User manual ICOM IC-M710RT - INSTRUCTION MANUAL

INSTRUCTION MANUAL MF/HF MARINE TRANSCEIVER iM710RT IMPORTANT READ THIS INSTRUCTION MANUAL CAREFULLY before attempting to operate the transceiver. SAVE THIS INSTRUCTION MANUAL--This manual contains important safety and operating instructions for the IC-M710RT MF/HF MARINE TRANSCEIVER. EXPLICIT DEFINITIONS The explicit definitions described below apply to this instruction manual. DEFINITION Personal injury, fire hazard or electric RWARNING shock may occur. CAUTION NOTE Equipment damage may occur. If disregarded, inconvenience only. No risk of personal injury, fire or electric shock. WORD  NOTE: The IC-M710RTGMDSS version has a high-stability crystal oscillator unit. This unit draws a slight current even when power to the transceiver is OFF. To prevent battery exhaustion when docking your vessel for extended periods, unplug the DC cable from the DC power receptacle. PRECAUTIONS RWARNING! NEVER connect the transceiver to an AC outlet directly. This may pose a fire hazard or result in an electric shock. DO NOT use chemical agents such as benzene or alcohol when cleaning, as they can damage the transceiver's surfaces. In maritime mobile operation, KEEP the transceiver and microphone as far away as possible (at least 1 m) from the magnetic navigation compass to prevent erroneous indications. USE an Icom microphone and/or handset only (supplied or optional). Other brands may have different pin assignments and may damage the transceiver. AVOID using or placing the transceiver in areas with temperatures below ­20°C (­4°F) or above +60°C (+140°F). AVOID connecting the transceiver to a power source using reverse polarity. This connection will not only blow fuses but may also damage the transceiver. AVOID placing the transceiver in excessively dusty environments or in direct sunlight. AVOID placing the transceiver against walls or putting anything on top of the transceiver. This will obstruct heat dissipation. RWARNING! NEVER mount the transceiver overhead. The weight of the transceiver is approximately 8 kg., but its apparent weight will increase several fold due to wave shocks and vibration. The transceiver must be mounted on a flat hard surface only. NEVER connect a power source of more than 16 V DC such as a 24 volt battery. This connection will ruin the transceiver. NEVER place the transceiver where normal operation of the ship or vehicle may be hindered or where it could cause bodily injury. Place unit in a secure place to avoid inadvertent use by children. NEVER expose the transceiver to rain, snow or any liquids. There are two types of grounding systems available for the IC-M710RT--Negative Ground and Floating Ground--NEVER install the negative ground type to a plus-grounding ship. Such a connection might blow fuses and is not usable. ii IN CASE OF EMERGENCY (for maritime operation) If your vessel requires assistance, contact other vessels and the Coast Guard by sending a distress call on 2182 kHz. Or, transmit your distress call using digital selective calling on 2187.5 kHz. USING 2182 kHz WITH VOICE Push [2182kHz] to select the emergency frequency. USING DIGITAL SELECTIVE CALLING (Only for GMDSS versions with an optional GM110DSC DSC TERMINAL UNIT) Push [ALARM] and [TX FREQ] for 1 sec. to transmit a 2-tone alarm signal for at least 30 sec. · The transceiver automatically stops the alarm after 50 sec. When immediate help is needed Push and hold [EMERGENCY] on the GM110DSC for 5 sec., until the short beeps become one long beep, to send the distress call. Push [ALARM] to turn the alarm transmission off, then push and hold the PTT switch on the microphone and send the following information: 1. "MAYDAY, MAYDAY, MAYDAY." 2. "THIS IS . . . . . . . . . . . " (name of vessel) 3. "LOCATED AT . . . . . . . " (vessel's position) 4. Give the reason for the distress call. 5. Explain what assistance you need. 6. Give additional information: · Vessel type · Vessel length · Vessel color · Number of people onboard. After 2182 kHz is automatically selected, transmit the appropriate information as at left using voice. When a potential problem exists Push [SEL] on the GM-110DSC, then select "all ships call" with [ENT] and the DATA SELECTOR. Push and hold [CALL] on the GM-110DSC for 5 sec., until short beeps become one long beep, to use the "all ships call" function. After the pre-selected frequency is selected, transmit the appropriate information using voice. · DSC equipped ships may monitor your transmission. VERSIONS The following versions are available for the IC-M710RT: Version Ground type Negative ground and Floating ground Negative ground and Floating ground Negative ground only Description Corrosion-resistant exterior. High stability crystal and FSK narrow filter built-in. Optional DSC terminal unit can be connected. 2182 kHz 2-tone alarm is built-in. 2182 kHz 2-tone alarm is built-in. FSK/CW narrow filter is optional. All SSB/FSK ITU channels available. 2182 kHz 2-tone alarm is optional. FSK/CW narrow filter is optional. ITU channels are optional. GMDSS Marine General iii TABLE OF CONTENTS IMPORTANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii EXPLICIT DEFINITIONS . . . . . . . . . . . . . . . . . . . . . ii PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii IN CASE OF EMERGENCY . . . . . . . . . . . . . . . . . . iii VERSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . iv 1 OPERATING RULES AND GUIDELINES . . . . . . 1 2 PANEL DESCRIPTION . . . . . . . . . . . . . . . . . . 2­5 I Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 I Main unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 D HM-120 microphone keys . . . . . . . . . . . . . . . . . . . 4 6 SET MODE . . . . . . . . . . . . . . . . . . . . . . . . . . 12­15 I Set mode operation . . . . . . . . . . . . . . . . . . . . 12 I Set mode contents . . . . . . . . . . . . . . . . . . . . . 12 7 CONNECTIONS AND INSTALLATION . . . . 16­25 I Supplied accessories . . . . . . . . . . . . . . . . . . . 16 I Attaching 1 remote controller . . . . . . . . . . . . . 16 I Attaching 2 remote controllers . . . . . . . . . . . . 17 D Set ID number . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 D Intercom operation . . . . . . . . . . . . . . . . . . . . . . . . 17 I Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 SELECTING A CHANNEL/FREQUENCY . . . . 6­8 I Selecting a channel . . . . . . . . . . . . . . . . . . . . . 6 D Using the channel selector . . . . . . . . . . . . . . . . . . 6 D Using the keypad . . . . . . . . . . . . . . . . . . . . . . . . . . 7 D Scan functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 I Attaching 2 remote controllers and a PC . . . . I Notes for remote control . . . . . . . . . . . . . . . . . I Connections on rear panel . . . . . . . . . . . . . . . I Connector information . . . . . . . . . . . . . . . . . . I Ground connection . . . . . . . . . . . . . . . . . . . . . I Power source . . . . . . . . . . . . . . . . . . . . . . . . . I Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 18 19 20 22 22 23 I Selecting a frequency . . . . . . . . . . . . . . . . . . . . 8 D Using the channel selector . . . . . . . . . . . . . . . . . . 8 D Using the keypad . . . . . . . . . . . . . . . . . . . . . . . . . . 8 D MN-100/MN-101L . . . . . . . . . . . . . . . . . . . . . . . . 23 D AT-130 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 D Non-Icom tuner . . . . . . . . . . . . . . . . . . . . . . . . . . 23 I Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 D Mounting location . . . . . . . . . . . . . . . . . . . . . . . . . 24 D Mounting example . . . . . . . . . . . . . . . . . . . . . . . . 24 D Transceiver dimensions . . . . . . . . . . . . . . . . . . . . 24 4 RECEIVE AND TRANSMIT . . . . . . . . . . . . . . 9­11 I Basic voice receive and transmit . . . . . . . . . . . 9 I Functions for transmit . . . . . . . . . . . . . . . . . . . . 9 D Transmit frequency check . . . . . . . . . . . . . . . . . . . 9 D Transmit power selection . . . . . . . . . . . . . . . . . . . . 9 I Installing internal options . . . . . . . . . . . . . . . . 25 D Opening the case . . . . . . . . . . . . . . . . . . . . . . . . . 25 D Installing an optional filter and alarm unit . . . . . . 25 I Fuse replacement . . . . . . . . . . . . . . . . . . . . . . 25 8 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . 26 9 SPECIFICATIONS AND OPTIONS . . . . . . . . . . 27 I Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 27 I Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 I Functions for receive . . . . . . . . . . . . . . . . . . . 10 D Squelch function . . . . . . . . . . . . . . . . . . . . . . . . . D Noise blanker . . . . . . . . . . . . . . . . . . . . . . . . . . . . D AGC off function . . . . . . . . . . . . . . . . . . . . . . . . . . D RF gain setting . . . . . . . . . . . . . . . . . . . . . . . . . . . D Clarity control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 10 10 10 10 I CW operation . . . . . . . . . . . . . . . . . . . . . . . . . 11 I FSK operation . . . . . . . . . . . . . . . . . . . . . . . . . 11 I Cross channel operation . . . . . . . . . . . . . . . . . 11 5 USER CHANNEL PROGRAMMING . . . . . . . . . 12 I Programming a frequency . . . . . . . . . . . . . . . 12 D Receive frequency . . . . . . . . . . . . . . . . . . . . . . . . 12 D Transmit frequency . . . . . . . . . . . . . . . . . . . . . . . 12 D Channel names . . . . . . . . . . . . . . . . . . . . . . . . . . 12 iv OPERATING RULES AND GUIDELINES CALL PROCEDURES Calls must be properly identified and time limits must be respected. 1 LOGS All distress, emergency and safety calls must be recorded in complete detail. Log data activity is usually recorded in 24 hour time. Universal Time (UTC) is frequently used. Give your call sign each time you call another vessel or coast station. If you have no call sign, identify your vessel name and the name of the licensee. Adjustments, repairs, channel frequency changes and authorized modifications affecting electrical operation of the equipment must be kept in the maintenance log; entries must be signed by the authorized licensed technician performing or supervising the work. Give your call sign at the end of each transmission that lasts more than 3 min. You must break and give your call sign at least once every 15 min. during long ship-to-shore calls. Keep your unanswered calls short, less than 30 sec. Do not repeat a call for 2 min. RADIO LICENSES (1) SHIP STATION LICENSE You must have a current radio station license before using the transceiver. It is unlawful to operate a ship station which is not licensed. Inquire through your dealer or the appropriate government agency for a Ship-Radiotelephone license application. This government-issued license states the call sign which is your craft's identification for radio purposes. (2) OPERATOR'S LICENSE A Restricted Radiotelephone Operator Permit is the license most often held by small vessel radio operators when a radio is not required for safety purposes. The Restricted Radiotelephone Operator Permit must be posted or be kept with the operator. Only a licensed radio operator may operate a transceiver. However, non-licensed individuals may talk over a transceiver if a licensed operator starts, supervises, and ends the call, and makes the necessary log entries. Keep a copy of the current government rules and regulations handy. Unnecessary transmissions are not allowed. PRIORITIES Read all rules and regulations pertaining to priorities and keep an up-to-date copy handy. Safety and distress calls take priority over all others. False or fraudulent distress calls are prohibited and punishable by law. PRIVACY Information overheard but not intended for you cannot be lawfully used in any way. Indecent or profane language is prohibited. 1 2 PANEL DESCRIPTION I Front panel (controller) !9 !8 !7 !5 !4 !3 !6 !2 iM 710 TX FREQ MF/HF MARINE TRANSCEIVER 1 2 3 2182KHz RESET ALM RX TUNE TX DSC 4 5 6 DUP SIMP STANDBY AGC SQL N B SCAN F A 7 8 9 !1 [ALARM] + [TX FREQ] FOR ALARM TX 0 1 2 3 4 CE 0 ­ MODE ALARM GROUP AGC NB SQL FUNC CH/FREQ RX TX TUNE CHANNEL MICROPHONE POWER VOLUME SPEAKER CLARITY DIMMER q w er t y u i o !0 q MICROPHONE CONNECTOR (p. 20) Accepts the supplied microphone or an optional handset. u ANTENNA TUNE SWITCH [TUNE] (p. 9) Tunes the connected tuner to the antenna. · Activates only when an optional antenna tuner such as Icom's AT-130/E is connected.  NOTE: No audio is output via the speaker when the microphone or handset is not connected. w POWER SWITCH [POWER] Turns power on and off. e SPEAKER SWITCH [SPEAKER] Turns the built-in speaker on and off. · "è" appears in the display while the speaker is turned off. · Any external speaker connected to the rear panel is not turned off.  NOTE: When selecting "automatic tuning" in set mode, pushing this switch is not necessary to tune the antenna. (p. 13) i CHANNEL SELECTOR [CHANNEL] (p. 6) Selects an operating channel within the selected channel group such as ITU channels. · User channels can be selected from 1 to 160 (max.) in sequence regardless of the channel group. Changes the operating frequency* after [CE] is pushed (while "s" appears). · The changed frequency is not programmed in this way. r DISPLAY INTENSITY SWITCH [DIMMER] Toggles the display backlight on and off. While pushing, rotate [CHANNEL] to adjust the backlighting to one of 4 levels. While pushing, rotate [GROUP] to adjust the display contrast to one of 10 levels. t VOLUME CONTROL [VOLUME] Adjusts the audio output level. · Audio does not come from the speaker when: A microphone is not connected. The [SQL] switch is turned on and no signal is being received. y GROUP CHANNEL SELECTOR [GROUP] Selects groups in 20 channel steps and ITU marine channel groups. o FUNCTION SWITCH [FUNC] After pushing, activates the secondary functions of these switches: [RESET] . . Deactivates external control such as from a DSC terminal unit when connected. [SQL] . . . . . Starts and stops scan (p. 7). [SPEAKER] Activates intercom function (p. 17). [RX] . . . . . . Sets RF gain (p. 10). [TX] . . . . . . Selects transmit power (p. 9). [CE] . . . . . . Reprograms the channel name (p. 12).  NOTE: Function availability depends on version. !0 CLARITY CONTROL [CLARITY] (p. 10) Shifts the receive frequency ±150 Hz for clear reception of an off frequency signal.  NOTE: Some versions have no ITU channels. 2 PANEL DESCRIPTION 2 !1 KEYPAD Enters the selected channel number (or freRX quency*) for direct channel selection. (p. 7) Stores a receive frequency into a user channel or ITU simplex channel when: · pushing [CE] ("s" appears) · entering the desired frequency via the keypad · pushing and holding [RX] (p. 12) !4 AGC OFF SWITCH [AGC] (p. 10) Deactivates the AGC function to receive weak signals blocked by strong adjacent signals. · "ê" appears when the [AGC] switch is turned on (stands for AGC deactivated). TX Adjusts the RF gain after pushing [FUNC] to reduce the receiver sensitivity. (p. 10) Stores a transmit frequency into a user channel (except General versions) when: · pushing [TX] ("$" flashes) · pushing [CE] ("s" appears) · entering the desired frequency via the keypad · pushing and holding [TX] (p. 12) !5 MODE SWITCH [MODE] (p. 9) Selects an operating mode temporarily. Available modes differ with version. · J3E (USB), H3E, J2B (AFSK), FSK, R3E and A1A (CW) modes are available. · The temporary mode is cleared and the previous mode appears when changing a channel. Selects the transmitter channel for cross channel operation (Europe versions only) when: · pushing [TX] ("$" flashes) · entering the desired channel number via the keypad !6 OVEN INDICATOR (GMDSS version only) Internal high-stability crystal oscillator unit contains a temperature-compensating oven heater. This high-stability crystal oscillator improves frequency stability. · "STANDBY" appears when power to the main unit is turned off. Selects the transmit output power after pushing [FUNC]. (p. 9) CE Toggles the channel number input and frequency input.* (p. 8) · "s" appears when frequency input* is selected. · The channel selector and keypad changes the frequency while "s" appears. !7 TRANSMIT FREQUENCY SWITCH [TX FREQ] (p. 9) Displays the transmit frequency and opens the squelch to check and monitor the transmit frequency. !8 2182 kHz SELECTION SWITCH [2182kHz · RESET ] (p. iii) Selects channel 0 (2182 kHz; distress call frequency). · The channel selector does not function when selecting channel 0. Clears the entered digit and retrieves the previous channel (or frequency*) while entering numbers. (p. 7) Enters the name programming condition, after pushing [FUNC], for changing the channel name. (p. 12) Toggles the channel and frequency indications. (p. 6) CH/FREQ Enters "­" for ITU simplex channels. (p. 7) ­ 0 Ignores external control and gives the front panel control priority when an external controller (NMEA format) is connected. !9 ALARM SWITCH [ALARM] (p. iii) Emits a distress alarm signal from the speaker. Transmits a distress alarm or alarm testing signal when pushed together with the [TX FREQ] switch. to 9 Enter channel number with up to 4 or 5 digits when "s" does not appear. (p. 7) Enter the frequency with up to 6 digits* when "" appears. (p. 8)  NOTE: General versions are not equipped with this [ALARM] switch. !2 SQUELCH SWITCH [SQL] (p. 10) Activates the voice squelch function to reject undesired background noise while no signal is being received. · The squelch opens only when the received signal contains no voice or FSK components. Starts and stops the scan function after pushing [FUNC]. (p. 7) !3 NOISE BLANKER SWITCH [NB] (p. 10) Turns the noise blanker function on to remove pulse-type noise such as engine ignition noise. · "NB" appears when the function is turned on. *Some versions do not have frequency selection and frequency indication. 3 2 PANEL DESCRIPTION I Main unit (controller detached) q w e r t q RS-232C CONNECTOR (p. 18) Connects the IC-M710RT to a PC via an RS-232C cable for remote control of transceiver function using the optional RS-710RT software. w POWER INDICATOR Appears while power is turned on. e CONTROLLER CONNECTOR Connects the main body of the IC-M710RT to the front panel (controller) when detached from the main body. r CONTROLLER CONNECTOR (pgs. 16, 17) Same as above. t POWER SWITCH Same function as the power switch ([POWER]) on the front panel. · Only available on the Europe and GMDSS versions. D HM-120 microphone keys The "P" key on the HM-120 HAND MICROPHONE can be set to function as the [MODE], [NB], [AGC], [SQL] or [TUNE] keys on the remote controller. (The YZ keys function the same as the [CHANNEL] selector). Also, using set mode (p. 15) these keys can be deactivated if desired. While pushing [P] on the microphone and the switch on the remote controller whose function you want to assign (see above), turn power ON. · Repeat this to assign a different key. 4 PANEL DESCRIPTION 2 I Display !7 !6 !5 !4 !3 q w e r t ALM RX TUNE TX D SC DUP SIMP AGC SQL N B SCAN F 3 4 A !2 !1 0 1 2 y u i o !0 q ALARM INDICATOR (p. iii) Appears when the alarm function is activated such as for an alarm test or distress alarm transmission. · Not available in General version. i SQUELCH INDICATOR (p. 10) Appears when the squelch is on. o SCAN INDICATOR (p. 7) Appears when the scan function is in use. · The scan function is not available on some versions. · Pushing [FUNC] then [SQL] starts and stops scan. w RECEIVE INDICATOR (p. 10) Appears while receiving and when the squelch is open. e TUNE INDICATOR (p. 9) Flashes while the connected antenna tuner, such as Icom's AT-130, is being tuned. · Tuning starts when transmitting on a new frequency or pushing the [TUNE] switch. !0 FUNCTION INDICATOR Appears when the [FUNC] switch is pushed. !1 NOISE BLANKER INDICATOR (p. 10) Appears when the [NB] switch is turned on. !2 AGC OFF INDICATOR (p. 10) Appears when the [AGC] switch is pushed to indicate the AGC function is deactivated. !3 MODE READOUT Shows the selected operating mode (type of emission). !4 SPEAKER OFF INDICATOR Appears when the [SPEAKER] switch is pushed to indicate the front panel speaker is deactivated. !5 CHANNEL READOUT Shows the selected channel number during channel indication. (p. 6) Shows the receive frequency during frequency indication. (p. 9) !6 SIMPLEX/DUPLEX INDICATORS These appear to show whether the selected channel is simplex or duplex. !7 FREQUENCY INDICATORS (p. 8) Appear when the frequency entry condition* is selected for frequency selection. · The [CE] key toggles the indicator ON and OFF. * Some versions have no frequency entry condition. r TRANSMIT INDICATOR Appears when transmitting. (p. 9) Flashes when the [TX] key is pushed for transmit frequency programming. (p. 12) t DSC INDICATOR (p. iii) Appears when an optional GM-110DSC DSC TERMINAL UNIT controls transceiver functions. · The GM-110DSC can be connected to GMDSS versions only. y S/RF METER Shows the relative received signal strength while receiving. Shows output power while transmitting. Shows antenna current level when an optional AT-130E HF ANTENNA TUNER is connected (Europe versions only). u CHANNEL/VFO INDICATOR Shows the pre-programmed channel name (alphanumeric) during channel indication. (p. 6) · Some versions have no channel name function and show receive frequency instead. Shows the transmit frequency during frequency indication. (p. 6) Shows transmit channel number during cross channel operation (Europe versions only). (p. 11) 5 3 SELECTING A CHANNEL/FREQUENCY I Selecting a channel The transceiver has 160 user channels and ITU channels. However, the number of user channels can be optionally restricted and ITU channels are not available with some versions. ALM RX  NOTE: When channel 0 and/or 2182 kHz is selected with the [2182KHz] switch, channel selection is NOT possible. In such cases, push [2182KHz] in advance. ALM RX AGC F TX DSC ALM RX TX DSC CHANNEL INDICATION DUP DUP AGC F TX D SC ALM RX TX D SC CH/FREQ CE DUP FREQUENCY INDICATION AGC F DUP AGC F  NOTE: Channel name (alphanumeric) may not appear during channel indication depending on set mode settings (p. 14). CHANNEL SELECTION MODE Channel can be selected FREQUENCY SELECTION MODE Frequency can be changed D Using the channel selector The transceiver has two large controls for group selection and channel selection. The [GROUP] selector changes channels in 20 channel increments and selects ITU channel groups*; and the [CHANNEL] selector selects each channel. [EXAMPLE]: Selection with the [GROUP] selector 1 WWV 21 KMI 41 WOM 61 WOO J3E 2501 26.145.0 121 FAX 141 J3E J3E 25-1 FAX 4001 4.210.5 FSK ITU FSK channels* J3E J3E J3E J3E J3E 401 4.357.0 4-1 4A LTD 601 6.501.0 J3E J3E ITU SSB channels* J3E Make sure no "s" indicator appears on the display. ALM RX TX DSC DUP AGC F If appears, push [CE] to delete it. Rotate the [GROUP] selector to select the desired Rotate the [CHANNEL] selector to select the desired channel. channel group as shown at right and/or below. SHP/SHP *All ITU channels are not available with some versions and ITU FSK channels can be hidden using set mode. (p. 13) CHANNEL GROUPS CHANNEL NO. 1 to 160 401 to 427 4-1 to 4-9 601 to 608 6-1 to 6-9 801 to 832 8-1 to 8-9 1201 to 1241 12-1 to 12-9 DESCRIPTION User channels*1 4 MHz ITU duplex channels 4 MHz ITU simplex channels 6 MHz ITU duplex channels 6 MHz ITU simplex channels 8 MHz ITU duplex channels 8 MHz ITU simplex channels 12 MHz ITU duplex channels 12 MHz ITU simplex channels CHANNEL NO. 1601to 1656 16-1 to 16-9 1801 to 1815 18-1 to 18-9 2201 to 2253 22-1 to 22-9 2501 to 2510 25-1 to 25-9 4001 to 25040 DESCRIPTION 16 MHz ITU duplex channels 16 MHz ITU simplex channels 18 MHz ITU duplex channels 18 MHz ITU simplex channels 22 MHz ITU duplex channels 22 MHz ITU simplex channels 25 MHz ITU duplex channels 25 MHz ITU simplex channels ITU FSK duplex channels*2 *1[GROUP] selector changes in 20 channels steps. *2SITOR use--no group separation. 6 SELECTING A CHANNEL/FREQUENCY 3 D Using the keypad Direct channel selection via the keypad is available for quick channel selection. [EXAMPLE]: Selecting channel 153 ALM RX DUP AGC F Make sure "s" does not appear on the display. Enter the desired channel number via the keypad. · A user channel is selected when channel 1­160 is input (max. number may be optionally restricted). · An ITU SSB channel is selected when channel numbers higher than 401 are input (not available for some versions). · An ITU FSK channel is selected when channel numbers higher than 4001 are input (not usable according to set mode setting). · The "­" key can be used for selecting an ITU simplex channel. · If it appears, push [CE] to delete it. 1 TX DSC ALM RX DUP AGC F 5 TX DSC ALM RX DUP AGC F 3 TX DSC ALM RX DUP AGC F RX TX DSC ALM RX TX DSC Push [RX] to select the entered channel. DUP AGC F D Using scan functions (Some versions do not have these functions) The transceiver has automatic channel or frequency change capability (scan function). There are 3 types of scan functions available to suit your needs. Channel scan ch 2 ch 3 scan is cancelled when transmitting Channel scan and channel resume scan increase channels within a 5 channel range such as ch 1 to ch 5, ch 156 to ch 160, etc. in user channels; or all channels in the group of ITU channels. Programmed scan (optional) changes frequencies within the frequency range between user channels 159 and 160. Scan selection is available in set mode. See p. 14 for scan selection. ch 1 ch 4 ch 5 Select your desired channel group with the [GROUP] and [CHANNEL] selector. · Or use the keypad and [CE] key for direct selection. · This operation is not necessary for programmed scan. SCAN OPERATION Channel resume scan ch 2 ch 3 scan pauses for 30 sec., then resumes after transmitting Push [SQL] to turn OFF the squelch function if pro Push [FUNC] then [SQL] to start the scan. To stop the scan, repeat step again. ch 4 grammed scan is selected. ch 1 · [CHANNEL] rotation and some other switches also stop the scan. ch 5 Programmed scan (optional) ch 159 ch 160 Scans the frequency range between the programmed frqeuencies on channels 159 and 160. Scans fast when squelch is closed and slowly when squelch is open. 7 3 SELECTING A CHANNEL/FREQUENCY I Selecting a frequency The transceiver has 0.5 to 30.0 MHz general coverage receive capability with 100 Hz resolution. The receive frequency can be changed instantly, independent of the transmit frequency.  NOTE: The selected frequency is used for temporary receiving (transmitting is not available). This frequency is cleared once the channel is changed. If you want to program a frequency, refer to p. 12. D Using the channel selector Select a channel which is programmed near the frequency you want to receive. Push the [CE] key to select frequency selection mode. ALM RX TX DSC DUP AGC F Rotate the [CHANNEL] selector to change the fre To return to the previous frequency, push [CE]. · "s" disappears and the previous frequency or channel name appears. · "s" appears on the display. CE No "" indicator shows that the channel will be changed when rotating [CHANNEL]. quency. ALM RX TX DSC DUP AGC F "" and frequency show that the frequency will be changed. D Using the keypad [EXAMPLE]: Setting 12.3450 MHz Select non frqeuency programmed channel. ALM RX AGC TX DSC ALM RX AGC TX DSC F F  CAUTION: A frequency can be entered into a user channel or ITU simplex channel by pushing the [RX] key. However, when pushing and holding the [RX] key after entering a frequency, the previously programmed contents are erased and cannot be retrieved. Therefore, keypad entry should be used only on spare channels. CE Select the memory channel to be used for general coverage use. ALM RX AGC TX DSC F 1 ALM RX AGC TX DSC F 2 3 ALM RX AGC TX DSC ALM RX AGC TX DSC F F 4 5 No frqeuency programmed channel for general coverage use. (mode and channel name do not appear) 0 Push [CE] to select frequency selection mode. Enter the desired frequency with 5 or 6 digits. Push [RX] to input the frequency. · Do not hold [RX] for more than 0.5 sec., otherwise the frequency will be programmed into the channel. RX ALM RX AGC TX DSC (momentarily) F After temporarily receiving. CE ALM RX AGC TX DSC F 8 RECEIVE AND TRANSMIT I Basic voice receive and transmit Check the following in advance: Microphone is connected. [SPEAKER] switch is turned off. [SQL] switch is turned off. [CLARITY] control is set to the center position. 4 Adjust [VOLUME] to the desired audio level when Push [MODE] to select the desired operating mode, Push [TUNE] to tune the antenna tuner, if connected. · This operation is not necessary when "automatic tuning" is selected in set mode (p. 13). receiving a signal. if the received signal is in a different mode. To transmit on the channel, push and hold the PTT switch on the microphone. microphone connector [SPEAKER] [SQL] · "TUNE" flashes for 1 to 2 sec. for the first transmission on a channel when an antenna tuner is connected. After the flashing stops, speak into the microphone at your normal voice level. · The RF meter shows the output power according to your voice level. [CLARITY] Select the desired channel to be received with the [GROUP] and [CHANNEL] selectors. · When receiving a signal, the S-meter shows the signal strength. Release the PTT switch to return to receive. I Functions for transmit D Transmit frequency check When "DUP" appears on the display such as for a ship-to-shore channel, the transmit frequency differs from the receive frequency. In such cases, the transmit frequency should be monitored before transmitting to prevent interference to other stations. Push and hold [TX FREQ] to monitor the transmit frequency. TX FREQ · The display shows the transmit frequency. D Transmit power selection The transceiver has 3 selectable output powers.* High power allows longer distance communications and low power reduces power consumption. *Only 2 selectable output powers are available with some versions. In this case, level 1 stands for 60 W (the same as level 2). Push [FUNC] then [TX] to call up the following display. ALM RX AGC TX DSC F  NOTE: Low power setting affects all channels except the 2182 kHz emergency channel. Rotate the [CHANNEL] selector to select high or low output power. 3 : high power (150 W PEP) 2 : middle power (60 W PEP) 1 : low power (20 W PEP)  NOTE: Although power selection appears possible with GMDSS versions, only high power is available. Push [FUNC] or [CE] to return to the previous display. 9 4 RECEIVE AND TRANSMIT I Functions for receive D Squelch function The squelch function detects signals with voice components and squelches (mutes) unwanted signals such as unmodulated beat signals. This provides quiet standby. When you need to receive weak signals, the squelch should be turned off. Push [SQL] to toggle the function on and off. ALM RX TX DSC DUP AGC SQL F · "SQL" appears when the squelch function is turned on. D Noise blanker The noise blanker function reduces pulse type noise such as that coming from engine ignitions. The noise blanker may distort reception of strong signals. In such cases, the noise blanker should be turned off. Push [NB] to toggle the function on and off. ALM RX TX DSC DUP AGC NB F · "NB" appears when the noise blanker function is turned on. D AGC off function The receiver gain is automatically adjusted according to received signal strength with the AGC (Automatic Gain Control) function to prevent distortion from strong signals and to obtain a constant output level. When receiving weak signals with adjacent strong signals or noise, the AGC function may reduce the sensitivity. In this situation, the AGC function should be deactivated. Push [AGC] to toggle the function on and off. ALM RX AGC AG TX DSC F · "ê" appears when the AGC function is deactivated. D RF gain setting The receiver gain can be reduced with the RF gain setting. This may help to remove undesired weak signals while monitoring strong signals. Usually, the AGC function reduces the RF gain according to the receive signal strength and these weak signals are remove. However, during no signal reception, these weak signals may not be heard. In such cases, the RF gain may be useful for setting a minimum level at which to hear signals. Push [FUNC] then [RX] to call up the following display. ALM RX AGC TX DSC F Rotate the [CHANNEL] selector to set the desired minimum cutting level. · "0" to "9" are available. · S-meter shows the minimum permitted level. Push [FUNC] or [CE] to exit the RF gain display. D Clarity control Voice signals received from other stations may be difficult to receive. This may sometimes happen if a station is transmitting slightly off frequency. In such cases, compensate the receive frequency only, using the [CLARITY] control. Adjust [CLARITY] to improve the audio signal. [CLARITY] 10 RECEIVE AND TRANSMIT 4 I CW operation The transceiver has the following CW keying features selectable in set mode as described on page 15. Full break-in (receiving is possible while transmitting) Delay keying (automatic transmission with keying) Off (manual transmission is necessary before keying) CW key connection Connect a CW keyer or an external electronic Select the desired channel to operate CW mode. When the selected channel is not in A1A mode, push [MODE] one or more times to select "A1A." Operate the CW keyer to transmit a CW signal. keyer to the ACC(1) socket as shown at right. CW key 425 1 3 8 6 7 ACC(1) socket pin 2  NOTE: CW mode is not available in some versions and CW narrow can be selected in set mode (p. 14) when an optional filter is installed (already built-in to the GMDSS versions). pin 1 I FSK operation The transceiver has FSK and J2B modes for FSK operation--use FSK when using the built-in oscillator; use J2B when using an AFSK terminal unit. FSK terminal unit connection Connect an FSK terminal unit as shown at right. Select the desired channel. Push [MODE] one or more times to select the type of emission, "FSK" or "J2B." Operate the FSK terminal unit. · FSK ITU channel group, ch 4001 to ch 25040, are available depending on version. pin 4 pins 2, 5 pin 3 FSK keying AF input Tx/Rx control Ground FSK terminal unit  NOTE: FSK shift frequency and FSK polarity can be adjusted in set mode (p. 14). Some transceivers my operate 1.7 kHz higher than the IC-M710RT's J2B mode even when the same displayed frequencies are in use. 425 1 3 8 6 7 ACC(1) socket I Cross channel operation* Cross channel operation is available with some versions to operate different channels for receive and transmit. Cross channel operation example ALM RX TX DSC DUP Select the desired channel for receive. Push [TX], then select the desired channel for transmit. · ITU simplex channels cannot be used. AGC F 2 3 4 A 0 1 While receiving