Icom IC-2725E Instruction Manual
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Icom IC-2725E Instruction Manual

Dual band fm transceiver
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INSTRUCTION MANUAL
DUAL BAND FM TRANSCEIVER
i2725E

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Summary of Contents for Icom IC-2725E

  • Page 1 INSTRUCTION MANUAL DUAL BAND FM TRANSCEIVER i2725E...

  • Page 2: Explicit Definitions

    IC-2725E. We want to take a couple of moments of your time to thank you for making your IC-2725E your radio of choice, and hope you agree with Icom’s philosophy of “technology first.” Many EXPLICIT DEFINITIONS hours of research and development went into the design of your IC-2725E.
  • Page 3 Detailed installation notes for Icom mobile transceivers to NEVER place the transceiver where normal operation of the vehi- be fitted into vehicles are available. Contact your Icom cle may be hindered or where it could cause bodily injury. dealer or distributor.

  • Page 4: Table Of Contents

    SUPPLIED ACCESSORIES TABLE OF CONTENTS FOREWORD ................... i IMPORTANT .................... i EXPLICIT DEFINITIONS ................. i PRECAUTION ..................ii SUPPLIED ACCESSORIES ..............iii TABLE OF CONTENTS ................. iii QUICK REFERENCE GUIDE ............I–XII I Installation ..................I I Your first contact ................. VIII I Repeater operation ................
  • Page 5 I Selecting output power ..............20 9 DTMF MEMORY ENCODER ............. 47–50 I One-touch PTT function ............... 21 I Programming a DTMF code ............47 I Audio mute function ..............21 I Transmitting a DTMF code ............49 I DTMF speed ................50 4 REPEATER OPERATION ............

  • Page 6: Quick Reference Guide

    QUICK REFERENCE GUIDE I Installation D Installation methods • Single body installation • Remote installation Front panel Transceiver Main body • The supplied MB-85 is used to mount • Optional MB-84 and OPC- COMBINATION BRACKET REMOTE CONTROLLER BRACKET the controller to the main unit. (Use the supplied 20 cm sep- 1155 can be used for installation.

  • Page 7: Using The Mounting Bracket

    @@ QQ @ Q @ Q Flat washer Mounting nut Main unit 25˚ Controller Main unit Main unit IMPORTANT! Detailed installation notes for Icom mobile transceivers to be fitted into vehicles are available. Contact your Icom dealer or distributor.
  • Page 8 When using the supplied MB-85 ( ), you COMBINATION BRACKET can install the control head of the IC-2725E in one of 2 meth- ods. A 20 cm remote control cable is supplied for connection, and connect the cable before attaching the bracket to the main unit is recommended.
  • Page 9 QUICK REFERENCE GUIDE D Optional MB-84 installation The optional MB-84 is used for REMOTE CONTROLLER BRACKET separate installation. wAttach the remote controller to the MB-84 and tighten the q Drill 2 holes where the bracket is to be installed. • Approx. 4 mm when using nuts; approx. 1–2 mm when using controller using with the supplied screws.

  • Page 10: Microphone Connection

    QUICK REFERENCE GUIDE D Separation cable connection D Microphone connection A separation cable (20 cm) is supplied with the IC-2725E. Two microphone connectors are available for the IC-2725E— one is on the controller side panel, and another is on the main Connect the controller and the main unit using with the sepa- unit front panel.

  • Page 11: Battery Connection

    • CONNECTING TO A DC POWER SUPPLY Attach a rubber grommet when passing the DC power cable through a metal plate to prevent a short circuit. • CONNECTING TO A DC POWER SOURCE IC-2725E Grommet IC-2725E DC power supply 13.8 V −...

  • Page 12: Antenna Installation

    QUICK REFERENCE GUIDE D Antenna installation • Antenna connector The antenna uses a PL-259 connector. • Antenna location To obtain maximum performance from the transceiver, select • PL-259 CONNECTOR a high-quality antenna and mount it in a good location. A non- q Slide the coupling ring 30 mm radial antenna should be used when using a magnetic mount.

  • Page 13: I Your First Contact

    2. Selecting the main band The IC-2725E displays 2 frequencies on left and right bands Now that you have your IC-2725E installed in your car or simultaneously. However, transmission, some switches and shack, you are probably excited to get on the air. We would...
  • Page 14 3. Selecting the operating frequency band 4. Tune the frequency The IC-2725E has 2 m and 70 cm bands for each left and The tuning dial will allow you to dial in the frequency you want right band. The operating band can be exchanged between to operate.

  • Page 15: I Repeater Operation

    QUICK REFERENCE GUIDE I Repeater operation 1. Setting duplex Using the HM-133 Plus or minus duplex selection and the repeater tone setting Push desired band’s [MAIN•BAND] to select the main band. can be made easily via HM-133. Push [DUP•MONI] once or twice to select minus duplex or Push [ 7(TONE)] for minus duplex;...

  • Page 16: I Programming Memory Channels

    QUICK REFERENCE GUIDE I Programming memory channels The IC-2725E has a total of 212 memory channels (including 3. Writing a memory channel 10 scan edges and 2 call channels) for storing often used op- Push and hold the [M/CALL•MW] for 1 sec. to program.
  • Page 17 QUICK REFERENCE GUIDE Using the HM-133 q In VFO mode, set the desired operating frequency, includ- ing offset direction, tone settings, etc. ➥ Push [VFO/LOCK] to select VFO. ➥ Push [ C(T-OFF)] first, then enter the desired oper- ating frequency via the keypad. •...

  • Page 18: Panel Description

    PANEL DESCRIPTION I Front panel— controller Function display (pgs. 3, 4) MAIN MAIN BAND BAND T SQL DTCS T SQL DTCS MAIN MAIN V/MHz V/MHz SCAN SCAN M/CALL LOWMID LOWMID M/CALL BUSY BUSY SKIP SKIP i2725 DUAL BAND FM TRANSCEIVER DIAL DIAL TONE...
  • Page 19 PANEL DESCRIPTION Left band Right band MAIN MAIN BAND BAND V/MHz V/MHz SCAN SCAN M/CALL M/CALL i2725 DUAL BAND FM TRANSCEIVER DIAL DIAL TONE MONI DTMF PRIO *The same controls for both the left and right bands are arranged in symmetry. y MAIN•BAND SWITCH [MAIN•BAND] o VOLUME CONTROL [VOL] (p.

  • Page 20: I Function Display

    PANEL DESCRIPTION I Function display Left band Right band T SQL DTCS T SQL DTCS MAIN MAIN BUSY LOWMID BUSY LOWMID SKIP SKIP *The same indications for both the left and right bands are arranged. q MAIN INDICATOR (p. 11) r TONE INDICATORS ➥...
  • Page 21 PANEL DESCRIPTION t AM INDICATOR (p. 63) !2 BUSY INDICATOR ➥ Appears when a signal is being received or the squelch Appears when AM mode is selected. is open. (p. 16) y FREQUENCY READOUT ➥ Blinks while the monitor function is activated. (p. 16) Shows the operating frequency, set mode contents, etc.

  • Page 22: I Main Unit

    PANEL DESCRIPTION I Main unit w MICROPHONE CONNECTOR [MIC] Connects the supplied or an optional microphone. q +8 V DC output (Max. 10 mA) w Channel up/down e 8 V control IN r PTT t GND (microphone ground) y MIC (microphone input) u GND i Data IN e CONTROLLER CONNECTOR [CONTROLLER] (p.
  • Page 23 PANEL DESCRIPTION y EXTERNAL SPEAKER JACK 1 [SP-1] D DATA JACK PIN ASSIGNMENT Connects an 8 Ω 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. u EXTERNAL SPEAKER JACK 2 [SP-2] Connects an 8 Ω...

  • Page 24: I Microphone (Hm-133)

    PANEL DESCRIPTION I Microphone (HM-133*) r 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. t KEYPAD (pgs. 8, 9) y FUNCTION INDICATOR ➥...

  • Page 25: I Microphone Keypad

    PANEL DESCRIPTION I Microphone keypad FUNCTION SECONDARY FUNCTION ( +key) OTHER FUNCTIONS Switches between opening and closing the In VFO mode enters operating band select- squelch. (p. 16) ing condition. (p. 12) In memory mode enters bank selecting condition. (p. 34) Starts and stops scanning.
  • Page 26 PANEL DESCRIPTION FUNCTION SECONDARY FUNCTION ( +key) OTHER FUNCTIONS ➥ Cancels frequency entry. ➥ Selects a memory channel for program- (p. 13) ➥ Cancels the scan or priority watch. ming. (p. 30) ➥ Advances the memory channel number (pgs. 40, 46) ➥...

  • Page 27: I Optional Microphones (Hm-118N/Tn)

    PANEL DESCRIPTION I Optional Microphones (HM-118N/TN) q PTT SWITCH • HM-118N ➥ Push and hold to transmit; release to receive. w UP/DOWN SWITCHES [UP]/[DN] ➥ Push either switch to change operating frequency, memory channel, set mode setting, etc. ➥ Push either switch for 1 sec. to start scanning. e UP/DN LOCK SWITCH Slide to toggle [UP]/[DN] switches function ON and OFF.

  • Page 28: Setting A Frequency

    ➥ Push [PWR] for 1 sec. to turn power ON and OFF. [MAIN•BAND] for 1 sec. [DIAL] D MAIN band The IC-2725E can receive 2 m and 70 cm band signals si- multaneously. To activate all functions access or to change MAIN MAIN frequency via the microphone, you must designate one band as the main band.
  • Page 29 SETTING A FREQUENCY D VFO and memory modes z Push [BAND] to select main band. The transceiver has 2 basic operating modes: VFO mode and BANK x Push [FUNC], the push [ 1(MONI)] to se- memory mode. Select VFO mode first to set an operating fre- BANK lect frequency band selecting condition.

  • Page 30: I Using The Tuning Dial

    SETTING A FREQUENCY I Using the tuning dial I Using the keypad The frequency can be directly set via numeral keys on the mi- q Rotate the desired band’s [DIAL] to set the frequency. crophone. • If VFO mode is not selected, push the same band’s [V/MHz•SCAN] to select VFO mode.

  • Page 31: I Tuning Step Selection

    SETTING A FREQUENCY I Tuning step selection rRotate the same band’s [DIAL] to select the desired tuning Tuning steps are the minimum frequency change increments when you rotate [DIAL] or push [Y]/[Z] on the microphone. step. tPush [TONE•DTMF] to exit set mode. Independent tuning step for the left and right, as well as each frequency bands can be set for individual tuning convenience.

  • Page 32: I Lock Functions

    SETTING A FREQUENCY I Lock functions D Microphone keypad lock To prevent accidental frequency changes and unnecessary function access, use the lock function. The transceiver has 2 This function locks the microphone keypad. different lock functions. ➥ Push [FUNC] then [ D(16KEY-L)] to D Frequency lock 16KEY-L...

  • Page 33: Basic Operation

    BASIC OPERATION I Receiving I Monitor function q Set the audio level for the main band. This function is used to listen to weak signals without disturb- ➥ Push the desired band’s [MAIN•BAND]. ing the squelch setting. ➥ Push [DUP•MONI] for 1 sec. to open the squelch. Push [DUP•MONI] ➥...

  • Page 34: I Squelch Attenuator

    BASIC OPERATION I Squelch attenuator D Squelch attenuator setting INITIAL SET MODE USING The transceiver has an RF attenuator related to the squelch q Turn the transceiver power OFF. level setting. Approx. 10 dB attenuation is obtained at maxi- wWhile pushing [SET• mum setting.

  • Page 35: I V/V, U/U Simultaneous Receive (Para-Watch)

    I V/V, U/U simultaneous receive (Para-watch) qPush either the left or right band’s [MAIN•BAND] for 1 sec. The IC-2725E can simultaneously receive two signals on the same band, such as 144 MHz band, using the para-watch to select the frequency band selecting condition.

  • Page 36: I Sub Band Mute/Sub Band Busy Beep

    BASIC OPERATION I Sub band mute/sub band busy beep INITIAL SET MODE USING e Rotate the left band’s [DIAL] to select the condition. The sub band mute function automatically cuts out sub band audio signals when both main and sub band signals are re- DISPLAY SUB BAND MUTE BUSY BEEP...

  • Page 37: I Transmitting

    • The output power can be changed via the microphone IMPORTANT! (for 50/35 W transmission): during receive only. The IC-2725E is equipped with protection circuit to protect the power amplifier circuit from high SWR (Standing Wave and temperature. When a high SWR antenna or no...

  • Page 38: I One-Touch Ptt Function

    BASIC OPERATION I One-touch PTT function I Audio mute function The PTT switch can be operated as a one-touch PTT switch This function temporarily mutes the audio without disturbing (each push toggles between transmit/receive). Using this the volume setting. function you can transmit without pushing and holding the ➥...

  • Page 39: Repeater Operation

    REPEATER OPERATION I General • Repeater operation flow chart Repeaters allow you to extend the operational range of your Setp 1: radio because a repeater has much higher output power than Set the desired band to operate the repeater. the typical transceiver. Normally, a repeater has indipendent frequencies for each re- Setp 2: ceiver and transmitter.

  • Page 40: I Accessing A Repeater

    REPEATER OPERATION I Accessing a repeater q Set the receive frequency (repeater output frequency) on r Push and hold [PTT] to transmit. • The displayed frequency automatically changes to the transmit the main band. (pgs. 11–13) frequency (repeater input frequency). Push [DUP•MONI] one or two times, to select minus du- •...
  • Page 41 REPEATER OPERATION z Set the receive frequency (repeater output fre- m Push [ 9(TSQL)] to return to simplex opera- SIMP DUP– SIMP quency) on the main band. (pgs. 11–13) tion. x Push [ • “DUP” or “DUP–” indicator disappears. – 7(TONE)] to select minus duplex; , To turn OFF the subaudible tone encoder, push push [ + 8(TSQLS)] to select plus duplex.

  • Page 42: I Subaudible Tones

    REPEATER OPERATION I Subaudible tones z Set the main band, mode/channel you wish to SET MODE USING set the subaudible tones to, such as VFO mode (Encoder function) or memory/call channel. • The subaudible tone frequency is independently pro- D Subaudible tones grammed into each mode or channel.
  • Page 43 REPEATER OPERATION D DTMF tones D 1750 Hz tone ➥ Push [DTMF-S], then push the keys of the de- The microphone has 1750 Hz tone capability, used for ring DTMF-S sired DTMF digits. tone when calling, etc. • The function indicator lights green. z Push [FUNC].

  • Page 44: I Offset Frequency

    REPEATER OPERATION I Offset frequency SET MODE USING z Push [BAND] to select the desired band (left or When communicating through a repeater, the transmit fre- quency is shifted from the receive frequency by an amount right) as the main band. determined by the offset frequency.

  • Page 45: Memory Operation

    MEMORY OPERATION I General description D Using the [Y]/[Z] keys The transceiver has 212 memory channels including 10 scan edge memory channels (5 pairs), and 2 call channels. Each of z Push [BAND] to select the desired band as these channels can be individually programmed with operating MR/CALL the main band.

  • Page 46: I Programming A Memory Channel

    MEMORY OPERATION I Programming a memory channel eRotate the [DIAL] to select the memory channel to be pro- VFO settings, including the set mode contents such as sub- audible tone frequency, offset, can be programmed into a grammed. memory channel. •...
  • Page 47 MEMORY OPERATION D Programming a memory channel via the microphone The microphone can also be used to program mem- ory channels. z Set the desired frequency in VFO mode. v Push [FUNC] then [ A(MW)] for 1 sec. to program. ➥...

  • Page 48: I Transferring Memory Contents

    MEMORY OPERATION I 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. z Push [BAND] to select the desired band as D Memory/call➪VFO MR/CALL...
  • Page 49 MEMORY OPERATION D Memory/call➪call/memory z Select the memory/call channel to be trans- MR/CALL ferred. q Select the memory/call channel to be transferred. ➥ Push [MR/CALL] to select memory mode, ➥ Push the desired band’s [M/CALL•MW] several times to then select the desired memory channel select memory mode or call channel, then rotate the via [Y]/[Z] or keypad.

  • Page 50: I Memory Clearing

    MEMORY OPERATION I Memory clearing r Push the same band’s [M/CALL•MW] momentarily, then Contents of programmed memories can be cleared (blanked), if desired. push the [M/CALL•MW] again for 1 sec. This operation must be performed within 1.5 sec. q Push [V/MHz•SCAN] to select VFO mode in the desired •...

  • Page 51: I Memory Bank Selection

    MEMORY OPERATION I Memory bank selection The IC-2725E has a total of 10 banks . Regular mem- (A to J) z Push [MR/CALL] to select memory mode, if de- ory channels, 000 to 199, are assigned into the desired bank BANK sired.

  • Page 52: I Memory Bank Setting

    MEMORY OPERATION I Memory bank setting q Push the desired band’s [M/CALL•MW] several times to y Push the [MAIN•BAND] for 1 sec. then push the select memory mode, then select the desired memory [MAIN•BAND] momentarily again to return to regular mem- channel via the same band’s [DIAL].

  • Page 53: I Transferring Bank Contents

    MEMORY OPERATION I Transferring bank contents r Push the [M/CALL•MW] again. Contents of programmed memory banks can be cleared or • Bank initial or “– –” indication stops blinking. transferred to another bank. t Push the [MAIN•BAND] for 1 sec. then push the INFORMATION: Even if the memory bank contents are [MAIN•BAND] momentarily again to return to regular mem- cleared, the memory channel contents still remain pro-...

  • Page 54: Call Channel Operation

    CALL CHANNEL OPERATION I Call channel selection I Call channel transferring q Push the desired band’s [M/CALL•MW] several times then Call channel is pre-programmed memory channel that can be accessed by simply pushing call channel button. rotate the same band’s [DIAL] to select the desired call channel.

  • Page 55: I Programming A Call Channel

    CALL CHANNEL OPERATION I Programming a call channel r Push the [M/CALL•MW] for 1 sec. to program. Operating frequency, duplex information, subaudible tone in- formation (tone encoder or tone squelch ON/OFF and its fre- • 3 beeps sound and the unit returns to VFO mode automatically. quency) can be programmed into the call channel.

  • Page 56: Scan Operation

    SCAN OPERATION I Scan types Scanning searches for signals automatically and makes it There are 3 scan types and 4 resume conditions to suit your easier to locate new stations for contact or listening purposes. operating needs. BAND SCAN Repeatedly scans all frequen- PROGRAMMED SCAN Repeatedly scans between (p.

  • Page 57: I Scan Start/Stop

    SCAN OPERATION I Scan start/stop D Preparation z Push [VFO/LOCK] to select VFO mode for Scan resume condition (p. 44); program the scan edges SCAN full/programmed scan; push [MR/CALL] to select (pgs. 41, 42); program 2 or more memory channels (pgs. 29, memory mode for memory scan, in the main 30);...

  • Page 58: I Scan Edges Programming

    SCAN OPERATION I Scan edges programming r Push the [M/CALL•MW] for 1 sec. to program. Scan edges can be programmed in the same manner as • 3 beeps sound and VFO is automatically selected. memory channels. Scan edges are programmed into scan •...
  • Page 59 SCAN OPERATION D Programming scan edges via microphone z Set the desired frequency in VFO mode. b To program a frequency for the other scan edge channels, ➥ Push [VFO/LOCK] to select VFO mode. repeat steps z to v. ➥ Set the frequency via the keypad or [Y]/[Z]. x Push [FUNC] then [ A(MW)] momentarily.

  • Page 60: I Skip Channel Setting

    SCAN OPERATION I Skip channel setting SET MODE USING z Select a memory channel. The memory skip function speeds up scanning by checking ➥ Select memory mode by pushing [MR/CALL]. only those memory channels not set as skip channels. Set ➥...

  • Page 61: I Scan Resume Condition

    SCAN OPERATION I Scan resume condition SET MODE USING z Push [BAND] to select the desired band (left or The scan resume condition can be selected as timer or pause scan. The selected resume condition is also used for priority right) as the main band.

  • Page 62: Priority Watch

    PRIORITY WATCH I Priority watch types Priority watch checks for signals on a VFO frequency every MEMORY CHANNEL WATCH 5 sec. while operating in memory mode. The transceiver has While operating on a VFO fre- 5 sec. 3 priority watch types to suit your needs. You can also trans- quency, priority watch checks for 50 msec.

  • Page 63: I Priority Watch Operation

    PRIORITY WATCH I Priority watch operation q Select VFO mode; then, set an operating frequency in the z Select VFO mode; then, set the desired fre- PRIO desired band (left or right). quency. w Set the watching channel(s). x Set the watching channel(s). For memory channel watch: For memory channel watch: Select the desired memory channel.

  • Page 64: Dtmf Memory Encoder

    DTMF MEMORY ENCODER I Programming a DTMF code e Rotate the main band’s [DIAL] to select the desired DTMF memory channel. DTMF tones are used for autopatching, controlling other r Push [SET• equipment, etc. The transceiver has 14 DTMF memory chan- •...
  • Page 65 DTMF MEMORY ENCODER D Programming a DTMF code— via microphone b Push [VFO/LOCK] to exit the programming condition. z Push [FUNC] then [ 6(DTMF)] to turn the DTMF • The [ A(MW)] key cannot be used to exit. If pushed, code “A” DTMF encoder ON.

  • Page 66: I Transmitting A Dtmf Code

    DTMF MEMORY ENCODER I Transmitting a DTMF code D Automatic transmission (DTMF memory) D Transmitting a DTMF memory directly qPush [TONE•DTMF] for 1 sec. to turn the DTMF memory z Push [FUNC] then [ 6(DTMF)] to turn the DTMF-S encoder ON. DTMF memory encoder ON.

  • Page 67: I Dtmf Speed

    DTMF MEMORY ENCODER I DTMF speed D Manual transmission INITIAL SET MODE USING z Deactivate the DTMF memory encoder by The rate at which DTMF memories send individual DTMF DTMF-S pushing [FUNC] then [ B(D-OFF)]. characters can be set to accommodate operating needs. x Push [DTMF-S] to turn the DTMF direct selec- tion ON.

  • Page 68: Pocket Beep And Tone Squelch

    POCKET BEEP AND TONE SQUELCH I Pocket beep operation y Push [TONE•DTMF] to exit set mode. u Push [TONE•DTMF] several times until “T SQLS” or This function uses subaudible tones for calling and can be “SDTCS” are displayed to turn ON the pocket beep with used as a “common pager”...
  • Page 69 POCKET BEEP AND TONE SQUELCH z Set the operating frequency. D Available tone frequency list TSQLS x Program the CTCSS tone frequency or DTCS 67.0 79.7 94.8 110.9 131.8 156.7 171.3 186.2 203.5 229.1 code in set mode. 69.3 82.5 97.4 114.8 136.5...

  • Page 70: I Tone/Dtcs Squelch Operation

    POCKET BEEP AND TONE SQUELCH I Tone/DTCS squelch operation z Set the operating frequency. The tone or DTCS squelch opens only when receiving a sig- TSQL x Program the CTCSS tone frequency or DTCS nal with the same pre-programmed subaudible tone or DTCS code, respectively.

  • Page 71: I Tone Scan

    POCKET BEEP AND TONE SQUELCH I Tone scan r When the CTCSS tone frequency or 3-digit DTCS code is By monitoring a signal that is being operated with pocket beep, tone or DTCS squelch function, you can determine the matched, the squelch opens and the tone frequency is tone frequency or DTCS code necessary to open a squelch.

  • Page 72: Other Functions

    OTHER FUNCTIONS I Set mode • Set mode operation z Push [BAND] to select the main band. q Push the desired band’s [MAIN•BAND] to select the main x Push [ B(D-OFF)] to enter set mode. band. c Push [ B(D-OFF)] or [ C(T-OFF)] to select w Push [SET•...
  • Page 73 OTHER FUNCTIONS D D Display dimmer D D Tone squelch tone Adjust to suit lighting conditions. Sets subaudible tone frequency (both encoder and decoder) The levels 1 (dark) to 4 (bright: default) are available. for tone squelch operation. Total of 50 tone frequencies (67.0–254.1 Hz) are available.
  • Page 74 OTHER FUNCTIONS D D DTCS polarity D D Scan resume timer Sets DTCS polarities for transmission and reception from Selects scan resume timer from SCT-15 (default), SCT-10, “nn,” “nr,” “rn” and “rr.” (default: nn) SCT-5 and SCP-2. • SCT-15/10/5 : Scan pauses for 15/10/5 sec., then re- DTCS DTCS MAIN...
  • Page 75 OTHER FUNCTIONS D D Wide/Narrow setting D D 1st Lo frequency selection (Left band only) Sets both the transmission and reception passband width Selects the 1st Lo (Local Oscillator) frequency from normal from wide and narrow. (n) and reverse (r). When narrow is set, the transmission deviation and reception By changing local oscillator frequency, the transceiver may passband width become half of the wide setting (approx.).

  • Page 76: I Initial Set Mode

    OTHER FUNCTIONS I Initial set mode POWER ON D D Entering initial set mode The initial set mode is accessed at power ON and al- q While pushing [SET• lows you to set seldom-changed settings. In this way, ], push [PWR] for 1 sec. to enter initial set mode.
  • Page 77 OTHER FUNCTIONS D D Key-touch beep D D Auto power OFF The key-touch beep can be turned OFF for silent operation. The transceiver can be set to automatically turn OFF after a (default: ON) specified period with a beep when no key operations are per- formed.
  • Page 78 OTHER FUNCTIONS D D Packet operation band D D Squelch attenuator Selects the packet operation band from auto, right and left. Turns the squelch attenuator function ON and OFF. • Auto (At) : The main band is used for packet op- •...
  • Page 79 OTHER FUNCTIONS D D DTMF speed The rate at which DTMF memories send individual DTMF characters can be set to accommodate operating needs. • 1 : 100 msec. interval; 5.0 cps speed (default) • 2 : 200 msec. interval; 2.5 cps speed •...

  • Page 80: I Am/Fm Narrow Mode

    I AM/FM narrow mode [ z Push [BAND] to select the desired band (left or The IC-2725E has AM mode reception for both the left and right) as the main band. right bands, and FM narrow mode is available for the left •...

  • Page 81: I Microphone Keys

    OTHER FUNCTIONS I Microphone keys D D [F-1]/[F-2] keys on HM-133 The following conditions in the main band or both left and The supplied HM-133’s (optional for some versions) [F-1] and right bands can be memorized into [F-1] and [F-2] keys, in- [F-2] keys memorize the transceiver conditions.

  • Page 82: I Partial Reset

    OTHER FUNCTIONS I Partial reset I ALL reset POWER ON POWER ON If you want to initialize the operating conditions (VFO fre- The function display may occasionally display erroneous in- quency, VFO settings, set mode contents) without clearing formation (e.g. when first applying power). This may be the memory contents, a partial resetting function is available caused externally by static electricity or by other factors.

  • Page 83: I Data Cloning

    OTHER FUNCTIONS I Data cloning POWER ON Cloning allows you to quickly and easily transfer the pro- w While pushing left band’s [M/CALL•MW], turn power ON to grammed contents from one transceiver to another; or , data enter cloning mode (master transceiver only— power ON from a personal computer to a transceiver using the optional only for sub-transceiver).

  • Page 84: I Packet Operation

    OTHER FUNCTIONS I Packet operation D Cloning using a personal computer Data can be cloned to and from a personal computer (Mi- D Data speed crosoft ® Windows ® 98/2000/Me/XP) using the optional CS- For packet operation, the transceiver can be set to one of two 2720 and the optional cloning cable CLONING SOFTWARE...
  • Page 85 OTHER FUNCTIONS D 1200 bps packet operation q Connect the transceiver and a TNC as illustrated below. • Read the instructions supplied with your TNC carefully before attempting packet operation with the transceiver. TNC side • Pin t AF OUT is for 1200 bps operation only. This pin q DATA IN TX AUDIO cannot be used for 9600 bps operation.
  • Page 86 OTHER FUNCTIONS D 9600 bps high speed packet operation • When using the PTT P terminal for packet operation, no The transceiver supports 2 modes of 9600 bps packet opera- voice signals are transmitted from the microphone. tion: G3RUH and GMSK. •...
  • Page 87 OTHER FUNCTIONS D Adjusting the transmit signal output from D Packet operation band selection Both bands, or either the left or right band only, can be spec- the TNC ified for packet operation to suit your preference. When setting data transmission speed to 9600 bps, the data signal coming from the TNC is applied exclusively to the in- q While pushing [SET•...

  • Page 88: Maintenance

    MAINTENANCE I Troubleshooting If your transceiver seems to be malfunctioning, please check 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. • Check the connector pins. —...

  • Page 89: I Fuse Replacement

    MAINTENANCE 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.

  • Page 90: Specifications And Options

    SPECIFICATIONS AND OPTIONS I Specifications D D TRANSMITTER • Modulation system : Variable reactance frequency mod- D D GENERAL ulation • Output power : VHF 50/15/5 W • Frequency coverage (approx.) 35/15/5 W Europe 144–146 MHz, 430–440 MHz (approx.) • Max. frequency deviation : ±5.0 kHz Italy 144–146 MHz, 430–434 MHz,...

  • Page 91: I Options

    SPECIFICATIONS AND OPTIONS I Options HM-133 REMOTE CONTROL MICROPHONE OPC-441 SPEAKER EXTENSION CABLE Wired remote control microphone with key backlight. Same as that Cable length: 5.0 m supplied with the transceiver. SP-7/SP-10 EXTERNAL SPEAKERS HM-118TN DTMF MICROPHONE SP-7: For base station use. Cable length: 1.0 m HM-118N SP-10: For all-round mobile operation.

  • Page 92: Mode Arrangement

    MODE ARRANGEMENT INITIAL SET MODE VFO mode (p. 12) MAIN MAIN MAIN MAIN Key-touch beep (p. 60) Time-out timer (p. 60) PRIO V/MHz V/MHz M/CALL SCAN SCAN V/MHz SCAN MAIN MAIN MAIN MAIN M/CALL MEMORY MODE (p. 28) CALL CHANNEL (p. 37) Sub band mute (p.
  • Page 93 MODE ARRANGEMENT MAIN MAIN MAIN MAIN Auto power off (p. 60) Cooling fan (p. 60) Data speed (p. 60) Packet operation band (p. 61) MAIN MAIN MAIN MAIN Active band (p. 61) Squelch attenuator (p. 61) Microphone sensitivity (p. 61) Squelch delay (p.
  • Page 94 DECLARATION OF CONFORMITY We Icom Inc. Japan 1-1-32, Kamiminami, Hirano-ku Osaka 547-0003, Japan Declare on our sole responsibility that this equipment complies with the Düsseldorf 20 Sep. 2002 essential requirements of the Radio and Telecommunications Terminal Place and date of issue Equipment Directive, 1999/5/EC, and that any applicable Essential Test Suite measurements have been performed.
  • Page 96 I POR I DEN I GBR I BEL I FIN I IRL I LUX I GRE I SUI #03 Italy <Intended Country of Use> I ITA A-6123D-1EU-q Printed in Japan 1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan 2002 Icom Inc. ©...

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