watch E Sub band mute sub band busy beep ou eects E Transmitting Mi Selecting output POWET ou erre rnnvenenrvenvenverververvenvenvene 20 E One touch PTT function eoreronvnnrrnnvnnnvnrnvrrnrnnvannvarnvnnnvennrernensnene 21 M Audio mute function eee eee eeeeeeeeeeeeteeeeeeeseeeaeteneteneeteteeeeaeenaee 21 REPEATER OPERATION unvnvnnvnnvnnvnnnnnennnnnnnnnnnnnnnnnnennennennennenne 22 28 E Genital ee Eeer 22 E Accessing a repeater M Subaudible tones ccececccceccccesecceneeeeeeeeceeeeeeaeeesseeeseeeesseeeeaees E Offsetfrequenoy geld E Auto repeater USA version only
96. uding the set mode contents such as sub audible tone frequency offset can be programmed into a memory channel Set the desired frequency in the desired band left or right Push the desired band s V MHzeSCAN to select VFO mode Set the frequency using the same band s DIAL Set other data e g tone frequency duplex information etc if required Push the same band s M CALL MW for 1 sec 3 beeps sound e ID indicator and the memory channel number blink MEMORY OPERATION 5 Rotate the DIAL to select the memory channel to be pro grammed e Memory channels not yet programmed are blank Push the M CALL MW for 1 sec to program 3 beeps sound e Memory channel number automatically increases when contin uing to push M CALL MWI after programming vw CONVENIENT Memory programming can be performed in versatile ways e g memory channel to the same or different memory chan nel memory channel to the call channel etc EXAMPLE Programming 145 870 MHz into memory channel 20 blank channel via the controller Beep e Beep Push Rotate for setting frequency etc Push gat for 1 sec LEE LEIT LEIT II oe je Ze tale Ze Beep bal oe Ze TEL Tb TI Beep Tell JI A Ip Ip I Beep 8 ils IO IO D ae gt Push for 1 sec and continue to push I gt 30 DN MEMORY OPERATION Programming a memory channel via the microphone
97. ursor backward Repeat the steps and to set the desired DTMF tone sequence The S RF indicator shows the digit group The indication in creases every 6 digits Push TONE DTMF to exit DTMF memory programming condition e Return to the previous indication as in step EXAMPLE Programming 5428AB453 into DTMF memory channel d4 Push for 1 sec Push amp O Rotate RG D r ar D o ri MAIN 2 el A JFR T Tel IL Ir fe ef gt du d de iLi 8 7 8 Aa N Repeat the previous step until ry Push amp then rotate CH the desired code is entered a any switch except gC and egg HEEN EC On awd HIT OI Tell II di D 48 D DTMF MEMORY ENCODER Programming a DTMF code via microphone 1 EH DTMF Push FUNC then Low 6 DTMF to turn the DTMF encoder ON e d appears in place of the main band s 100 MHz digit oa Push VFO LOCK to exit the programming condition e The cLR A MW key cannot be used to exit If pushed code A is input Reprogram in such a case N Push set B D OFF to enter the DTMF memory programming condition 3 Push A or V to select the desired DTMF memory channel 4 Push the desired digit keys e When the first digit is input previous memory contents are cleared automatically e E stands for and F stands for e Push A V and r
98. used for ring tone when calling etc Push FUNC e The function indicator lights orange Push TONE 1 to transmit a 1750 Hz tone ER call signal for 0 5 sec push and hold TONE 2 O TONE 2 to transmit a 1750 Hz tone call signal for an arbitrary period The function indicator goes out automatically GI TONE 1 N OOO BSS Push ane COOC O0COOC COOC Se hen or Ps 27 4 REPEATER OPERATION USING SET MODE E Offset frequency When communicating through a repeater the transmit fre quency is shifted from the receive frequency by an amount determined by the offset frequency Independent offset frequencies can be set for each operating frequency Push MAIN BAND to select the desired band left or right as the main band e Push MAIN BAND for 1 sec then rotate the DIAL to select the desired frequency band if necessary Select the desired mode channel you wish to set the offset frequency to such as VFO mode or memory call channel e The offset frequency can be independently programmed into each mode or channel Q Push SET exg to enter set mode Push SET ex3 or LOWePRIO until DUP and offset fre quency appear Ain PS Fu RE Ee RETI LOWePRIO SETE a DUP and offset frequency appear Rotate the main band s DIAL to set the desired offset fre quency Push TONE DTMF
99. wer supply connection Use a 13 8 V DC power supply with at least 15 A capacity Make sure the ground terminal of the DC power supply is grounded CONNECTING TO A DC POWER SUPPLY O 3 3 D o O E H H H i E o 3 DC power supply 13 8 V Fuses 20 A See p 74 for fuse replacement VII QUICK REFERENCE GUIDE Antenna installation Antenna location To obtain maximum performance from the transceiver select a high quality antenna and mount it in a good location non radial antenna should be used when using a magnetic mount Trunk mount Roof mount antenna antenna Drill a hole or use a magnetic mount Gutter mount antenna gt To antenna Antenna connector The antenna uses a PL 259 connector e PL 259 CONNECTOR 1 30 mm Slide the coupling ring ag down Strip the cable pa jacket and soft solder Coupling ring 10 mm soft solder 10 mm Soft e Ka peson Strip the cable as shown at left Soft solder the cen male ter conductor 1 2 mm solder solder 3 Slide the connector body BR 1 on and solder it Screw the coupling ring ST bb onto the connector body 10 mm in G NOTE There are many publications covering proper an Z tennas and their installation Check with your local dealer Z for more information and recommendations E Your first contact Now that you have your IC 2720H installed in your car or shack you are probab

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