ICOM orporated 307300 HF/50 MHz TRANSCEIVER User Manual IC 718 Instruction Manual

ICOM Incorporated HF/50 MHz TRANSCEIVER IC 718 Instruction Manual

Contents

User Manual 1

INSTRUCTION MANUALHF/50 MHz TRANSCEIVERi7600
iFOREWORDThank you for making the IC-7600 your radio of choice. We hope you agree with Icom’s philosophy of “technology first.” Many hours of research and devel-opment went into the design of your IC-7600.D FEATURESM Ultimate receiver performance: third-order inter-cept (IP3) of +30 dBm (HF bands only)M Built-in Baudot RTTY and PSK modulator/demodu-lator and direct PC keyboard connection capability for RTTY and PSK operations without a PCM High resolution spectrum scope— center frequency and fixed frequency modes, plus mini-scope dis-playsM USB connectors on front and rear panelsM Large LCD with LED backlightIMPORTANTREAD 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-7600.EXPLICIT DEFINITIONSWORD DEFINITIONRWARNING Personal injury, fire hazard or electric shock may occur.CAUTION Equipment damage may occur.NOTEIf disregarded, inconvenience only. No risk of personal injury, fire or electric shock.SUPPLIED ACCESSORIESThe transceiver comes with the following accessories.Qty.q Hand microphone ............................................ 1w DC power cable ............................................... 1e Spare fuse (ATC 5 A) ...................................... 1r Spare fuse (ATC 30 A) .................................... 2t 3.5 (d) mm plug ................................................. 1qetwrFCC INFORMATION• FOR CLASS B UNINTENTIONAL RADIATORS:This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equip-ment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guar-antee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interfer-ence by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help.Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incorporated (Japan) in the United States, the United King-dom, Germany, France, Spain, Russia and/or other countries.Microsoft, Windows and Windows Vista are either registered trade-marks or trademarks of Microsoft Corporation in the United States and/or other countries.All other products or brands are registered trademarks or trade-marks of their respective holders.
PRECAUTIONSR WARNING HIGH RF VOLTAGE! NEVER attach an antenna or internal antenna connector during transmission. This may result in an electrical shock or burn.R WARNING! NEVER operate the transceiver with a headset or other audio accessories at high volume levels. Hearing experts advise against continu-ous high volume operation. If you experience a ringing in your ears, reduce the volume or discontinue use.R WARNING! Immediately turn the transceiver power OFF and remove the power cable if it emits an abnormal odor, sound or smoke. Contact your Icom dealer or distributor for advice.R CAUTION! NEVER put the transceiver in any unstable place (such as on a slanted surface or vibrated place). This may cause injury and/or damage to the transceiver.R CAUTION! NEVER change the internal settings of the transceiver. This may reduce trans-ceiver performance and/or damage to the transceiver.In particular, incorrect settings for transmitter circuits, such as output power, idling current, etc., might damage the expensive final devices.The transceiver warranty does not cover any prob-lems caused by unauthorized internal adjustment.R CAUTION! NEVER apply AC power to the [DC13.8V] socket on the transceiver rear panel. This could cause a fire or damage the transceiver.R CAUTION! NEVER apply more than 16 V DC, such as a 24 V battery, to the [DC13.8V] socket on the transceiver rear panel. This could cause a fire or damage the transceiver.R CAUTION! NEVER let metal, wire or other objects protrude into the transceiver or into connectors on the rear panel. This may result in an electric shock.R CAUTION! NEVER block any cooling vents on the top, rear or bottom of the transceiver.R CAUTION! NEVER expose the transceiver to rain, snow or any liquids.R CAUTION! NEVER install the transceiver in a place without adequate ventilation. Heat dissipation may be reduced, and the transceiver may be damaged.R CAUTION! NEVER operate or touch the trans-ceiver with wet hands. This may result in an electric shock or damage to the transceiver.DO NOT use chemical agents such as benzine or alcohol when cleaning the IC-7600, as they can damage the transceiver’s surfaces.DO NOT push the PTT switch when you don’t actu-ally desire to transmit.DO NOT use or place the transceiver in areas with temperatures below ±0°C (+32°F) or above +50°C (+122°F).DO NOT place the transceiver in excessively dusty environments or in direct sunlight.DO NOT place the transceiver against walls or putting anything on top of the transceiver. This may overheat the transceiver.Always place unit in a secure place to avoid inadver-tent use by children.BE CAREFUL! If you use a linear amplifier, set the transceiver’s RF output power to less than the linear amplifier’s maximum input level, otherwise, the linear amplifier will be damaged.BE CAREFUL! The heatsink will become hot when operating the transceiver continuously for long peri-ods of time.Use Icom microphones only (supplied or optional). Other manufacturers’ microphones have different pin assignments, and connection to the IC-7600 may damage the transceiver or microphone.The LCD display may have cosmetic imperfections that appear as small dark or light spots. This is not a malfunction or defect, but a normal characteristic of LCD displays.During maritime mobile operation, keep the trans-ceiver and microphone as far away as possible from the magnetic navigation compass to prevent errone-ous indications.Turn the transceiver power OFF and/or disconnect the DC power cable when you will not use the trans-ceiver for long period of time.For U.S.A. onlyCAUTION: Changes or modifications to this device, not expressly approved by Icom Inc., could void your authority to operate this device under FCC regula-tions.i123456789101112131415161718192021
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q POWER SWITCH [POWER•TIMER] (p. ??) While transceiver’s power is OFF: ± Push to turn the transceiver power ON. • Turn the optional DC power supply ON in advance. • The indicator on this switch lights green when pow-ered ON. While transceiver’s power is ON: ± Push momentarily to toggle the timer function ON and OFF. (p. ??) • The indicator on this switch lights red when the timer function is ON. ± Push and hold for 1 sec. to turn the transceiver power OFF.w TRANSMIT SWITCH [TRANSMIT] Selects transmit or receive. • The [TX] indicator lights red while transmitting and the [RX] indicator lights green when the squelch is open.e HEADPHONE JACK [PHONES] Accepts standard stereo headphones. • Output power: 5 mW with an 8 ø load. • When headphones are connected, the internal speaker or connected external speaker does not function.r ELECTRONIC KEYER JACK [ELEC-KEY] Accepts a paddle to activate the internal electronic keyer for CW operation. (p. ??) • You can select internal electronic keyer, bug-key or straight key operation in keyer CW-key screen. (p. ??) • A straight key jack is located on the rear panel. See [KEY] on p. ??. • Keyer polarity (dot and dash) can be reversed in keyer CW-key screen. (p. ??) • A 4-channel memory keyer is available for your conve-nience. (p. ??)(dot)(com)(dash)t USB (Universal Serial Bus) CONNECTOR (A type) [USB] (A) (p. ??) ± Insert USB-Memory* for both reading/storing a wide variety of the transceiver’s information and data. • The indicator above the connectors lights or blinks when the transceiver reads or writes to the memory data. • Unmount operation should be performed before re-moving the USB-Memory* (p.??). ± Connects a PC keyboard for RTTY and PSK op-erations. • USB keyboards* are supported. *: USB-Memory or USB keyboard is not supplied by Icom.N Front panelTWIN-PBTRIT/ TXӠNOTCHCW PITCHVOICE MEMORYBAL NRAF RF/SQLMIC GAIN RF POWER BK-IN DELAY KEY SPEEDTIMERPHONESELEC-KEYMICAUTOTUNEGENE F-INP1.8 3 .51214518673248289500ENT471021CHANGETSXFCSPLITDUALWATCHMAIN/SUBVFO/ MEMOMP-WMWMP-RF-6F-5F-4F-3F-2F-1NRNBPBT-CLRAPF/TPFNOTCHPOWERRITCLEARTXӠSPEECHLOCKFILTERREC PLAYEXIT/SETSSB CWRTTY/PSKAM/FMMONITORTRANSMIT TUNERHF/50MHz TRANSCEIVERLOCKTX RX SPLITqweytruio!011PANEL DESCRIPTION
y MICROPHONE CONNECTOR [MIC] Accepts the supplied or optional microphone. • See p. ?? for appropriate microphones. • See p. ?? for microphone connector information.u MIC GAIN CONTROL [MIC GAIN] (p. ??) Adjusts microphone input gain. • The transmit audio tone in SSB, AM and FM modes can be adjusted independently in set mode. (p. ??) How to set the microphone gain.Set the [MIC GAIN] control so that the ALC meter occasionally moves up-scale during normal voice transmission in SSB, AM or FM mode.MIC GAINRecommended level for an Icom microphoneIncreasesDecreasesPushi AF CONTROL [AF] (inner control; p. ??) Varies the audio output level of the speaker or headphones.IncreasesDecreaseso RF POWER CONTROL [RF PWR] (p. ??) Continuously varies the RF output power from mini-mum (2 W*) to maximum (100 W*). *AM mode: 1 W to 30 WIncreasesmax. 100 W(30 W for AM)Decreasesmin. 2 W(1 W for AM)Push!0 RF GAIN CONTROL/SQUELCH CONTROL [RF/SQL] (outer control; p. ??) Adjusts the RF gain and squelch threshold level. The squelch removes noise output from the speaker (closed condition) when no signal is received. • The squelch is particularly effective for FM. It is also available for other modes. • 12 to 1 o’clock position is recommended for any setting of the [RF/SQL] control. • The control can be set as ‘Auto’ (RF gain control in SSB, CW and RTTY; squelch control in AM and FM) or squelch control (RF gain is fixed at maximum) in set mode as follows. (p. ??)MODE SET MODE SETTINGAUTO SQL RF GAIN + SQLSSB, CWRTTY/PSK RF GAIN SQL RF GAIN + SQLAM, FM SQL SQL RF GAIN + SQL• When setting as RF gain/squelch controlMaximum RF gainS-meter squelchNoise squelch (FM mode)Squelch is open.RF gain adjustablerangeRecommended level• When functioning as RF gain control (Squelch is fixed open; SSB, CW, RTTY only)Minimum RF gainAdjustablerangeMaximum RF gain• When functioning as squelch control (RF gain is fixed at maximum.)Squelch is open.S-meter squelchS-meter squelchthresholdNoise squelch threshold (FM mode)Shallow DeepNoise squelch (FM mode)While rotating the RF gain control, noise may be heard. This comes from the DSP unit and does not indicate an equipment malfunction. 21PANEL DESCRIPTION123456789101112131415161718192021
!1 BREAK-IN DELAY CONTROL [BK-IN DELAY] (p. ??)Adjusts the transmit-to-receive switching delay time for CW semi-break-in operations.PushShort delay for high speed keying (2 dot)Long delay for slow speed keying (13 dot)!2 ELECTRONIC CW KEYER SPEED CONTROL [KEY SPEED] (p. ??) Adjusts keying speed for the internal electronic CW keyer from 6 wpm (min.) to 48 wpm (max.).Push Slow(6 wpm)Fast(48 wpm)!3 MULTI-FUNCTION SWITCHES Push to select the functions indicated in the LCD display to the right of these switches. • Functions vary depending on the operating condition.MF1 (MULTI-FUNCTION 1 SWITCH)ANT SWITCH (ANT)± Selects the antenna connector be-tween ANT1 and ANT2 when pushed. (p. ??)± Turns the [RX ANT] (receive antenna) ON and OFF when pushed and held for 1 sec. • When the receive antenna is activated, the antenna which is connected to the [ANT1] or [ANT2] is used for transmis-sion only. When a transverter is in use, this [ANT] does not function and ‘TRV’ appears.MF2 (MULTI-FUNCTION 2 SWITCH)METER SWITCH (METER)± Selects RF power (Po), SWR, ALC, COMP, VD or ID metering during trans-mit. (p. ??)± Switches the multi-function digital meter ON and OFF when pushed and held for 1 sec. (p. ??)N Front panel (continued)TWIN-PBTRIT/ TXӠNOTCHCW PITCHVOICE MEMORYBAL NRAF RF/SQLMIC GAIN RF POWER BK-IN DELAY KEY SPEEDTIMERPHONESELEC-KEYMICAUTOTUNEM.SCOPEGENE F-INP1.8 3 .51214518673248289500ENT471021CHANGETSXFCSPLITDUALWATCHMAIN/SUBVFO/ MEMOMP-WMWMP-RF-6F-5F-4F-3F-2F-1NRNBPBT-CLRAPF/TPFNOTCHPOWERRITCLEARTXӠSPEECHLOCKFILTERREC PLAYEXIT/SETSSB CWRTTY/PSKAM/FMMONITORTRANSMIT TUNERHF/50MHz TRANSCEIVERLOCKTX RX SPLIT!1 !2!331PANEL DESCRIPTION
MF3 (MULTI-FUNCTION 3 SWITCH)P.AMP SWITCH (P.AMP)± Selects one of 2 receive RF preamps or bypasses them. (p. ??) • “P. AMP1” activates 10 dB preamp. • “ P. AMP2” activates 16 dB high-gain pre-amp. • “P. AMP OFF” can also be selected.± Turns the preamp function OFF when pushed and held for 1 sec. (p. ??) What is the preamp?The preamp amplifies signals in the front end to im-prove S/N ratio and sensitivity. Select “P. AMP1” or “P. AMP2” when receiving weak signals.MF4 (MULTI-FUNCTION 4 SWITCH)ATT SWITCH (ATT)± Selects 6 dB, 12 dB or 18 dB attenua-tor when pushed. (p. ??) • “ATT OFF” can also be selected.± Turns the attenuator function OFF when pushed and held for 1 sec. (p. ??) What is the attenuator?The attenuator prevents a desired signal from being distorted when very strong signals are near the de-sired frequency, or when very strong electromag-netic fields, such as from a broadcasting station, are near your location.MF5 (MULTI-FUNCTION 5 SWITCH)AGC SWITCH (AGC)± Activates and selects fast, middle or slow AGC time constant when pushed. (p. ??) • In FM mode, only “FAST” is available.± Enters the AGC set mode when pushed and held for 1 sec. (p. ??) AGC time constant can be set between 0.1 to 8.0 sec. (depends on mode), or turned OFF. When AGC is “OFF,” the S-meter does not function. What is the AGC?The AGC controls receiver gain to produce a con-stant audio output level, even when the received signal strength varies dramatically. Select “FAST” for tuning and then select “MID” or “SLOW” depend-ing on the receiving condition.MF6 (MULTI-FUNCTION 6 SWITCH)VOX SWITCH (VOX)± Push to turn the VOX function ON and OFF during SSB, AM and FM mode operation. (p. ??)± Push and hold for 1 sec. to enter VOX set mode. (p. ??) What is the VOX function?The VOX function (voice operated transmission) activates transmission without pushing the trans-mit switch or PTT switch when you speak into the microphone; then automatically returns to receive when you stop speaking.BK-IN SWITCH (BK-IN)± Selects semi break-in, full break-in op-eration, or turns the break-in operation OFF when pushed in CW mode. (p. ??) What is the break-in function?The break-in function switches transmit and receive with CW keying. Full break-in function (QSK) can monitor the receive signal during keying.MF7 (MULTI-FUNCTION 7 SWITCH)COMP SWITCH (COMP)± Turns the speech compressor ON and OFF in SSB mode. (p. ??)± Switches the narrow, middle or wide compression when pushed and held for 1 sec. What is the speech compressor?The speech compressor compresses the transmit-ter audio input to increase the average audio output level, to increase talk power. This function is effec-tive for long-distance communication or when prop-agation conditions are poor.1⁄4 SWITCH (1⁄4)± Turns the 1⁄4 speed tuning function ON and OFF in SSB data, CW, RTTY and PSK modes. (p. ??) • 1⁄4 function sets dial rotation to 1⁄4 of nor-mal speed for fine tuning.TONE SWITCH (TONE)± Switches between the tone encoder, tone squelch function and no-tone operation when pushed in FM mode. (pgs. ??, ??)± Enters the tone set mode when pushed and held for 1 sec. in FM mode. (pgs. ??, ??)41PANEL DESCRIPTION123456789101112131415161718192021
!4 NOISE REDUCTION SWITCH [NR] (p. ??)Push to switch DSP noise reduction ON and OFF. • The indicator on this switch lights green when the func-tion is activated.!5 MONITOR SWITCH [MONITOR] (p. ??) Monitors your transmitted IF signal. • The CW sidetone functions regardless of the [MONI-TOR] switch setting in CW mode. • The indicator on this switch lights green while the func-tion is activated.!6 ANTENNA TUNER SWITCH [TUNER] (p. ??) ± Turns the internal antenna tuner ON and OFF (bypass) when pushed momentarily. • The indicator on this switch lights green when the tuner is turned ON, goes off when tuner is turned OFF (bypassed). ± Tunes the antenna tuner manually when pushed and held for 1 sec. • The indicator on this switch blinks red during manual tuning. • When the tuner cannot tune the antenna, the tuning circuit is bypassed automatically after 20 sec.!7 NOISE REDUCTION LEVEL CONTROL [NR] (outer control; p. ??)Adjusts the DSP noise reduction level when the noise reduction function is in use. Set for maximum readability. • To use this control, push [NR] (!4) in advance.DecreasesIncreases!8 BALANCE CONTROL [BAL] (inner control; p. ??) Adjusts the audio output balance between main and sub readout frequencies while in dualwatch.Increases mainreadout gainIncreases subreadout gain!9 NOISE BLANKER SWITCH [NB] (p. ??) ± Switches the noise blanker ON and OFF when pushed. The noise blanker reduces pulse-type noise such as that generated by automobile igni-tion systems. This function cannot be used in FM mode, or on non-pulse-type noise. • The indicator on this switch lights green while the function is activated.± Enters the noise blanker level set mode when pushed and held for 1 sec.@0 LCD FUNCTION SWITCHES [F-1] to [F-6] Push to select the function indicated in the LCD dis-play above these switches. • Functions vary depending on the operating condition.N Front panel (continued)TWIN-PBTRIT/ TXӠNOTCHCW PITCHVOICE MEMORYBAL NRAF RF/SQLMIC GAIN RF POWER BK-IN DELAY KEY SPEEDTIMERPHONESELEC-KEYMICAUTOTUNEGENE F-INP1.8 3 .51214518673248289500ENT471021CHANGETSXFCSPLITDUALWATCHMAIN/SUBM.SCOPEVFO/ MEMOMP-WMWMP-RF-6F-5F-4F-3F-2F-1NRNBPBT-CLRAPF/TPFNOTCHPOWERRITCLEARTXӠSPEECHLOCKFILTERREC PLAYEXIT/SETSSB CWRTTY/PSKAM/FMMONITORTRANSMIT TUNERHF/50MHz TRANSCEIVERLOCKTX RX SPLIT!4!5!6!7!9!8@0@1@2@3@7@8@9@6@5@451PANEL DESCRIPTION
@1 MODE SWITCHES Selects the desired mode. (p. ??) • Announces the selected mode via the speech synthe-sizer. (p. ??) [SSB] ± Selects USB and LSB modes alternately when pushed. ± Selects SSB data mode (USB-D, LSB-D) when pushed and held for 1 sec. in SSB mode. • In SSB data mode, push to return to SSB mode.± Switches D1, D2 and D3 when pushed and held for 1 sec. in SSB data mode. [CW] Selects CW and CW-R (CW reverse) modes alter-nately when pushed. [RTTY/PSK] ± Selects RTTY and PSK modes alternately when pushed.± Switches RTTY and RTTY-R (RTTY reverse) mode when pushed and held for 1 sec. in RTTY mode.± Switches PSK and PSK-R (PSK reverse) mode when pushed and held for 1 sec. in PSK mode. [AM/FM] ± Selects AM and FM modes alternately. ± Selects AM or FM data mode (AM-D/FM-D) when pushed and held for 1 sec. in AM or FM mode, respectively. • In AM or FM data mode, push to return to AM or FM mode, respectively.± Switches D1, D2 and D3 when pushed and held for 1 sec. in AM or FM data mode.@2 FILTER SWITCH [FILTER] (p. ??) ± Push to select one of 3 IF filter settings. ± Push and hold for 1 sec. to display the filter set screen.@3 EXIT/SET SWITCH [EXIT/SET] ± Push to exit, or return to the previous screen in-dication during spectrum scope, memory, scan or set mode screen display. ± Push and hold for 1 sec. to display the set mode menu screen.@4 VOICE MEMORY RECORD SWITCH [REC] (p. ??) ± Push to record the previous received signal for the preset time period. • The preset time period can be set in voice set mode. (p. ??) ± Push and hold for 1 sec. to record the received signal until the recording is cancelled. • Push this switch momentarily to stop recording. • The memory records the latest 30 sec. of audio.@5 VOICE MEMORY PLAYBACK SWITCH [PLAY] (p. ??) ± Push to playback the previously recorded audio for the preset time period. ± Push and hold for 1 sec. to playback all of the previously recorded audio.@6 AUTOMATIC TUNING SWITCH [AUTO TUNE] (p. ??) Turns the automatic tuning function ON and OFF in CW and AM modes.IMPORTANT!When receiving a weak signal, or receiving a sig-nal with interference, the automatic tuning func-tion may tune the receiver to an undesired signal.@7 MAIN DIAL Changes the displayed frequency, selects set mode setting, etc.@8 SPEECH/LOCK SWITCH [SPEECH/LOCK] ± Push to announce the S-meter indication and the selected frequency. (p. ??) • The parameters to be announced can be selected in the others set mode. (p. ??) ± Push and hold for 1 sec. to turn the dial lock function ON and OFF. (p. ??) • The dial lock function electronically locks the main dial. • The lock indicator lights while the dial lock function is activated. NOTE: The [SPEECH/LOCK] switch operation to activate the voice synthesizer or the dial lock functions can be replaced in others set mode screen. (p. ??)@9 RIT/∂TX CONTROL [RIT/∂TX] (pgs. ??, ??) Shifts the receive and/or transmit frequency with-out changing the transmit and/or receive frequency shown on the main VFO while the RIT and/or ∂TX functions are/is ON. • Rotate the control clockwise to increase the frequency, or rotate the control counterclockwise to decrease the frequency. The RIT or ∂TX functions must be ON. • The shift frequency range is ±9.999 kHz in 1 Hz steps (or ±9.99 kHz in 10 Hz steps).Low shiftHigh shift61PANEL DESCRIPTION123456789101112131415161718192021
#0 TRANSMIT INDICATOR [TX] Lights red while transmitting.#1 RECEIVE INDICATOR [RX] Lights green while receiving a signal and when the squelch is open.#2 LCD FUNCTION DISPLAY (p. ??) Shows the operating frequency, function switch menus, spectrum scope screen, memory list screen, set mode settings, etc.#3 SPLIT OPERATION INDICATOR [SPLIT] Lights during split frequency operation.#4 MAIN/SUB CHANGE SWITCH [CHANGE] ± Switches the frequency and selected memory channel between main and sub readouts when pushed. • Switches between transmit frequency and receive frequency when the split frequency function is ON. (p. ??) ± Equalizes the sub readout frequency to the main readout frequency when pushed and held for 1 sec.#5 LOCK INDICATOR [LOCK] (p. ??) Lights when the dial lock function is activated.#6 DUALWATCH SWITCH [DUALWATCH] (p. ??) ± Push to turn the dualwatch function ON and OFF. • “ ” appears when the dualwatch function is in use. ± Push and hold for 1 sec. to turn the dualwatch function ON and equalizes the sub readout fre-quency to the main readout. (Quick dualwatch function) • The quick dualwatch function can be turned OFF in others set mode. (p. ??)#7 SPLIT SWITCH [SPLIT] (p. ??) ± Push to turn the split function ON and OFF. • “ ” appears when the split function is in use. ± Push and hold for 1 sec. to activate the quick split function. • The split function ON and equalize the sub readout frequency to the main readout and sets the sub read-out for frequency input in non-FM modes. (p. ??) • The offset frequency is shifted from the selected VFO frequency in FM mode. (p. ??) • The quick split function can be turned OFF in others set mode. (p. ??)#8 KEYPAD ± Pushing a key selects the operating band. (p. ??) • [GEN •] selects the general coverage band. ± Pushing the same key 2 or 3 times calls up other stacked frequencies in the band. (p. ??) • Icom’s triple band stacking register memorizes 3 fre-quencies in each band. ± After pushing [F-INP ENT], push a key on the keypad to enter a numeric frequency. After en-tering, push [F-INP ENT] to select the desired frequency directly (p. ??) • e.g. to enter 14.195 MHz; Push [F-INP ENT] [1] [4] [•] [1] [9] [5] [F-INP ENT]. ± After pushing [F-INP ENT], push a key on the keypad to enter a memory channel. after enter-ing, push [∫]/[√] to select the desired memory channel directly. (p. ??)#9 PBT CLEAR SWITCH [PBT-CLR] (p. ??) Push and hold for 1 sec. to clear the PBT settings. • The indicator on this switch lights green when PBT is in use.N Front panel (continued)TWIN-PBTRIT/ TXӠNOTCHCW PITCHVOICE MEMORYBAL NRAF RF/SQLMIC GAIN RF POWER BK-IN DELAY KEY SPEEDTIMERPHONESELEC-KEYMICAUTOTUNEGENE F-INP1.8 3 .51214518673248289500ENT471021CHANGETSXFCSPLITDUALWATCHMAIN/SUBM.SCOPEVFO/ MEMOMP-WMWMP-RF-6F-5F-4F-3F-2F-1NRNBPBT-CLRAPF/TPFNOTCHPOWERRITCLEARTXӠSPEECHLOCKFILTERREC PLAYEXIT/SETSSB CWRTTY/PSKAM/FMMONITORTRANSMIT TUNERHF/50MHz TRANSCEIVERLOCKTX RX SPLIT$2$3#0 #5#4 #6 #7 #8 $0#9#3#2#1$1$4$571PANEL DESCRIPTION
$0 PASSBAND TUNING CONTROLS [TWIN-PBT] (p. ??) Adjusts the receiver’s IF filter “passband width” via the DSP. • Passband width and shift frequency are displayed in the multi-function display. • Push and hold [PBT-CLR] for 1 sec. to clear the PBT settings. • Adjustment range is set to half of the IF filter passband width. 25 Hz steps and 100 Hz steps are available. What is the PBT control?The PBT function electronically modifies the IF passband width to reject interference. This transceiver uses the DSP circuit for the PBT function.PBT1PBT2–+Low cutHigh cut Center$1 NOTCH SWITCH [NOTCH] (p. ??) ± Switches the notch function between auto, man-ual and OFF in SSB and AM modes. ± Turns the manual notch function ON and OFF when pushed in CW, RTTY and PSK mode. ± Turns the auto notch function ON and OFF when pushed in FM mode. • “ ” appears when manual notch is in use. • “ ” appears when auto notch is in use. • No indicator appears when the notch function is not in use. ± Push and hold for 1 sec. to switch the manual notch characteristics from wide, middle and nar-row when manual notch function is activated. • The indicator on this switch lights green when the function is activated. What is the notch function?The notch function is a narrow filter that eliminates un-wanted CW or AM carrier tones while preserving the de-sired voice signal. The DSP circuit automatically adjusts the notch frequency to effectively eliminate unwanted tones.$2 ∂TX SWITCH [∂TX] (p. ??) ± Push to turn the ∂TX function ON and OFF. • Use [RIT/∂TX] control to vary the ∂TX frequency. ± Push and hold for 1 sec. to add the ∂TX shift frequency to the operating frequency. What is the ∂TX function?∂TX shifts the transmit frequency without shifting the re-ceive frequency. This is useful for simple split frequency operation in CW, etc.$3 CLEAR SWITCH [CLEAR] (pgs. ??, ??) Push or push and hold for 1 sec.* to clear the RIT/∂TX shift frequency. * Depending on the quick RIT/∂TX clear function setting (p. ??).$4 TRANSMIT FREQUENCY CHECK SWITCH [XFC] (p. ??) Monitors the transmit frequency (including ∂TX fre-quency offset) when pushed and held during split frequency operation. • While pushing and holding this switch, the transmit frequency can be changed with the main dial, keypad, memo pad or [∫]/[√] switches. • When the split lock function is turned ON, pushing [XFC] cancels the dial lock function. (p. ??)$5 MAIN/SUB•M.SCOPE SWITCH [MAIN/SUB•M.SCOPE] ± Push to select access to the main or sub read-out. (p. ??) • The selected readout frequency is displayed clearly. The sub readout functions only during split operation or dualwatch. ± Push and hold for 1 sec. to turn the mini spec-trum scope screen indication ON and OFF. (p. ??) • The mini spectrum scope screen can be indicated with another screen, such as memory, set mode screen, simultaneously.81PANEL DESCRIPTION123456789101112131415161718192021
$6 MEMORY UP/DOWN SWITCHES [∫]/[√] (p. ??) ± Push to select the desired memory channel. • Memory channels can be selected both in VFO and memory modes. ± Push to select the desired memory channel di-rectly after pushing [F-INP ENT] and a memory channel number.$7 MEMO PAD-WRITE SWITCH [MP-W] (p. ??) Programs the displayed readout frequency and op-erating mode into a memo pad. • The 5 most recent entries remain in memo pads. • The memo pad capacity can be expanded from 5 to 10 in others set mode. (p. ??)$8 MEMORY WRITE SWITCH [MW] (p. ??) Stores the selected readout frequency and operat-ing mode into the displayed memory channel when pushed and held for 1 sec. • This function is available both in VFO and memory modes.$9 MEMO PAD-READ SWITCH [MP-R] (p. ??) Each push calls up a frequency and operating mode in a memo pad. The 5 (or 10) most recently programmed frequencies and operating modes can be recalled, starting from the most recent. • The memo pad capacity can be expanded from 5 to 10 in others set mode. (p. ??)%0 VFO/MEMORY SWITCH [VFO/MEMO] ± Switches the selected readout operating mode between the VFO and memory when pushed. (pgs. ??, ??) ± Transfers the memory contents to VFO when pushed and held for 1 sec. (p. ??)%1 QUICK TUNING SWITCH [TS] ± Turns the quick tuning step ON and OFF. (p. ??) • While the quick tuning indicator, “Z,” is displayed above the frequency indication, the frequency can be changed in programmed kHz steps. • 0.1, 1, 5, 9, 10, 12.5, 20 and 25 kHz steps are avail-able for each operating mode independently. ± When the quick tuning step is ON, push and hold for 1 sec. to enter quick tuning step set mode. (p. ??) ± When the quick tuning step is OFF, push and hold for 1 sec. to turn the 1 Hz tuning step ON and OFF. (p. ??)%2 AUDIO PEAK FILTER/TWIN PEAK FILTER SWITCH [APF/TPF] During CW mode operation (p. ??) ± Push to turn the audio peak filter ON and OFF. • “ ” appears when audio peak filter is in use. ± When the audio peak filter is ON, push and hold for 1 sec. to select the APF passband width from WIDE, MID and NAR or from 320, 160 and 80 Hz depending on APF type setting. During RTTY mode operation (p. ??) ± Push to turn the twin peak filter ON and OFF. • “ ” appears when twin peak filter is in use. • The indicator on this switch lights green when the function is activated.N Front panel (continued)TWIN-PBTRIT/ TXӠNOTCHCW PITCHVOICE MEMORYBAL NRAF RF/SQLMIC GAIN RF POWER BK-IN DELAY KEY SPEEDTIMERPHONESELEC-KEYMICAUTOTUNEGENE F-INP1.8 3 .51214518673248289500ENT471021CHANGETSXFCSPLITDUALWATCHMAIN/SUBM.SCOPEVFO/ MEMOMP-WMWMP-RF-6F-5F-4F-3F-2F-1NRNBPBT-CLRAPF/TPFNOTCHPOWERRITCLEARTXӠSPEECHLOCKFILTERREC PLAYEXIT/SETSSB CWRTTY/PSKAM/FMMONITORTRANSMIT TUNERHF/50MHz TRANSCEIVERLOCKTX RX SPLIT$6%2$7 $8 $9 %0 %1%3%4%591PANEL DESCRIPTION
%3 CW PITCH CONTROL [CW PITCH] (outer control; p. ??) Shifts the received CW audio pitch and the CW side tone pitch without changing the operating fre-quency.Lower frequencyHigher frequency%4 MANUAL NOTCH FILTER CONTROL [NOTCH] (inner control; p. ??) Varies the notch frequency of the manual notch fil-ter to reject an interfering signal while the manual notch function is ON. • Notch filter center frequency: LSB : –1040 Hz to 4060 Hz USB : –1060 Hz to 4040 Hz CW : CW pitch freq. –2540 Hz to CW pitch freq. 2540 Hz AM : –5100 Hz to 5100 HzLower frequencyHigher frequency%5 RIT SWITCH [RIT] (p. ??) ± Push to turn the RIT function ON and OFF. • Use [RIT/∂TX] control to vary the RIT frequency. ± Push and hold for 1 sec. to add the RIT shift fre-quency to the operating frequency. What is the RIT function?The RIT (Receiver Incremental Tuning) shifts the receive frequency without shifting the transmit frequency.This is useful for fine tuning stations calling you off-fre-quency or when you prefer to listen to slightly different-sounding voice characteristics, etc.101PANEL DESCRIPTION123456789101112131415161718192021
q GROUND TERMINAL [GND] (p. ??) Connect this terminal to a ground to prevent electri-cal shocks, TVI, BCI and other problems.w ANTENNA CONNECTOR 1 [ANT1]e ANTENNA CONNECTOR 2 [ANT2] (pgs. ??, ??) Accept a 50 ø antenna with a PL-259 plug connec-tor. When using an optional AH-4 HF/50 MHz AUTO-MATIC ANTENNA TUNER, connect it to the [ANT1] connector. The internal antenna tuner activates for [ANT2] and deactivates for [ANT1] when con-necting the AH-4.r DC POWER SOCKET [DC 13.8V] (p. ??) Accepts 13.8 V DC through the supplied DC power cable.Rear panel viewt EXTERNAL SPEAKER JACK [EXT-SP] (p. ??) Connects an external speaker (4–8 ø), if desired.y CI-V REMOTE CONTROL JACK [REMOTE] (pgs. ??, ??) ± Connects a PC via the optional CT-17 CI-V LEVEL CONVERTER for external control of the transceiver. ± Used for transceive operation with another Icom CI-V transceiver or receiver.u USB (Universal Serial Bus) CONNECTOR (B type) [USB] (B) Connect an USB cable to be used for the modula-tion input (p. ??), the transceiver operation with PC and the received audio import to the PC. CAUTION: For Windows® XP/2000:NEVER install the USB driver into the PC before connecting the transceiver and PC using with an USB cable.For Windows Vista™:NEVER connect a PC using with an USB cable until the USB driver installation has been com-pleted. About the USB driver: Icom HP (http://www.icom.co.jp/world/support/index.html) gives the USB driver and the installa-tion guide download service. The following items are required: PC • Microsoft® Windows® XP/2000 or Microsoft® Windows Vista™ installed • With USB port Other items • USB cable (third party’s) • PC software About the modulation input: Select “USB” in the ACC set mode item ‘DATA OFF MOD,’ ‘DATA1 MOD,’ ‘DATA2 MOD’ or ‘DATA3 MOD.’ And the modulation input level from USB jack can be set in the ACC set mode item ‘USB MOD Level.’ (p. ??)N Rear panel12ANT DC 13.8VX-VERTERRX-ANTACCTUNERIN OUT ALC SEND KEY12METERREMOTE EXT-SPqw retyo!0!1!2!7 !6 !5 !4 !3 iu111PANEL DESCRIPTION
i METER JACK [METER] (p. ??) Outputs a signal showing received signal strength, transmit output power, VSWR, ALC, speech com-pression, VD or ID level for external meter indica-tion.o STRAIGHT KEY JACK [KEY] (p. ??) Accepts a straight key or external electronic keyer with 1⁄4 inch standard plug. • [ELEC-KEY] on the front panel can be used for a straight key or external electronic keyer. Deactivate the internal electronic keyer in keyer set mode. (p. ??)(+)(_)!0 ACCESSORY SOCKET 1 [ACC 1] !1 ACCESSORY SOCKET 2 [ACC 2] Enable connection of external equipment such as a linear amplifier, an automatic antenna selector/ tuner, a TNC for data communications, etc. • See p. ?? for socket information.!2 TUNER CONTROL SOCKET [TUNER] (p. ??) Accepts the control cable from an optional AH-4 HF/50 MHz AUTOMATIC ANTENNA TUNER.!3 SEND CONTROL JACK [SEND] (p. ??) Connects to ground when transmitting to control an external unit, such as a non-Icom linear amplifier. NOTE: T/R control voltage and current must be lower than 16 V DC/0.5 A (or 250 V AC, 200 mA with MOSFET switching).!4 ALC INPUT JACK [ALC] (p. ??) Connects to the ALC output jack of a non-Icom lin-ear amplifier.!5 RECEIVE ANTENNA IN [RX ANT– IN]!6 RECEIVE ANTENNA OUT [RX ANT– OUT] Located between the transmit/receive switching cir-cuit and receiver’s RF stage. Connects an external unit, such as preamplifier or RF filter, using RCA connectors, if desired. In this case, the antenna connector must be se-lected as “ANT 1/R” or “ANT 2/R.” (p. ??) • When no external unit is connected, “ANT 1” or “ANT 2” must be selected.TransmitterIN[RX ANT]OUTTransmit/Receiveswitching circuitANTReceiver!7 TRANSVERTER CONNECTOR [X-VERTER] (p. ??) External transverter input/output connector. Activated by voltage applied to [ACC 2] pin 6, or when the transverter function is in use. (p. ??)121PANEL DESCRIPTION123456789101112131415161718192021
q S/RF METER (pgs. ??, ??) Shows the signal strength while receiving. Shows the relative output power, SWR, ALC, VD, ID or compression levels while transmitting. • A total of 3 meter types are available.• Standard meter• Edgewise meter• Bar meterw IF FILTER INDICATOR (p. ??) Shows the selected IF filter number.e QUICK TUNING INDICATOR (p. ??) Appears when the quick tuning step function is in use.r BAND WIDTH INDICATOR (p. ??) Shows the passband width of the IF filter.t SHIFT FREQUENCY INDICATOR (p. ??) Shows the shift frequency of the IF filter.y PASSBAND WIDTH INDICATOR (p. ??) Graphically displays the passband width for twin PBT operation and center frequency for IF shift op-eration.u BANDPASS FILTER INDICATOR Appears when the narrow filter (500 Hz or less) is selected during CW, RTTY or PSK operation.i CLOCK READOUT Shows the current time. Local and UTC time can be indicated at the same time.N LCD displayqtyuirewo!4!3!2!1ew!0!6 !5!2!3!7!5!8!0!1!9@0 @2 @3@1@4131PANEL DESCRIPTION
o RTTY TUNING INDICATOR Shows the tuning condition in RTTY mode.!0 MODE INDICATOR Shows the selected mode.!1 FREQUENCY READOUTS Shows the operating frequency. • Gray characters are used for non-active readout.!2 MEMORY CHANNEL READOUTS ± Shows the selected memory channel contents in VFO mode. ± Shows the VFO contents in memory mode.!3 SELECT MEMORY CHANNEL INDICATOR (p. ??) Indicates the displayed memory channel is set as a select memory channel.!4 MULTI-FUNCTION SCREEN Shows the screens for the multi-function digital meter, spectrum scope, voice recorder, memory list, scan, memory keyer, RTTY decoder, PSK decoder, IF filter selection or set modes, etc.!5 VFO/MEMORY CHANNEL INDICATOR (p. ??) Indicates the VFO mode or selected memory chan-nel number.!6 LCD FUNCTION SWITCH GUIDE Indicates the function of the LCD function switches ([F-1] to [F-6]).!7 MULTI-FUNCTION SWITCH GUIDE Indicates the function of the multi-function switches.!8 TX INDICATOR Indicates the frequency readout for transmit. • “ ” appears during an operating frequency is not in an amateur band. When the band edge warning beep is set to “OFF” (p. ??), “ ” does not appear. • Appears on the sub band readout when the split func-tion is turned ON.!9 RIT INDICATOR “ ” appears when RIT function is in use.@0 ∂TX INDICATOR “ ” appears when ∂TX function is in use.@1 RIT/∂TX SHIFT FREQUENCY INDICATOR Shows the shift frequency for the RIT or ∂TX func-tion.@2 NOTCH INDICATOR (p. ??) ± “ ” appears when the manual notch function is in use. This function is available in SSB, CW, RTTY, PSK and AM modes. ± “ ” appears when the auto notch function is in use. This function is available in SSB, AM and FM modes.@3 APF/TPF INDICATOR ± “ ” appears when the audio peak filter func-tion is in use. This function is available in CW mode. (p. ??) ± “ ” appears when the twin peak filter func-tion is in use. This function is available in RTTY mode. (p. ??)@4 DUAL WATCH INDICATOR “ ” appears when the dualwatch function is in use.141PANEL DESCRIPTION123456789101112131415161718192021
The following screens can be selected from the start up screen. Choose the desired screen using the fol-lowing chart.Pushing [EXIT/SET] several times returns to the start up screen. See p. ?? for set mode arrangement.• Spectrum scope screen (p. ??)• Voice recorder screen (p. ??)• RTTY decoder screen (RTTY mode; p. ??)• Memory keyer screen (CW mode; p. ??)• Memory list screen (p. ??)• PSK decoder screen (PSK mode; p. ??)• Scan screen (VFO mode; p. ??)• Scan screen (Memory mode; p. ??)• Set mode menu screen (p. ??)F-1 F-2 F-3 F-3F-4F-5F-2F-5F-3F-6F-3F-4 F-5 F-6N Screen menu arrangement151PANEL DESCRIPTION
N UnpackingAfter unpacking, immediately report any damage to the delivering carrier or dealer. Keep the shipping cartons.For a description and a diagram of accessory equip-ment included with the IC-7600, see ‘Supplied acces-sories’ on p. ?? of this manual.N Selecting a location Select a location for the transceiver that allows ade-quate air circulation, free from extreme heat, cold, or vibrations, and away from TV sets, TV antenna ele-ments, radios and other electromagnetic sources. The base of the transceiver has adjustable feet for desktop use. Set the feet to one of two angles depend-ing on your operating preference.N Grounding To prevent electrical shock, television interference (TVI), broadcast interference (BCI) and other prob-lems, ground the transceiver through the GROUND terminal on the rear panel.For best results, connect a heavy gauge wire or strap to a long ground rod. Make the distance between the [GND] terminal and ground as short as possible.R WARNING: NEVER connect the [GND] terminal to a gas or electric pipe, since the connec-tion could cause an explosion or electric shock.[GND]N Antenna connection For radio communications, the antenna is of critical im-portance, along with output power and receiver sensi-tivity. Select antenna(s), such as a well-matched 50 ø antenna, and feedline. We recommend 1.5:1 or better of Voltage Standing Wave Ratio (VSWR) on your oper-ating bands. The transmission line should be a coaxial cable.When using a single antenna, use the [ANT1] connec-tor.CAUTION: Protect your transceiver from lightning by using a lightning arrestor.PL-259 CONNECTOR INSTALLATION EXAMPLE30 mm10 mm (soft solder)10 mm1–2 mmsolder solderSoftsolderCoupling ringSlide the coupling ring down. Strip the cable jacket and soft solder.Slide the connector body on and solder it.Screw the coupling ring onto the connec-tor body.Strip the cable as shown at left. Soft sol-der the center con-ductor.qwer30 mm (9⁄8 in) 10 mm (3⁄8 in) 1–2 mm (1⁄16 in)Antenna SWREach antenna is tuned for a specified frequency range and SWR may be increased out-of-range. When the SWR is higher than approx. 2.0:1, the transceiver’s power drops to protect the final tran-sistors. In this case, an antenna tuner is useful to match the transceiver and antenna. Low SWR allows full power for transmitting. The IC-7600 has an SWR meter to monitor the antenna SWR continuously.216INSTALLATION AND CONNECTIONS123456789101112131415161718192021
N Required connectionsD Front panelTWIN-PBTRIT/ TXӠNOTCHCW PITCHVOICE MEMORYBAL NRAF RF/SQLMIC GAIN RF POWER BK-IN DELAY KEY SPEEDTIMERPHONESELEC-KEYMICAUTOTUNEGENE F-INP1.8 3.51214518673248289500ENT471021CHANGETSXFCSPLITDUALWATCHMAIN/SUBM.SCOPEVFO/MEMOMP-WMWMP-RF-6F-5F-4F-3F-2F-1NRNBPBT-CLRAPF/TPFNOTCHPOWERRITCLEARTXӠSPEECHLOCKFILTERREC PLAYEXIT/SETSSB CWRTTY/PSKAM/ FMMONITORTRANSMIT TUNERHF/50MHz TRANSCEIVERLOCKTX RX SPLITCW KEYA straight key can be used when the internal electronic keyer is turned OFF in keyer set mode. (p. ??)MICROPHONES (p. ??)SM-50HM-36D Rear panel12ANT DC 13.8VX-VERTERRX-ANTACCTUNERIN OUT ALC SEND KEY12METERREMOTE EXT-SPANTENNA 1, 2 (p. ??)STRAIGHT KEYGROUND (p. ??)Use the heaviest gauge wire or strap available and make the connection as short as possible.Grounding prevents electri-cal shocks, TVI and other problems.DC POWER SUPPLY (p. ??)PS-126ANT1 for 1.8–18 MHz bandsANT 2 for 21–28 MHz bands[Example]:172INSTALLATION AND CONNECTIONS
182INSTALLATION AND CONNECTIONS123456789101112131415161718192021N Advanced connectionsD Front panelTWIN-PBTRIT/ TXӠNOTCHCW PITCHVOICE MEMORYBAL NRAF RF/SQLMIC GAIN RF POWER BK-IN DELAY KEY SPEEDTIMERPHONESELEC-KEYMICAUTOTUNEGENE F-INP1.8 3.51214518673248289500ENT471021CHANGETSXFCSPLITDUALWATCHMAIN/SUBM.SCOPEVFO/MEMOMP-WMWMP-RF-6F-5F-4F-3F-2F-1NRNBPBT-CLRAPF/TPFNOTCHPOWERRITCLEARTXӠSPEECHLOCKFILTERREC PLAYEXIT/SETSSB CWRTTY/PSKAM/ FMMONITORTRANSMIT TUNERHF/50MHz TRANSCEIVERLOCKTX RX SPLITMICUSB-MEMORYThe AFSK modulation signal can also be input to [MIC].HEADPHONESKEYBOARDConnects an USB type PC keyboard directly for RTTY/PSK operation, as well as other text edit operations.D Rear panel— 112ANT DC 13.8VX-VERTERRX-ANTACCTUNERIN OUT ALC SEND KEY12METERREMOTE EXT-SPRX ANT IN/OUTConnects an external preamp or lowpass filter.RX ANT IN/OUT must be activated in the antenna set screen (p. ??).ACC SOCKETS 1, 2(pgs. ??, ??)ANTENNA 1, 2 (p. ??)Connects a linear amplifier, antenna selector, etc.[X-VERTER]Connects a transverter for V/UHF band use.[ALC], [SEND] (p. ??)Used for connecting a non-Icom linear amplifier.EXTERNAL SPEAKER (p. ??)SP-23(option)[REMOTE] (p. ??)Used for computer control and transceive operation. The optional CT-17 is required when connect-ing a PC to [REMOTE].AH-4 (p. ??) AH-2b or long wirewith
D Rear panel— 212ANT DC 13.8VX-VERTERRX-ANTACCTUNERIN OUT ALC SEND KEY12METERREMOTE EXT-SPEXTERNAL KEYPADConnects an external keypad for direct voice memory, keyer memory, RTTY TX memory and PSK TX memory controls.1.5 kø±5%1.5 kø±5%2.2 kø±5%4.7 kø±5%S1(T1/M1)S2(T2/M2)S3(T3/M3)S4(T4/M4)EXTERNAL KEYPAD6.35 (d) mm; 1⁄4" plugMute switch: Mutes both transmis-sion and reception when switched ON during transceive operation, etc.[METER]Connects an external meter, etc.3.5 (d) mm; 1⁄8" plugOutput impedance : 4.7 køOutput voltage (open circuit) : 2.5 V (default)Output voltage can be adjusted 0 to 5 V in ACC set mode. (p. ??)N USB connection Connect the USB-Memory* to the USB connector (A type) on the front panel. • Unmount operation is recommended before removing the USB-Memory* (p.??).Make sure to connect the USB-Memory correctly. NEVER connect or remove the USB-Memory when the read/write indicator lights or blinks.An USB keyboard* or an USB hub* can also be con-nected to the USB connector.* USB-Memory, USB keyboard or USB hub is not supplied by Icom.When the transceiver is connected to PC, an USB cable (third party) should be connected to the USB connector (B type) on the rear panel. (p. ??)or192INSTALLATION AND CONNECTIONS
N Power supply connectionsUse a DC power supply with a 23 A capacity when operating the transceiver with AC power. Refer to the diagrams below.CAUTION: Before connecting the DC power cable, check the following important items. Make sure:• The [POWER] switch is OFF.• Output voltage of the power source is 12–15 V when you use a non-Icom power supply.• DC power cable polarity is correct. Red : Positive + terminal Black : Negative _ terminalCONNECTING A DC POWER SUPPLYA DC power supplyAC outletAC cable30 A fusesSupplied DC power cable13.8 V; at least 23 A_+TransceiverTo DC powersocketGNDBlackRedN External antenna tuner connectionCONNECTING THE AH-4The AH-4 must be connected to [ANT1].Coaxial cable (from the AH-4)[ANT1]Control cableTransceiverGNDAH-4Long wire or optional AH-2b[TUNER]GNDCONNECTING PS-126 DC POWER SUPPLYPS-126DC powercableTo DC power socket TransceiverAC outletAC cableGND202INSTALLATION AND CONNECTIONS123456789101112131415161718192021
N Linear amplifier connectionsD Connecting the IC-PW1/EUROEXCITER11&2To anantenna ACC-1ANTANT2ANT1 ACC 2INPUT1INPUT2REMOTEGNDIC-PW1/EUROAC outlet(Non-European versions : 100–120/220–240 V European version : 230 V)TransceiverREMOTERemote control cable (supplied with the IC-PW1/EURO)ACC cable (supplied with the IC-PW1/EURO)Be sure to connect the cableto the 7-pin ACC 2 jack.Coaxial cable(supplied with the IC-PW1/EURO)Coaxial cable**Purchase separatelyConnect[INPUT2]if necessaryGNDGNDD Connecting a non-Icom linear amplifierRF OUTPUT RF INPUTALCSEND50 øcoaxialcableTransceiverANT1ALC SENDTo an antennaNon-Icom linear amplifierR WARNING: Set the transceiver output power and linear am-plifier ALC output level after referring to the linear amplifier instruction manual. The ALC input level must be in the range 0 V to –4 V. The transceiver does not accept positive volt-age. Non-matched ALC and RF power settings could overheat or damage the linear amplifier. The maximum signal level of [SEND] jack is 16 V/0.5 A DC with initial setting, and 250 V/ 200 mA with “MOSFET” setting (see p. ?? for de-tails). Use an external relay unit if your non-Icom linear amplifier requires control voltage and/or cur-rent greater than specified.212INSTALLATION AND CONNECTIONS
N Transverter jack informationWhen 2 to 13.8 V is applied to pin 6 of [ACC 2], the [X-VERTER] connector is activated for transverter op-eration and the antenna connectors do not receive or transmit any signals.While receiving, the [X-VERTER] connector can be acti-vated as an input terminal from an external transverter.While transmitting, the [X-VERTER] connector outputs signals of the displayed frequency at –20 dBm (22 mV) as signals for the external transverter.N FSK and AFSK (SSTV) connectionsTo connect a TNC or scan converter, etc., refer to the diagram below.D FSK operation— when connecting to [ACC 1]D AFSK operationD When connecting to the [USB] connectorConnect an USB cable (third party’s) between the transceiver’s USB connector [USB] (B) on the rear panel and PC. (p. ??)• Icom HP (http://www.icom.co.jp/world/support/index.html) gives the USB driver and the installation guide download service.Transverter connectorPCRS-232CTNC or scan converter• When using a PC application• When using a TNC12345678Rear panel viewRear panel viewRTTYGNDAFSENDRTTYGNDAFSENDRTTY OUTPUTGNDAUDIO INPUTPTTRTTY OUTPUTGNDAUDIO INPUTPTT12345678Connect to serial port, parallel port, speaker jack, microphone jack and line IN/OUT jack, etc.See the instruction manual of the application for details.Connect to serial port, parallel port, speaker jack, microphone jack and line IN/OUT jack, etc.See the instruction manual of the application for details.• When connecting to [ACC 1]• When connecting to [MIC]• When using a PC application• When using a TNCPCRS-232CTNC or scan converterPTTAudio outputAF inputGNDAFSK outputAF inputGNDPTT*SQL input†*When using the VOX function, no need to connect. Refer to the instruction manual of the external equipment (TNC, etc.).†When connecting the squelch line, consult the necessary manual (TNC, etc.).qwertyui12345678zzxxccvv*zxcvzxcvbbn†n†bn†Rear panel viewRear panel view222INSTALLATION AND CONNECTIONS123456789101112131415161718192021
N Microphone connector information(Front panel view)y GND (PTT ground)t PTTr Main readout squelch switchq Microphone inputw +8 V DC outpute Frequency up/downi Main readout AF output (varies with [AF])GND(Microphone ground)u[MIC]Pin No. FUNCTION DESCRIPTIONw+8 V DC output Max. 10 mAeFrequency up GroundFrequency down Ground through 470 ˘rSquelch open “Low” levelSquelch closed “High” level CAUTION: DO NOT short pin 2 to ground as this can damage the internal 8 V regulator. DC voltage is applied to pin 1 for microphone operation. Use cau-tion when using a non-Icom microphone.N MicrophonesD HM-36D SM-50 (option)qwqwreq UP/DOWN SWITCHES [UP]/[DN] Change the selected readout frequency or memory channel. • Pressing a switch continuously changes the frequency or memory channel number continuously. • While pushing [XFC], the transmit readout frequency can be controlled while in split frequency operation. • The [UP]/[DN] switch can simulate a key paddle. Preset in the keyer set mode. (p. ??)w PTT SWITCH Push and hold to transmit; release to receive.e PTT LOCK SWITCH (available for SM-50 only) Push to toggle between transmit and receive.r LOW CUT SWITCH (available for SM-50 only) Push to cut out the low frequency components of input voice signals.232INSTALLATION AND CONNECTIONS
N Accessory connector informationACC 1PIN No.NAME DESCRIPTION SPECIFICATIONS123456781 RTTY Controls RTTY keying“High” level“Low” levelOutput current: More than 2.4 V: Less than 0.6 V: Less than 2 mA2 GND Connects to ground. Connected in parallel with ACC 2 pin 2.3SENDInput/output pin.Goes to ground when transmitting.When grounded, transmits.Ground levelOutput currentInput current (Tx): –0.5 V to 0.8 V: Less than 20 mA: Less than 200 mAConnected in parallel with ACC 2 pin 3.4 MOD Modulator input.Connects to a modulatorInput impedanceInput level: 10 k˘: Approx. 100 mV rms5AFAF detector output.Fixed, regardless of [AF] position in default settings. (see notes below) Output impedanceOutput level: 4.7 k˘: 100–300 mV rms6 SQLS Squelch output.Goes to ground when squelch opens.SQL openSQL closed: Less than 0.3 V/5 mA: More than 6.0 V/100 μA7 13.8 V 13.8 V output when power is ON. Output current : Max. 1 AConnected in parallel with ACC 2 pin 7.8 ALC ALC voltage input.Control voltageInput impedance: –4 V to 0 V: More than 10 k˘Connected in parallel with ACC 2 pin 5.ACC 2PIN No.NAME DESCRIPTION SPECIFICATIONS12345671 8 V Regulated 8 V output. Output voltageOutput current: 8.0 V ±0.3 V: Less than 10 mA2 GND Same as ACC 1 pin 2.3SENDSame as ACC 1 pin 3.4 BAND Band voltage output.(Varies with amateur band) Output voltage : 0 to 8.0 V5 ALC Same as ACC 1 pin 8.6TRVActivates [X-VERTER] input/output when “HIGH” voltage is applied.Input impedanceInput voltage: More than 10 k˘: 2 to 13.8 V7 13.8 V Same as ACC 1 pin 7.NOTE: If the CW side tone level limit or beep level limit is in use, the CW side tone or beep tone de-creases from the fixed level when the [AF] control is rotated above a specified level. (p. ??)242INSTALLATION AND CONNECTIONS123456789101112131415161718192021
N Before first applying powerBefore first applying power, make sure all connec-tions required for your system are complete by refer-ring to Chapter 2.After all connections have been done, set controls and switches as shown in the figure below.TWIN-PBTRIT/ TXӠNOTCHCW PITCHVOICE MEMORYBAL NRAF RF/SQLMIC GAIN RF POWER BK-IN DELAY KEY SPEEDTIMERPHONESELEC-KEYMICAUTOTUNEGENE F-INP1.8 3 . 51214518673248289500ENT471021CHANGETSXFCSPLITDUALWATCHMAIN/SUBM.SCOPEVFO/MEMOMP-WMWMP-RF-6F-5F-4F-3F-2F-1NRNBPBT-CLRAPF/TPFNOTCHPOWERRITCLEARTXӠSPEECHLOCKFILTERREC PLAYEXIT/SETSSB CWRTTY/PSKAM/FMMONITORTRANSMIT TUNERHF/50MHz TRANSCEIVERLOCKTX RX SPLIT[NOTCH]: 12 o’clock[NR]: Max. CCW[RF POWER]: Max. CW[BK-IN DELAY]: 12 o’clock[KEY SPEED]: 10–12 o’clock[MIC GAIN]: 12 o’clock[BAL]: 12 o’clock[AF]: Max. CCW[RF/SQL]: 12 o’clock[CW PITCH]: 12 o’clock: Max. clockwise: Max. counterclockwiseCWCCWN Applying power (CPU resetting)First applying power:Reset the transceiver using the following procedure. Resetting CLEARS all programmed contents in memory channels and returns programmed values in set mode to default values.q Make sure the transceiver power is OFF.w While pushing and holding [F-INP ENT] and [MW], push [POWER] to turn power ON. • The CPU is reset. • The CPU start-up takes approx. 5 sec. • The transceiver displays its initial VFO frequencies when resetting is complete.e Change the set mode settings after resetting, if desired.Normal applying power:Push [POWER] to turn power ON, then check the dis-play. When any of indicators appear, turn them OFF if necessary. (See the appropriate page for details.)POWER F-INP ENT MW In cooler temperatures, the LCD may appear dark and unstable after turning power ON. This is nor-mal and does not indicate any equipment malfunc-tion.325BASIC OPERATION
N Selecting VFO/memory mode± Push [VFO/MEMO] to switch between VFO and memory modes. • “VFO” appears when in VFO mode, or the selected memory channel number appears when in memory mode. • Pushing and holding [VFO/MEMO] for 1 sec. transfers the contents of the selected memory channel to VFO mode. (p. ??)N Main/Sub band selectionThe IC-7600 has 2 identical receivers, main and sub.The main band is displayed on the left hand side, and the sub band is displayed on the right hand side of the LCD. Some functions can only be applied to the selected band and transmission occurs on the main band (except during split frequency operation).± Push [MAIN/SUB M.SCOPE] to select access to the main or sub readout. • The selected readout frequency is displayed clearly. The sub readout functions only during split operation or dualwatch.D Main/Sub band switching± Push [CHANGE] to switch the frequency and selected memory channel between main and sub readouts. • Switches between transmit frequency and receive fre-quency when the split frequency function is ON. (p. ??)D Main/Sub band equalization± Push and hold [CHANGE] for 1 sec. to equalizes the sub readout frequency to the main readout fre-quency.VFO/MEMOMAIN/SUBM.SCOPEM.SCOPECHANGE“VFO” indicator Memory channel numberAccess to SUB VFOMAIN VFO SUB VFOAccess to MAIN VFOMAIN VFO SUB VFO263BASIC OPERATION123456789101112131415161718192021
N Selecting an operating bandThe triple band stacking register provides 3 memories for each band key, storing frequency and mode infor-mation.This function is convenient when you operate 3 oper-ating modes on one band. For example, one register is used for a CW frequency, another for a SSB fre-quency and the other one for a RTTY frequency.If a band key is pushed once, the frequency and oper-ating mode last used are called up. When the key is pushed again, another stored frequency and operat-ing mode are called up.See the table below for a list of the bands available and the default settings for each band.Band keysBAND REGISTER 1 REGISTER 2 REGISTER 3 1.8 MHz 1.900000 MHz CW 1.910000 MHz CW 1.915000 MHz CW 3.5 MHz 3.550000 MHz LSB 3.560000 MHz LSB 3.580000 MHz LSB 7 MHz 7.050000 MHz LSB 7.060000 MHz LSB 7.020000 MHz CW 10 MHz 10.120000 MHz CW 10.130000 MHz CW 10.140000 MHz CW 14 MHz 14.100000 MHz USB 14.200000 MHz USB 14.050000 MHz CW 18 MHz 18.100000 MHz USB 18.130000 MHz USB 18.150000 MHz USB 21 MHz 21.200000 MHz USB 21.300000 MHz USB 21.050000 MHz CW 24 MHz 24.950000 MHz USB 24.980000 MHz USB 24.900000 MHz CW 28 MHz 28.500000 MHz USB 29.500000 MHz USB 28.100000 MHz CW 50 MHz 50.100000 MHz USB 50.200000 MHz USB 51.000000 MHz FMGeneral 15.000000 MHz USB 15.100000 MHz USB 15.200000 MHz USBD Using the band stacking registers[Example]: 14 MHz bandq Push [14 5], then select a frequency and an oper-ating mode. • A frequency and an operating mode are memorized in the first band stacking register.w Push [14 5] again, then select another frequency and operating mode. • This frequency and operating mode are memorized in the second band stacking register.e Push [14 5] again, then select another frequency and operating mode. • This frequency and operating mode are memorized in the third band stacking register. • When a fourth frequency and operating mode are selected on a band, the first register set in step q, is over written.GENE F-INP1.8 3.51214518673248289500ENT471021273BASIC OPERATION
N Frequency settingThe transceiver has several tuning methods for con-venient frequency tuning.D Tuning with the main dialq Push the desired band key on the keypad 1–3 times. • 3 different frequencies can be selected on each band with the band key. (See previous page “Using the band stacking registers.”)w Rotate the main dial to set the desired frequency.If the dial lock function is activated, the lock indica-tor lights, and the main dial does not function.In this case, push and hold [SPEECH/LOCK] for 1 sec. to deactivate the lock function.When “LOCK/SPEECH” is selected in “[SPEECH/LOCK] Switch” item in others set mode, pushing [SPEECH/LOCK] deactivates the lock function. (see p. ?? for details)D Direct frequency entry with the keypad The transceiver has a keypad for direct frequency entry as described below. q Push [F-INP ENT]. • “ ” indicator appears.w Input the desired frequency. • Push [GENE •] to input “. (decimal point)” between the MHz units and kHz units.e Push [F-INP ENT] to set the input frequency. • To cancel the input, push any other key instead of [F-INP ENT] or keypad.Main dialBand keysKeypad1.8 13.5 2F-INP ENT F-INP ENT 10 4GEN •50 014 51.8 121 7F-INP ENT F-INP ENT 24 8GEN •50 03.5 214 550 0F-INP ENT F-INP ENT GEN •21 718 6 10 4F-INP ENT F-INP ENT GEN •3.5 214 51.8 1F-INP ENT F-INP ENT GEN •14 5F-INP ENT F-INP ENT 21 7[EXAMPLE]14.025 MHz18.0725 MHz706 kHz5.100 MHz7.000 MHz21.280 MHz  21.245 MHz283BASIC OPERATION123456789101112131415161718192021
D About 5 MHz band operation (USA version only)Operation on the 5 MHz band is allowed on 5 discrete frequencies and must adhere to the following:• USB mode• Maximum of 50 watts ERP (Effective Radiated Power)• 2.8 kHz bandwidthIt’s your responsibility to set all controls so that trans-mission in this band meets the stringent conditions under which amateur operations may use these fre-quencies. NOTE: We recommend that you store these fre-quencies, mode and filter settings into memory channels for easy recall.* The FCC specifies center frequencies on the 5 MHz band. However, the IC-7600 displays car-rier frequency. Therefore, tune the transceiver to 1.5 kHz below the specified FCC channel center frequency.D Quick tuning stepThe operating frequency can be changed in larger steps (0.1, 1, 5, 9, 10, 12.5, 20 or 25 kHz selectable) for quick tuning.q Push [TS] to turn the quick tuning function ON. • “Z” appears when the quick tuning function is ON.w Rotate the main dial to change the frequency in programmed kHz steps.e Push [TS] again to turn the quick tuning function OFF. • “Z” disappears.r Rotate the main dial for normal tuning if desired.D Selecting “kHz” step q Push [TS] to turn the quick tuning function ON. • “Z” appears when the quick tuning function ON.w Push and hold [TS] for 1 sec. to enter quick tuning step set mode. • Selected tuning steps for all modes appear.e Select the desired operating mode.r Rotate the main dial to select the desired tuning step. • Push and hold [DEF] (F-4) for 1 sec. to return to the default setting, if desired.t Repeat steps e and r to select quick tuning steps for other modes, if desired.y Push [EXIT/SET] to exit the setting display. NOTE: When entering quick tuning step set mode, the quick tuning function must be activated first. The main and sub bands have independent tuning step settings.IC-7600 DisplayedFrequency*FCC ChannelCenter Frequency*5.33050 MHz 5.33200 MHz5.34650 MHz 5.34800 MHz5.36650 MHz 5.36800 MHz5.37150 MHz 5.37300 MHz5.40350 MHz 5.40500 MHzTo assist you in operating the 5 MHz band within the rules specified by the FCC, transmission is illegal on any 5 MHz band frequency other than the five frequencies indicated in the table above.Main dialTSMain dialTSMode selectionF-4EXIT/SETDEFQuick tuning indicator293BASIC OPERATION
D Selecting 1 Hz stepA minimum tuning step of 1 Hz can be used for fine tuning.q Push [TS] to turn the quick tuning function OFF.w Push and hold [TS] for 1 sec. to turn the 1 Hz tun-ing step ON and OFF.NOTE:• RIT and/or ∂TX also functions in 1 Hz tuning step when used.• The frequency is changed in 50 Hz step when the [UP]/[DN] switches of the microphone are used for the frequency setting (when the programma-ble tuning step is not selected.)D Auto tuning step functionWhen rotating the main dial rapidly, the tuning speed accelerates automatically as selected.q Push [EXIT/SET] several times to close a multi-function screen, if necessary.w Push [SET] (F-6) to select set mode menu screen. • Pushing and holding [EXIT/SET] for 1 sec. also selects set mode menu screen.e Push [OTHERS] (F-5) to enter others set mode.r Push [Y] (F-1) or [Z] (F-2) to select “MAIN DIAL Auto TS.”t Rotate the main dial to select the desired condition from HIGH, LOW and OFF. • HIGH : Approx. 5 times faster when the tun-ing step is set to 1 kHz or smaller steps; approx. 2 times faster when the tuning step is set to 5 kHz or larger steps. • LOW : Approx. 2 times faster • OFF : Auto tuning step is turned OFF.y Push [EXIT/SET] to exit the set mode.D 1⁄4 tuning step functionWhen operating in SSB data, CW, RTTY or PSK, the 1⁄4 tuning function is available. Dial rotation is reduced to 1⁄4 of normal speed when the 1⁄4 tuning function is ON for finer tuning control.± Push [1/4] (MF7) to toggle the 1⁄4 tuning function ON and OFF. • “ ” appears when the 1⁄4 tuning function is ON.TSMain dialF-1 F-2F-6EXIT/SETSETF-5OTHERS1 ⁄ 4¼ tuning step OFF ¼ tuning step ON1 Hz step indicatorHIGH (default)303BASIC OPERATION123456789101112131415161718192021
D Band edge warning beepWhen you tune outside of an amateur band’s fre-quency range, a warning beep sounds.This function can be turned OFF in set mode, if desired.q Push [EXIT/SET] several times to close a multi-function screen, if necessary.w Push [SET] (F-6) to select set mode menu screen. • Pushing and holding [EXIT/SET] for 1 sec. also selects set mode menu screen.e Push [OTHERS] (F-5) to enter others set mode.r Push [Y] (F-1) or [Z] (F-2) to select “Beep (Band Edge).” t Rotate the main dial to select the band edge warn-ing beep function.y Push [EXIT/SET] to exit the set mode.The beep output level can be set in level set mode. (p. ??)When the band edge warning beep is set to “ON”:The band edge warning beep is activated according to the set mode setting as follows.• ON (Default) Band edge beep sounds when an operating frequency enters or exits a default amateur band. (default)• ON (User) A beep sounds when an operating frequency enters or exits an amateur band that is set in band edge screen.• ON (User) & TX Limit A beep sounds when an operating frequency enters or exits an amateur band that is set in band edge screen and transmission is limited out of the band.To programming the band edge:When “ON (User)” or “ON (User) & TX Limit” is selected, [BAND] appears in the display above the function switch (F-5), and up to 30 band edge fre-quencies can be set in band edge screen.q Push [BAND] (F-5) to enter the band edge screen.w Push [Y] (F-1) or [Z] (F-2) to select the desired band edge. • Push [Ω ≈] (F-3) to select the set content for band edge, lower or upper. • Push [INS] (MF6) to insert a new blank band edge line. • Push and hold [DEL] (MF7) for 1 sec. to delete the selected band edge line. • Push and hold [DEF] (F-4) for 1 sec. to display the band edge initialize screen. Then, push and hold [OK] (F-5) to initialize all band edge frequency settings.e Input the desired frequency with the keypad. • Push [GENE •] to input “. (decimal point)” between the MHz units and kHz units. • Program the frequency in ascending order. • The frequency that is duplicated or out of an amateur band cannot be programmed.r Push [EXIT/SET] to exit the set mode.Main dialF-1 F-2F-6EXIT/SETSETF-5OTHERS[DIAL]F-6EXIT/SETSETF-5OTHERSF-1 F-2 F-3 F-4DEF[INS][DEL]BANDNOTE: All 30 band edge frequencies are set in default. So you should delete a one of band edges before programming.ON (User)ON (Default) (default)Band edge screen313BASIC OPERATION
N Operating mode selectionSSB (USB/LSB), SSB data (USB data/LSB data), CW, CW reverse (CW-R), RTTY, RTTY reverse (RTTY-R), PSK, PSK reverse (PSK-R), AM, AM data, FM and FM data modes are available in the IC-7600. Push the desired mode switch momentarily to select a mode of operation.See the diagram as at right for the order of selection.Microphone signals are muted when data mode is selected.• Selecting SSB mode± Push [SSB] to select USB or LSB. • USB is selected first when above 10 MHz; or LSB is selected first when below 10 MHz operation. • After USB or LSB is selected, push [SSB] to toggle between USB and LSB. • After USB or LSB is selected, push and hold [SSB] for 1 sec. to select USB or LSB data mode, respectively. • After USB or LSB data mode is selected, push and hold [SSB] for 1 sec. to select data 1, 2 and 3, in sequence. • In USB or LSB data mode, push [SSB] to return to USB or LSB mode, respectively.• Selecting CW mode± Push [CW] to select CW. • After CW is selected, push [CW] to toggle between CW and CW reverse mode.• Selecting RTTY/PSK mode± Push [RTTY/PSK] to select RTTY or PSK. • After RTTY or PSK is selected, push [RTTY/PSK] to toggle between RTTY and PSK. • After RTTY or PSK is selected, push and hold [RTTY/PSK] for 1 sec. to toggle between RTTY and RTTY reverse, or, PSK and PSK reverse mode, respectively.• Selecting AM/FM mode± Push [AM/FM] to select AM or FM. • After AM or FM is selected, push [AM/FM] to toggle between AM and FM. • After AM or FM is selected, push and hold [AM/FM] for 1 sec. to select AM or FM data mode, respectively. • After AM or FM data mode is selected, push and hold [AM/FM] for 1 sec. to select data 1, 2 and 3, in sequence. • In AM or FM data mode, push [AM/FM] to return to AM or FM mode, respectively.Mode switchesUSBCWAMLSBCW-RRTTY-R RTTY PSK PSK-RFMUSB-D1USB-D2USB-D3LSB-D1LSB-D2LSB-D3AM-D1AM-D2AM-D3FM-D1FM-D2FM-D3SSBCWRTTY/PSKAM/FM: Push mode switch momentary.: Push and hold mode switch for 1 sec.323BASIC OPERATION123456789101112131415161718192021
N Squelch and receive (RF) sensitivityAdjusts the RF gain and squelch threshold level. The squelch removes noise output from the speaker (closed position) when no signal is received.• The squelch is particularly effective for AM and FM. It is also available for other modes.• 12 to 1 o’clock position is recommended for any setting of the [RF/SQL] control.• The control can be set as ‘Auto’ (RF gain control in SSB, CW, RTTY and PSK; squelch control in AM and FM) or squelch control (RF gain is fixed at maximum) in set mode as follows. (p. ??)SET MODE OPERATIONRF+SQL(default)Can be used in all modes.Functions as noise squelch or S-meter squelch in FM modes; S-meter squelch only in other modes.SQL Operates as a squelch control.• RF gain is fixed at maximum sensitivity.AUTOOperates as an RF gain control in SSB, CW, RTTY and PSK modes.• Squelch is fixed open.Operates as a squelch control in AM and FM modes.• RF gain is fixed at maximum sensitivity.M Adjusting RF gain (Receive sensitivity)Normally, [RF/SQL] is set to the 11 o’clock position.Rotate [RF/SQL] to the 11 o’clock position for maxi-mum sensitivity.• Rotating counterclockwise from the maximum position reduces sensitivity.• The S-meter indicates receive sensitivity.M Adjusting squelch (Removing non-signal noise)Rotate [RF/SQL] clockwise when receiving no signal, until the noise just disappears.• [RX] indicator light goes out.• Rotating [RF/SQL] past the threshold point invokes the S-meter squelch— this allows you to set a minimum signal level needed to open the squelch.[RF/SQL]• When setting as RF gain/squelch controlMaximum RF gainS-meter squelchNoise squelch (FM mode)Squelch is open.RF gain adjustablerangeRecommended level• When functioning as RF gain control (Squelch is fixed open; SSB, CW, RTTY only)Minimum RF gainAdjustablerangeMaximum RF gain• When functioning as squelch control (RF gain is fixed at maximum.)Squelch is open.S-meter squelchS-meter squelchthresholdNoise squelch threshold (FM mode)Shallow DeepNoise squelch (FM mode)While rotating the RF gain control, noise may be heard. This comes from the DSP unit and does not indicate an equipment malfunction.333BASIC OPERATION
N Volume setting± Rotate [AF] control clockwise to increase, counter-clockwise to decrease the audio output level.IncreasesDecreasesN Meter indication selectionThe transceiver has 6 transmit meter functions for your convenience.± Push [METER] (MF2) several times to select the desired meter. Indicates the RF output power in watts. Indicates the SWR on the transmission line. Indicates the ALC level. When the meter movement shows the input signal level exceeds the allowable level, the ALC limits the RF power. In such cases, reduce the [MIC GAIN] control. Indicates the compression level when the speech compressor is in use. Indicates the drain current of the final amplifier MOSFETs. Indicates the drain terminal voltage of the final amplifier MOSFETs.D Multi-function digital meterThe IC-7600 can display the multi-function digital meter on the LCD display. This meter displays all transmit parameters simultaneously. q Push and hold [METER] (MF2) for 1 sec. to turn the multi-function digital meter ON.w Push [P-HOLD] (F-1) to toggle the peak level hold function ON. • “ P-HOLD” appears on the window title when the peak level hold function is ON.e Push and hold [METER] (MF2) for 1 sec., or push [EXIT/SET] to turn the multi-function digital meter OFF.[AF]METERSWR readoutALC level readoutF-1P-HOLDMETER“P-HOLD” indicator343BASIC OPERATION123456789101112131415161718192021
D Meter type selectionA total of 3 meter types are available in the IC-7600— Standard, Edgewise and Bar meters. Follow the instructions below for the meter type selec-tion.q Push [EXIT/SET] several times to return to normal screen, if necessary.w Push [SET] (F-6), then push [DISP] (F-3) to select display set mode.e Push [Y] (F-1) or [Z] (F-2) to select “Meter type (Normal Screen)” item.r Rotate the main dial to select the desired meter type from “Standard,” “Edgewise” and “Bar.”t Push [EXIT/SET] to exit display set mode.N Voice synthesizer operationThe IC-7600 has a built-in voice synthesizer to announce the operating frequency, mode* and S-meter* in clear, electronically-generated voice, in English (or Japanese).Select the desired parameters to be announced, such as audio level, speed, language, contents, in the set mode in advance. (pgs. ??, ??)± Push [SPEECH/LOCK] to announce the currently selected frequency and S-meter level*.± Push a mode switch to announce the appropriate mode*.* The S-meter level and operating mode announcements can be deactivated, respectively. (pgs. ??, ??)NOTE: When “LOCK/SPEECH” is selected in [[SPEECH/LOCK] Switch] item in others set mode, pushing and holding [SPEECH/LOCK] activates the voice synthesizer. (p. ??)Main dialF-1 F-2F-6EXIT/SETSETF-3DISP• Edgewise meter• Bar meterSPEECHLOCK353BASIC OPERATION
N Basic transmit operationBefore transmitting, monitor your selected operating frequency to make sure transmitting won’t cause interference to other stations on the same frequency. It’s good amateur practice to listen first, and then, even if nothing is heard, ask “Is the frequency in use?” once or twice, before you begin operating on that frequency.D Transmitting Before transmitting, monitor your selected operat-ing frequency to make sure transmitting won’t cause interference to other stations on the same frequency.q Push [TRANSMIT] or [PTT] (microphone) to trans-mit. • The [TX] indicator lights red.w Push [TRANSMIT] again or release [PTT] (micro-phone) to return to receive. Adjusting the transmit output power± Rotate [RF POWER]. • Adjustable range : 2 W to 100 W (AM mode: 1 W to 30 W)Increasesmax. 100 W(30 W for AM)Decreasesmin. 2 W(1 W for AM)PushD Microphone gain adjustment Before transmitting, monitor your selected operat-ing frequency to make sure transmitting won’t cause interference to other stations on the same frequency.q Push [SSB] to select SSB mode.w Push [METER] (MF2) to select the ALC meter.e Push [PTT] (microphone) to transmit. • Talk into the microphone at your normal voice level.r While talking into the microphone, rotate [MIC GAIN] so that the ALC meter reading doesn’t go outside the ALC zone. (see at right)IncreasesDecreasesPusht Release [PTT] (microphone) to return to receive.In addition, the transceiver can display the multi-func-tion digital meter in the LCD, which displays all trans-mit meters simultaneously.[RF POWER]TRANSMIT [TX] indicator[MIC GAIN]METERSSBALC zone363BASIC OPERATION123456789101112131415161718192021
D Drive gain adjustmentThe drive gain is active for all modes other than SSB mode with speech compressor OFF.Before transmitting, monitor your selected operat-ing frequency to make sure transmitting won’t cause interference to other stations on the same frequency.q Push [EXIT/SET] several times to return to normal screen, if necessary.w Push [SET] (F-6), then push [LEVEL] (F-1) to select level set mode.e Push [Y] (F-1) or [Z] (F-2) to select “Drive Gain” item.r Push [METER] (MF2) to select the ALC meter.t Push [PTT] (microphone; SSB with [COMP] ON, AM or FM), key down (CW) or push [TRANSMIT] (RTTY or PSK) to transmit.y While talking into the microphone or keying down, rotate the main dial so that the ALC meter reading is within 30% to 50% of the ALC scale. (p. ??) • Talk into the microphone at your normal voice level.u Release [PTT], stop keying or push [TRANSMIT] again to return to receive.i Push [EXIT/SET] to exit display set mode.Main dialF-1 F-2F-6EXIT/SETSETMETERTRANSMITLEVEL /Drive gain range373BASIC OPERATION
N Functions for CW operationD About CW reverse modeCW-R (CW Reverse) mode uses the opposite side band to receive CW signals.Use when interfering signals are near a desired sig-nal and you want to use CW-R to reduce the interfer-ence.± During CW mode, push [CW] to select CW and CW-R mode.D About CW pitch controlThe received CW audio pitch and CW side tone can be adjusted to suit your preference (from 300 to 900 Hz in 5 Hz steps). This does not change the operating frequency.± Rotate [CW PITCH] to suit your preference. • Adjustable within 300 to 900 Hz in 5 Hz steps.The filter set screen graphically displays the CW pitch operations. (See at right.)D CW side tone functionWhen the transceiver is in receive (and the break-in function is OFF— p. ??) you can listen to the CW side tone without actually transmitting.This allows you to match your transmit frequency exactly to another station’s by matching the audio tone. You can also use the CW side tone (be sure to turn OFF break-in!) to practice CW sending.CW side tone level can be adjusted in level set mode (p. ??).q Push [SET] (F-6), then push [LEVEL] (F-1) to select level set mode.w Push [Y] (F-1) or [Z] (F-2) to select “Side Tone Level” item.e Rotate the main dial to adjust the side tone level. • Side tone level is adjustable within 0 to 100 % in 1% steps.r Push [EXIT/SET] to exit display set mode.Matching the frequency of a transmitted and received signal is called “Zero beat.”PushBFOCW-R mode (USB side)BFODesired signalCW mode (LSB side)Interference Desired signalInterference[CW PITCH]Lower frequencyHigher frequencyMain dialF-1 F-2 F-6 EXIT/SETSETLEVEL /438RECEIVE AND TRANSMIT123456789101112131415161718192021
D APF (Audio Peak Filter) operationThe APF changes the audio frequency response by boosting a particular frequency to enhance a desired CW signal.q During CW mode, push [APF/TPF] to turn the audio peak filter ON and OFF. • “ ” appears in the display and the indicator on this switch lights green when the audio peak filter is ON.w Push and hold [APF/TPF] for 1 sec. several times to select the desired audio filter width. • WIDE, MID and NAR filters, or 320, 160 and 80 Hz fil-ters are available depending on APF type setting in other set mode. (p. ??)The audio filter shape is also selectable from “SOFT” and “SHARP” in others set mode (p. ??).APF/TPF394RECEIVE AND TRANSMIT
404RECEIVE AND TRANSMIT123456789101112131415161718192021N Electronic keyer functionsThe IC-7600 has a number of convenient functions for the built-in electronic keyer that can be accessed from the memory keyer menu.q During CW mode, push [EXIT/SET] several times to return to normal screen, if necessary.w Push [KEYER] (F-3) to select memory keyer screen.e Push [EXIT/SET] to select memory keyer menu screen.r Push [SEND] (F-1), [EDIT] (F-2), [001] (F-3) or [CW KEY] (F-4) to select the desired menu. See the diagram below. • Push [EXIT/SET] to return to the previous display. F-1 F-2 F-4F-3EXIT/SETCW KEYEDITSEND001KEYER /• Memory keyer screen (p. ??)• Memory keyer menu screen• Memory keyer edit screen (p. ??)• Contest number set mode (p. ??)• Keyer set mode screen (p. ??)F-1 F-2 F-3 F-4 F-5 F-6F-1 F-2 F-3 F-4 F-5 F-6F-1 F-2F-3F-4EXIT/SET
D Memory keyer screenPre-set characters can be sent using the keyer send menu. Contents of the memory keyer are set using the edit menu.• Transmittingq During CW mode operation, push [KEYER] (F-3) to select memory keyer screen.w Push [TRANSMIT] to set the transceiver to trans-mit, or set the break-in function ON (p. ??).e Push one of the function keys ([M1] (F-1) to [M4] (F-4)) to send the contents of the memory keyer. • Pushing and holding a function key for 1 sec. or push [REPEAT] (F-6) while sending the contents of the memory keyer to send the contents repeatedly; push any function key except for to cancel the transmission. • The contest serial number counter counts each time the contents are sent. • Push [−1] (F-5) to reduce the contest serial number count by 1 before sending the contents of the memory keyer to a station a second time. • “M1”–“M4” are highlighted while transmitting. • “ ” appears while transmitting repeatedly. • Set the repeat interval of the memory keyer to 1–60 sec. (1 sec. steps). See p. ?? for keyer set mode.r Push [EXIT/SET] twice to return to normal screen.For your informationWhen an external keypad is connected to [KEY] con-nector on the rear panel, or one of [F-1]−[F-4] key of the keyboard that is connected to the [USB] (A) connector on the front panel is pushed, the pro-grammed contents, M1—M4, can be transmitted without selecting the memory keyer screen.See pgs. ??, ?? for details.F-3 F-5EXIT/SET−1KEYERTRANSMITF-4M4F-1M1 —• Memory keyer screen414RECEIVE AND TRANSMIT
D Editing a memory keyerThe contents of the memory keyer memories can be set using the memory keyer edit menu. The memory keyer can memorize and re-transmit 4 CW key codes for often-used CW sentences, contest serial numbers, etc. Total capacity of the memory keyer is 70 charac-ters per memory channel.• Programming contentsq During CW mode operation, push [KEYER] (F-3) to select memory keyer screen.w Push [EXIT/SET] to select memory keyer menu, then push [EDIT] (F-2) to select keyer edit screen. • Memory keyer contents of Channel 1 (M1) is selected.e Push [M1..M4] (F-6) several times to select the desired memory keyer channel to be edited.r Push [ABC] (MF6) or [123] (MF7) or [Symbol] (MF7) to select the character group, then rotate the main dial to select the character, or push the key-pad for number input. • [Symbol] appears when [123] (MF7) is pushed when “123” character group is selected. • Selectable characters (using the main dial);Key selection CharactersA to Z (capital letters)0 to 9 (numbers)/ ? ^ . , @ 1NOTE:“^” is used to transmit a string of characters with no inter-character space. Put “^” before a text string such as ^AR, and the string “AR ” is sent with no space.“1” is used to insert the CW contest serial num-ber. The serial number automatically increments by 1. This function is available only for one memory keyer channel at a time. Memory keyer channel M2 used “1” by default.t Push [Ω] (F-1) or [≈] (F-2) to move the cursor backwards or forwards, respectively. • Pushing [DEL] (F-3) deletes a character and [SPACE] (F-4) inserts a space.y Repeat steps r and t to input the desired char-acters.u Push [EXIT/SET] twice to return to normal screen. For your convenienceWhen a PC keyboard is connected to [USB] (A) con-nector on the front panel, the memory keyer contents can also be edited from the keyboard.F-2F-6EXIT/SETEDITF-3KEYERM1..M4F-1 F-2 F-4 Main dialSymbol ABC123F-3DEL SPACE• Memory keyer edit screen• Example— entered “QSL TU DE JA3YUA TEST” into memory keyer channel 3• Pre-programmed contentsCH ContentsM1CQ TEST CQ TEST DE ICOM ICOM TESTM2 UR 5NN1 BKM3 CFM TUM4 QRZ?424RECEIVE AND TRANSMIT123456789101112131415161718192021
D Contest number set modeThis menu is used to set the contest (serial) number and count-up trigger, etc.• Setting contentsq During CW mode operation, push [KEYER] (F-3) to select memory keyer screen.w Push [EXIT/SET] to select memory keyer menu, then push [001] (F-3) to select contest serial num-ber set mode.e Push [Y] (F-1) or [Z] (F-2) to select the desired set item.r Set the desired condition using the main dial. • Push and hold [DEF] (F-4) for 1 sec. to select the default condition or value.t Push [EXIT/SET] twice to normal screen.• Contest number set mode screenMain dialF-1 F-2 F-4 EXIT/SETF-3KEYER 001/DEF Number Style NormalThis item sets the numbering system used for con-test (serial) numbers— normal or short morse num-bers. Short morse numbers are also referred to as “cut” numbers.• Normal : Does not use short morse numbers (default)• 190ANO : Sets 1 as A, 9 as N and 0 as O.• 190ANT : Sets 1 as A, 9 as N and 0 as T.• 90 NO : Sets 9 as N and 0 as O.• 90 NT : Sets 9 as N and 0 as T. Count Up Trigger M2This selects which of the four memories will con-tain the contest serial number exchange. The count-up trigger allows the serial number to auto-matically increment after each complete serial num-ber exchange is sent.• M1, M2, M3 and M4 can be set. (default: M2) Present Number 001This item shows the current number for the count-up trigger channel set above.• Rotate the main dial to change the number, or push and hold [001CLR] (F-4) for 1 sec. to reset the current number to 001.434RECEIVE AND TRANSMIT
D Keyer set modeThis set mode is used to set the memory keyer repeat time, dash weight, paddle specifications, keyer type, etc.• Setting contentsq During CW mode operation, push [KEYER] (F-3) to select memory keyer screen.w Push [EXIT/SET] to select memory keyer menu, then push [CW KEY] (F-4) to select keyer set mode.e Push [Y] (F-1) or [Z] (F-2) to select the desired set item.r Set the desired condition using the main dial. • Push and hold [DEF] (F-4) for 1 sec. to select the default condition or value.t Push [EXIT/SET] twice to normal screen.Main dialF-1 F-2 F-3 EXIT/SETF-4KEYERCW KEY/DEF• Keyer set mode screen Keyer Repeat Time 2sWhen sending CW using the repeat timer, this item sets the time between transmission.• 1 to 60 sec. in 1 sec. steps can be selected. (default: 2 sec.) Dot/Dash Ratio M2This item sets the dot/dash ratio.Keying weight example: Morse code “K”DASHWeight setting:1:1:3 (default)Weight setting:AdjustedDASHDOT (fixed*)Adjustable range SPACE (fixed*)*SPACE and DOT length can be adjusted with [KEY SPEED] only.• 1:1:2.8 to 1:1:4.5 (in 0.1 steps) can be selected. (default: 1:1:3.0) Rise Time 4msThis item sets the rise time of the transmitted CW envelope.Key actionTx output power• About rise timeRise timeTxRxSet Tx power levelTime0• 2, 4, 6, 8 or 10 msec. can be selected. (default: 4 msec.) Key clicks on nearby frequencies can be generated if the rise time of a CW waveform is too short.Continues to the next page.444RECEIVE AND TRANSMIT123456789101112131415161718192021
D Keyer set mode (continued) Paddle Polarity NormalThis item sets the paddle dot-dash polarity. • Normal and reverse polarity can be selected. Keyer Type ELE-KEYThis item selects the keyer type for [ELEC-KEY] connector on the front panel.• ELEC-KEY, BUG-KEY and Straight key can be selected. (default: ELEC-KEY) Mic Up/Down Keyer OFFThis item allows you to set the microphone [UP]/[DN] keys to be used as a paddle.• ON : [UP]/[DN] keys can be used for CW.• OFF : [UP]/[DN] keys cannot be used for CW.NOTE: When “ON” is selected, the frequency and memory channel cannot be changed using the [UP]/[DN] keys.454RECEIVE AND TRANSMIT
N RTTY (FSK) operationA DSP-based high-quality Baudot RTTY encoder/decoder is built-in to the IC-7600. When connecting a PC keyboard (p. ??), RTTY operation can be per-formed without an external RTTY terminal, TNC or PC.If you would rather use your RTTY terminal or TNC, consult the manual that comes with the RTTY termi-nal or TNC.q Push a band key to select the desired band.w Push [RTTY/PSK] to select RTTY. • After RTTY mode is selected, push and hold [RTTY/PSK] for 1 sec. to toggle between RTTY and RTTY-R modes. • “RTTY” or “RTTY-R” appears.e Push [DECODE] (F-3) to display the decode screen. • The IC-7600 has a built-in Baudot decoder.r To tune the desired signal, aim for a symmetrical waveform and ensure the peak points align with the mark (2125 Hz) and shift (170 Hz) frequency lines in the FFT scope. • The S-meter indicates received signal strength when signal is received.t Press [F12] on the connected PC’s keyboard to transmit. • [TX] indicator lights red.y Type from the keyboard to enter the contents that you want to transmit. • The typewritten contents are indicated in the TX buffer screen and transmitted immediately. • The text color will be changed when transmitted. • Press one of [F1]–[F8] on the keyboard to transmit the TX memory contents.u Press [F12] on the keyboard to return to receive. For your convenienceThe transmission contents can be typed before being transmitted.q Perform the steps q to r above.w Type from the connected keyboard to enter the message that you want to transmit. • The typewritten contents are indicated in the TX buffer screen.e Press [F12] of the connected keyboard to transmit the typewritten contents. • The color of displayed text, in the TX buffer screen, will be changed when transmitted. • To cancel the transmission, press [F12] twice.r Press [F12] of the keyboard to return to receive.Main dialEXIT/SETF-3[TX]indicator[RX]indicator[AF]Band keysRTTY/PSKDECODEAppears2125/1701905 2515FFT scopeTX buffer screenRX contents screenWater-fall464RECEIVE AND TRANSMIT123456789101112131415161718192021
D About RTTY reverse modeReceived characters are occasionally garbled when the received signal is reversed between Mark and Space tones. This reversal can be caused by incor-rect TNC connections, setting, commands, etc. To receive a reversed RTTY signals correctly, select RTTY-R (RTTY Reverse) mode.± During RTTY mode, push and hold [RTTY/PSK] for 1 sec. to select RTTY and RTTY-R mode. • Check the received signal.D Twin peak filterThe twin peak filter changes the audio frequency response by boosting the mark and space frequen-cies (2125 and 2295 Hz) for better reception of RTTY signals.± During RTTY mode, push [APF/TPF] to turn the twin peak filter ON and OFF. • “ ” appears in the LCD and the indicator on this switch lights green while the filter is in use.NOTE: When the twin peak filter is in use, the received audio output may increase. This is a nor-mal, not a malfunction.Normal ReverseSpace Mark BFO Space MarkBFO170 Hz 2125 Hz 170 Hz2125 HzAPF/TPF474RECEIVE AND TRANSMIT
D Functions for the RTTY decoder indicationq Push a band key to select the desired band.w Push [RTTY/PSK] to select RTTY. • After RTTY mode is selected, push and hold [RTTY/PSK] for 1 sec. to toggle between RTTY and RTTY-R modes. • “RTTY” or “RTTY-R” appears.e Push [DECODE] (F-3) to display the decode screen. • When tuned into an RTTY signal, decoded characters are displayed in the RX contents screen.r Push [HOLD/CLR] (F-2) to freeze the current screen. • “ ” appears while the function is in use. • Push [HOLD/CLR] (F-2) again to cancel the function.t Push [WIDE] (F-6) to toggle the RTTY decode screen size from normal and wide. • S/RF meter type during wide screen indication can be selected in display set mode. (pgs. ??, ??)y Push and hold [HOLD/CLR] (F-2) for 1 sec. to clear the displayed characters. • “ ” indicator disappears at the same time when the hold function is in use.u Push [EXIT/SET] to close the RTTY decode screen.D Setting the decoder threshold levelAdjust the RTTY decoder threshold level if some characters are displayed when no signal is received.q Select the RTTY decode screen as described above.w Push [ADJ] (F-4) to select the threshold level set-ting condition.e Rotate the main dial to adjust the RTTY decoder threshold level. • Push and hold [DEF] (F-5) for 1 sec. to select the default setting.r Push [ADJ] (F-4) to exit from the threshold level setting condition. The UnShift On Space (USOS) function and new line code can be set in the RTTY set mode. (p. ??)EXIT/SETF-3 F-6 Band keysF-2 RTTY/PSKDECODEHOLD/CLRWIDE• Wide screen indication484RECEIVE AND TRANSMIT123456789101112131415161718192021
D RTTY memory transmissionPre-set characters can be sent using the RTTY mem-ory. Contents of the memory are set using the edit menu.q During RTTY mode operation, push [DECODE] (F-3) to select RTTY decode screen.w Push [TX MEM] (F-3) to select RTTY memory screen.e Push [1–4/5–8] (F-6) to select memory bank then push one of the function keys ([RT1] (F-1) to [RT4] (F-4) or [RT5] (F-1) to [RT8] (F-4)). • When no keyboard is connected, the selected memory contents will be transmitted immediately. • When a keyboard is connected, the memory contents will be transmitted immediately when function key is pushed, or transmitted after [F12] on the connected keyboard is pressed, depending on auto transmission/reception setting (see below). • The transmission date, time, reception date and/or time may be displayed in RX contents screen, depending on setting.orF-3 F-6–F-1 F-4RT1 RT4 –F-1 F-4RT5 RT8/DECODE TX MEM 1–4/5–8D Automatic transmission/reception settingq During RTTY mode operation, push [DECODE] (F-3) to select RTTY decode screen.w Push [TX MEM] (F-3) to select RTTY memory screen, then push [EDIT] (F-5) to select RTTY memory edit screen. • RTTY memory contents of the Channel 1 (RT1) is selected.e Push [RT1..RT8] (F-6) several times to select the desired RTTY memory.r Push [AUTO TX] (F-5) several times to select the desired condition as follow. • AUTO TX/RX : Automatically transmits the selected memory and returns to receive after the transmission. • AUTO TX : Automatically transmits the selected memory. To return to receive, press [F12] on the key-board. • AUTO RX : Press [F12] on the keyboard to transmit the selected memory. Automatically returns to receive after the transmission. • No indication : Press [F12] on the keyboard to transmit the selected memory and press [F12] again to return to receive.t Push [EXIT/SET] to exit RTTY memory edit condi-tion. NOTE: The transceiver always functions in the “AUTO TX/RX” setting when no keyboard is con-nected. EXIT/SETF-3 F-6F-5/DECODE TX MEMAUTO TXEDIT /RT1..RT8494RECEIVE AND TRANSMIT
D Editing RTTY memoryThe contents of the RTTY memories can be set using the memory edit menu. The memory can store and re-transmit 8 RTTY message for often-used RTTY information. Total capacity of the memory is 70 char-acters per memory channel.• Programming contentsq During RTTY mode operation, push [DECODE] (F-3) to select RTTY decode screen.w Push [TX MEM] (F-3) to select RTTY memory screen, then push [EDIT] (F-5) to select RTTY memory edit screen. • RTTY memory contents of the Channel 1 (RT1) is selected.e Push [RT1..RT8] (F-6) several times to select the desired RTTY memory channel to be edited.r Push [ABC] (MF6), [123] (MF7) or [Symbol] (MF7) to select the character group, then rotate the main dial to select the character, or push the keypad for number input. • [Symbol] (MF7) appears when [123] (MF7) is pushed when “123” character group is selected. • Selectable characters (using the main dial);Key selection CharactersA to Z (capital letters)0 to 9 (numbers)! $ & ? " ’ – / . , : ; ( ) ↵t Push [Ω] (F-1) or [≈] (F-2) to move the cursor backwards or forwards, respectively. • Pushing [DEL] (F-3) deletes a character and [SPACE] (F-4) inserts a space.y Repeat steps r and t to input the desired char-acters.u Push [EXIT/SET] to set the contents and exit RTTY memory edit screen.  For your convenience When a PC keyboard is connected to [USB] con-nector on the front panel, the RTTY memory con-tents can also be edited from the keyboard.EXIT/SETF-3 F-6F-5/DECODE TX MEMEDITRT1..RT8F-1 F-2 F-4 Main dialSymbol ABC123F-3DEL SPACE• RTTY memory edit screen• Pre-programmed contentsCH ContentsRT1 ↵DE ICOM ICOM K↵RT2 ↵DE ICOM ICOM ICOM K↵RT3 ↵QSL UR 599–599 BK↵RT4 ↵QSL DE ICOM ICOM UR 599–599 BK↵RT5 ↵73 GL SK↵RT6 ↵CQ CQ CQ DE ICOM ICOM ICOM K↵RT7 ↵MY TRANSCEIVER IS IC–7600 & ANTENNA IS A 3–ELEMENT TRIBAND YAGI.↵RT8 ↵MY RTTY EQUIPMENT IS INTERNAL FSK UNIT & DEMODULATOR OF THE IC–7600.↵504RECEIVE AND TRANSMIT123456789101112131415161718192021
D RTTY decode set modeThis set mode is used to set the decode USOS func-tion, time stamp setting, etc.• Setting contentsq During RTTY mode operation, push [DECODE] (F-3) to select RTTY decode screen.w Push [<MENU1>] (F-1) to select the second RTTY decode menu, then push [SET] (F-5) to select RTTY decode set mode. • Push [WIDE] (F-6) to toggle the screen size from nor-mal and wide.e Push [Y] (F-1) or [Z] (F-2) to select the desired set item.r Set the desired condition using the main dial. • Push and hold [DEF] (F-4) for 1 sec. to select a default condition or value. • Push [Ω ≈] (F-3) to select the set contents for some items.t Push [EXIT/SET] to exit from set mode.F-1 F-2 F-4F-3DEFEXIT/SETF-3F-6F-1F-5Main dialDECODE<MENU1>SET WIDE• RTTY decode set mode screen RTTY FFT Scope Averaging OFFSelect the FFT scope waveform averaging function from 2 to 4 and OFF. (default: OFF)Recommendation!If you use the FFT scope waveform for tuning, use of the default or smaller averaging setting is recom-mended.RTTY FFT Scope Waveform Color51 153 255Set the color for the FFT scope waveform.• The color is set in RGB format.• The set color is indicated in the box beside the RGB scale.• Push [Ω ≈] (F-3) to select R (Red), G (Green) and B (Blue), and then rotate the main dial to set the ratio from 0 to 255. RTTY Decode USOS ONTurn the capability of letter code decoding after receiving a “space” (USOS; UnShift On Space func-tion) ON and OFF.• ON : Decode as letter code.• OFF : Decode as character code. RTTY Docode New Line Code CR,LF,CR+LFSelects the new line code of the internal RTTY decoder.CR: Carriage Return, LF: Line Feed• CR,LF,CR+LF : Makes new line with any codes.• CR+LF : Makes new line with CR+LF code only. RTTY Diddle BLANKSelects the diddle condition. • OFF : Turns the diddle function OFF.• BLANK : Transmits blank code during no code transmission.• LTRS : Transmits letter code during no code transmission.514RECEIVE AND TRANSMIT
RTTY TX USOS ONExplicitly inserts the FIGS character even though it is not required by the receiving station.• ON : Inserts FIGS.• OFF : Does not insert FIGS. RTTY Auto CR+LF by TX ONSelects the automatic new line code (CR+LF) trans-mission capability.• ON : Transmits CR+LF code once.• OFF : Transmits no CR+LF code. RTTY Time Stamp ONTurn the time stamp (date, transmission or reception time) indication ON and OFF.• ON : Displays the time stamp.• OFF : No time stamp indication. RTTY Time Stamp (Time) LocalSelects the clock indication for time stamp usage.NOTE: The time won’t be displayed when “OFF” is selected in “RTTY Time Stamp” as above.• Local : Selects the time that set in “Time (Now).”• UTC* : Selects the time that set in “CLOCK2.” * The name of choice may differ according to “CLOCK2 Name” setting (p. ??). “UTC” is the default name of CLOCK2. RTTY Time Stamp (Frequency) OFFSelects the operating frequency indication for time stamp usage.NOTE: The frequency won’t be displayed when “OFF” is selected in “RTTY Time Stamp” as above.• ON : Displays the operating frequency.• OFF : No operating frequency display.RTTY Font Color (Receive)128 255 128Set the text color for received characters.• The color is set in RGB format.• The set color is indicated in the box beside the RGB scale.• Push [Ω ≈] (F-3) to select R (Red), G (Green) and B (Blue), and then rotate the main dial to set the ratio from 0 to 255.RTTY Font Color (Transmit)255 106 106Set the text color for transmitted characters.• The color is set in RGB format.• The set color is indicated in the box beside the RGB scale.• Push [Ω ≈] (F-3) to select R (Red), G (Green) and B (Blue), and then rotate the main dial to set the ratio from 0 to 255.RTTY Font Color (Time Stamp)0155 189Set the text color for time stamp indication.• The color is set in RGB format.• The set color is indicated in the box beside the RGB scale.• Push [Ω ≈] (F-3) to select R (Red), G (Green) and B (Blue), and then rotate the main dial to set the ratio from 0 to 255.RTTY Font Color (TX Buffer)255 255 255Set the text color in the TX buffer screen.• The color is set in RGB format.• The set color is indicated in the box beside the RGB scale.• Push [Ω ≈] (F-3) to select R (Red), G (Green) and B (Blue), and then rotate the main dial to set the ratio from 0 to 255.524RECEIVE AND TRANSMIT123456789101112131415161718192021
D Data savingThe contents of the RTTY memory/received signal can be saved into the USB-Memory.q During RTTY decode screen indication, push [<MENU1>] (F-1) to select the RTTY decode sec-ond menu.w Push [SAVE] (F-4) to select decode file save screen.e Change the following conditions if desired. • File name: z Push [EDIT] (F-4) to select file name edit con-dition. • Push [DIR/FILE] (F-1) several times to select the file name, if necessary. x Push [ABC] (MF6), [123] or [Symbol] (MF7) to select the character group, then rotate the main dial to select the character. • [ABC] (MF6): A to Z (capital letters); [123] (MF7): 0 to 9 (numerals); [Symbol] (MF7): ! # $ % & ’ ` ^ – ( ) { } _ _ @ can be selected. • Push [Ω] (F-1) to move the cursor left, push [≈] (F-2) to move the cursor right, [DEL] (F-3) delete a character and push [SPACE] (F-4) to insert a space. c Push [EXIT/SET] to set the file name. • File format z Push and hold [SAVE/OPT] (F-5) for 1 sec. to enter save option screen. x Rotate the main dial to select the saving for-mat from Text to HTML. • “Text” is the default setting. • Push and hold [DEF] (F-4) for 1 sec. to select the default setting. c Push [EXIT/SET] to return to the previous indication. • Saving location z Push [DIR/FILE] (F-1) to select tree view screen. x Select the desired directory or folder in the USB-Memory. • Push [Ω ≈] (F-4) to select the upper directory. • Push [Y] (F-2) or [Z] (F-3) to select folder in the same directory. • Push and hold [Ω ≈] (F-4) for 1 sec. to select a folder in the directory. • Push [REN] (MF5) to rename the folder. • Push and hold [DEL] (MF6) for 1 sec. to delete the folder. • Push and hold [MAKE] (MF7) for 1 sec. to mak-ing a new folder. (Edit the name with the same manner as the “• File name” above.) c Push [DIR/FILE] (F-1) twice to select the file name.r Push [SAVE/OPT] (F-5). • After saving is completed, returns to RTTY decode sec-ond menu automatically. For your convenience!Two data formats, Text and HTML, are available for PC data storage.The USB-Memory is not supplied by Icom.F-1 F-2 F-4F-3DEL SPACEF-1 F-4 EXIT/SET Main dialSymbol ABC123SAVE EDIT/DIR/FILE<MENU1> /• Decode file save screen— file name editF-4 EXIT/SET Main dialF-5SAVE/OPTDEFF-1 F-5SAVE/OPTF-4F-2 F-3DIR/FILEREN DELMAKE• Save option screenWhen a PC keyboard is connected to [USB] connector on the front panel, the file name can also be edited from the keyboard. In this case, a USB hub is required.534RECEIVE AND TRANSMIT
N PSK operationA high-quality DSP-based PSK encoder/decoder is built-in to the IC-7600. When connecting a PC key-board (p. ??), PSK operation can be performed with-out PSK software installed on your PC.If desired, you can also use your PSK software; con-sult the manual that comes with the software.q Push a band key to select the desired band.w Push [RTTY/PSK] to select PSK. • After PSK mode is selected, push and hold [RTTY/PSK] for 1 sec. to toggle between PSK and PSK-R modes. • “PSK” or “PSK-R” appears.e Push [DECODE] (F-3) to display the decode screen. • The IC-7600 has a built-in PSK decoder.r Tune to the desired signal with the main dial. • The signal is properly tuned when the radiated lines in the vector tuning indicator narrow, as show in the example below. • The radiated lines in the vector tuning indicator may be displayed sporadically. • When a PSK signal is received, the water-fall display is activated. • The water-fall display shows the signals within the pass-band. Received PSK signals appear as vertical lines.t Press [F12] of the connected keyboard to transmit. • [TX] indicator lights red.y Type from the connected keyboard to enter the message that you want to transmit. • The typewritten contents are indicated in the TX buffer screen and transmitted immediately. • The text color will be changed when transmitted. • Press one of [F1]–[F8] to transmit the TX memory con-tents.u Press [F12] of the keyboard to return to receive. For your convenienceThe transmission contents can be typed before being transmitted.q Perform the steps q to r above.w Type from the connected keyboard to enter the message that you want to transmit. • The message is shown in the TX buffer screen.e Press [F12] of the connected keyboard to transmit the message. • The color of displayed text, in the TX buffer screen, will be changed when transmitted. • To cancel the transmission, press [F12] twice.r Press [F12] of the keyboard to return to receive.Main dialEXIT/SETF-3[TX]indicator[RX]indicator[AF]Band keysRTTY/PSKDECODEAppears15001195 1805Vector tuning indicatorFFT scopeTX buffer screenRX contents screenWater-fall• Vector tuning indicator indication exampleTuned BPSK signalBPSK/QPSK idle signal Unmodulated signalTuned QPSK signal544RECEIVE AND TRANSMIT123456789101112131415161718192021
D About BPSK and QPSK modesBPSK and QPSK modes are available for PSK.• BPSK (Binary Phase Shift Keying) mode is the most commonly used mode.• QPSK (Quadrature Phase Shift Keying) mode has error correction capability to provide better decoding than BPSK mode in marginal condition. However, more accurate tuning is required with QPSK mode, due to the tight phase margin of QPSK.q During PSK mode selection, push [DECODE] (F-3) to display the PSK decode screen.w Push [<MENU1>] (F-1) to select PSK decode sec-ond menu.e Push [B/QPSK] (F-2) to toggle between BPSK and QPSK mode alternately.F-2 F-3F-1DECODEB/QPSK<MENU1>• PSK decode screen— BPSK mode• PSK decode screen— QPSK mode554RECEIVE AND TRANSMIT
D Functions for the PSK decoder indicationq Push a band key to select the desired band.w Push [RTTY/PSK] to select PSK. • After PSK mode is selected, push and hold [RTTY/PSK] for 1 sec. to toggle between PSK and PSK-R modes. • “PSK” or “PSK-R” appears.e Push [DECODE] (F-3) to display the decode screen. • When tuned into a PSK signal, decoded characters are displayed in the RX contents screen.r Push [HOLD/CLR] (F-2) to freeze the current screen. • “ ” appears while the function is in use. • Push [HOLD/CLR] (F-2) again to release the function.t Push [WIDE] (F-6) to toggle the PSK decode screen size from normal and wide. • S/RF meter type during wide screen indication can be selected in display set mode. (pgs. ??, ??)y Push and hold [HOLD/CLR] (F-2) for 1 sec. to clear the displayed characters. • “ ” indicator disappears at the same time when the hold function is in use.u Push [AFC/NET] (F-3) to turn the AFC function ON. • “ ” appears. • If a PSK signal is received within the AFC tuning range, the decoder automatically tunes into the signal and the offset frequency is displayed. • The AFC tuning range is set to ±15 Hz as the default. Optional ±8 Hz setting is available in PSK decode set mode. (p. ??)NOTE: The AFC function may not tune the signal properly when a weak PSK signal is received.i Push [AFC/NET] (F-3) again to turn the NET func-tion ON. • “ ” appears additionally.o Push and hold [AFC/NET] (F-3) for 1 sec. to add the offset frequency to the displayed frequency.!0 Push [EXIT/SET] to close the PSK decode screen.D Setting the decoder threshold level Adjust the PSK decoder threshold level if some char-acters are displayed when no signal is received.q Call up the PSK decode screen as described above.w Push [ADJ] (F-4) to select the threshold level set-ting condition.e Rotate the main dial to adjust the PSK decoder threshold level. • Push and hold [DEF] (F-5) for 1 sec. to select the default setting.r Push [ADJ] (F-4) to exit from the threshold level setting condition.EXIT/SETF-3 F-6 Band keysF-2 RTTY/PSKHOLD/CLRWIDE/DECODE AFC/NET• AFC/NET indications“AFC” and “NET”indicatorsOffset frequency564RECEIVE AND TRANSMIT123456789101112131415161718192021
D PSK memory transmissionPre-set characters can be sent using the PSK mem-ory. Contents of the memory are set using the edit menu.q During PSK mode operation, push [DECODE] (F-3) to select PSK decode screen.w Push [TX MEM] (F-3) to select PSK memory screen.e Push [1–4/5–8] (F-6) to select memory bank then push one of the function keys ([PT1] (F1) to [PT4] (F-4) or [PT5] (F-1) to [PT8] (F-4)). • When no keyboard is connected, the selected memory contents will be transmitted immediately. • When a keyboard is connected, the memory contents will be transmitted immediately when function key is pushed, or transmitted after [F12] on the connected keyboard is pressed, depending on auto transmission/reception setting (see below). • The transmission date, time, reception date and/or time may be displayed in RX contents screen, depending on setting.orF-3 F-6–F-1 F-4PT1 PT4 –F-1 F-4PT5 PT8/DECODE TX MEM 1–4/5–8D Automatic transmission/reception settingq During PSK mode operation, push [DECODE] (F-3) to select PSK decode screen.w Push [TX MEM] (F-3) to select PSK memory screen, then push [EDIT] (F-5) to select PSK mem-ory edit screen. • PSK memory contents of Channel 1 (PT1) is selected.e Push [PT1..PT8] (F-6) several times to select the desired PSK memory.r Push [AUTO TX] (F-5) several times to select the desired condition, as follows. • AUTO TX/RX : Automatically transmits the selected memory and returns to receive after the transmission. • AUTO TX : Automatically transmits the selected memory. To return to receive, press [F12] on the key-board. • AUTO RX : Press [F12] on the keyboard to transmit the selected memory. Automatically returns to receive after the transmission. • No indication : Press [F12] on the keyboard to transmit the selected memory and press [F12] again to return to receive.t Push [EXIT/SET] to return to exit from PSK mem-ory edit condition. NOTE: The transceiver always functions in the “AUTO TX/RX” setting when no keyboard is con-nected.EXIT/SETF-3 F-6F-5/DECODE TX MEMAUTO TXEDIT /PT1..PT8574RECEIVE AND TRANSMIT
D Editing PSK memoryThe contents of the PSK memories can be set using the memory edit menu. The memory can store and re-transmit 8 PSK message for often-used PSK infor-mation. Total capacity of the memory is 70 characters per memory channel.• Programming contentsq During PSK mode operation, push [DECODE] (F-3) to select PSK decode screen.w Push [TX MEM] (F-3) to select PSK memory screen, then push [EDIT] (F-5) to select PSK mem-ory edit screen. • PSK memory contents of the Channel 1 (PT1) is selected.e Push [PT1..PT8] (F-6) several times to select the desired PSK memory channel to be edited.r Push [ABC] (MF6), [abc] (MF6), [123] (MF7) or [Symbol] (MF7) to select the character group, then rotate the main dial to select the character, or push the keypad for number input. • [abc] (MF6) appears when [ABC] (MF6) is pushed when “ABC” character group is selected. and [Symbol] (MF7) appears when [123] (MF7) is pushed when “123” character group is selected. • Selectable characters (using the main dial);Key selection CharactersA to Z (capital letters)a to z (small letters)0 to 9 (numbers)! # $ % & ¥ ? " ’ ` ^ + – 1 / . , : ; = < > ( ) [ ] { } ¦ _ _ @ ↵( “↵” is for the memory con-tents setting only.)t Push [Ω] (F-1) or [≈] (F-2) to move the cursor backwards or forwards, respectively. • Pushing [DEL] (F-3) deletes a character and [SPACE] (F-4) inserts a space.y Repeat steps r and t to input the desired char-acters.u Push [EXIT/SET] to set the contents and exit PSK memory edit screen.  For your convenience When a PC keyboard is connected to [USB] con-nector on the front panel, the PSK memory con-tents can also be edited from the keyboard.EXIT/SETF-3 F-6F-5/DECODE TX MEMEDITPT1..PT8F-1 F-2 F-4 Main dialSymbol ABC123F-3DEL SPACEabc• PSK memory edit screen• Pre-programmed contentsCH ContentsPT1 ↵DE Icom Icom K↵PT2 ↵DE Icom Icom Icom K↵PT3 ↵QSL UR 599 599 BK↵PT4 ↵QSL DE Icom Icom UR 599 599 BK↵PT5 ↵73 GL SK↵PT6 ↵CQ CQ CQ DE Icom Icom Icom K↵PT7 ↵My transceiver is IC–7600 & Antenna is a 3–element triband yagi.↵PT8 ↵My PSK equipment is internal modulator & demodulator of the IC–7600.↵584RECEIVE AND TRANSMIT123456789101112131415161718192021
D PSK decode set modeThis set mode is used to set the decode USOS func-tion, time stamp setting, etc.• Setting contentsq During PSK mode operation, push [DECODE] (F-3) to select PSK decode screen.w Push [<MENU1>] (F-1) to select the second PSK decode menu, then push [SET] (F-5) to select PSK decode set mode. • Push [WIDE] (F-6) to toggle the screen size from nor-mal and wide.e Push [Y] (F-1) or [Z] (F-2) to select the desired set item.r Set the desired condition using the main dial. • Push and hold [DEF] (F-4) for 1 sec. to select a default condition or value. • Push [Ω ≈] (F-3) to select the set contents for some items.t Push [EXIT/SET] to exit from set mode.F-1 F-2 F-4F-3DEFEXIT/SETF-3F-6F-1F-5Main dialDECODE<MENU1>SET WIDE PSK FFT Scope Averaging OFFSelect the FFT scope waveform averaging function from 2 to 4 and OFF. (default: OFF)Recommendation!If you use the FFT scope waveform for tuning, using the default or smaller averaging setting is recom-mended.PSK FFT Scope Waveform Color51 153 255Set the color for the FFT scope waveform.• The color is set in RGB format.• The set color is indicated in the box beside the RGB scale.• Push [Ω ≈] (F-3) to select R (Red), G (Green) and B (Blue), and then rotate the main dial to set the ratio from 0 to 255. PSK AFC Range ±15HzSelect the AFC (Automatic Frequency Control) function operating range from ±15 Hz (default) and ±8 Hz.NOTE: The AFC function may not tune the signal properly when a weak PSK signal is received. PSK Time Stamp ONTurn the time stamp (date, transmission or reception time) display ON and OFF.• ON : Displays the time stamp.• OFF : No time stamp display. PSK Time Stamp (Time) LocalSelects the clock display for time stamp usage.NOTE: The time won’t be displayed when “OFF” is selected in “PSK Time Stamp” as above.• Local : Selects the time that set in “Time (Now).”• UTC* : Selects the time that set in “CLOCK2.” * The name of choice may differ according to “CLOCK2 Name” setting (p. ??). “UTC” is the default name of CLOCK2. 594RECEIVE AND TRANSMIT
PSK Time Stamp (Frequency) OFFSelects the operating frequency display for time stamp usage.NOTE: The frequency won’t be displayed when “OFF” is selected in “PSK Time Stamp” as below left.• ON : Displays the operating frequency.• OFF : No operating frequency display.PSK Font Color (Receive)128 255 128Set the text color for received characters.• The color is set in RGB format.• The set color is indicated in the box beside the RGB scale.• Push [Ω ≈] (F-3) to select R (Red), G (Green) and B (Blue), and then rotate the main dial to set the ratio from 0 to 255.PSK Font Color (Transmit)255 106 106Set the text color for transmitted characters.• The color is set in RGB format.• The set color is indicated in the box beside the RGB scale.• Push [Ω ≈] (F-3) to select R (Red), G (Green) and B (Blue), and then rotate the main dial to set the ratio from 0 to 255.PSK Font Color (Time Stamp)0155 189Set the text color for time stamp indication.• The color is set in RGB format.• The set color is indicated in the box beside the RGB scale.• Push [Ω ≈] (F-3) to select R (Red), G (Green) and B (Blue), and then rotate the main dial to set the ratio from 0 to 255.PSK Font Color (TX Buffer)255 255 255Set the text color in the TX buffer screen.• The color is set in RGB format.• The set color is indicated in the box beside the RGB scale.• Push [Ω ≈] (F-3) to select R (Red), G (Green) and B (Blue), and then rotate the main dial to set the ratio from 0 to 255.604RECEIVE AND TRANSMIT123456789101112131415161718192021
D Data savingThe contents of the PSK memory/received signal can be saved into the USB-Memory.q During PSK decode screen indication, push [<MENU1>] (F-1) to select the PSK decode sec-ond menu.w Push [SAVE] (F-4) to select decode file save screen.e Change the following conditions if desired. • File name: z Push [EDIT] (F-4) to select file name edit con-dition. • Push [DIR/FILE] (F-1) several times to select the file name, if necessary. x Push [ABC] (MF6), [123] or [Symbol] (MF7) to select the character group, then rotate the main dial to select the character. • [ABC] (MF6): A to Z (capital letters); [123] (MF7): 0 to 9 (numerals); [Symbol] (MF7): ! # $ % & ’ ` ^ – ( ) { } _ ~ @ can be selected. • Push [Ω] (F-1) to move the cursor left, push [≈] (F-2) to move the cursor right, [DEL] (F-3) delete a character and push [SPACE] (F-4) to insert a space. c Push [EXIT/SET] to set the file name. • File format z Push and hold [SAVE/OPT] (F-5) for 1 sec. to enter save option screen. x Rotate the main dial to select the saving for-mat from Text to HTML. • “Text” is the default setting. • Push and hold [DEF] (F-4) for 1 sec. to select the default setting. c Push [EXIT/SET] to return to the previous indication. • Saving location z Push [DIR/FILE] (F-1) to select tree view screen. x Select the desired directory or folder in the USB-Memory. • Push [Ω ≈] (F-4) to select the upper directory. • Push [Y] (F-2) or [Z] (F-3) to select folder in the same directory. • Push and hold [Ω ≈] (F-4) for 1 sec. to select a folder in the directory. • Push [REN] (MF5) to rename the folder. • Push and hold [DEL] (MF6) for 1 sec. to delete the folder. • Push and hold [MAKE] (MF7) for 1 sec. to mak-ing a new folder. (Edit the name with the same manner as the “• File name” above.) c Push [DIR/FILE] (F-1) twice to select the file name.r Push [SAVE/OPT] (F-5). • After saving is completed, returns to PSK decode sec-ond menu automatically. For your convenience!Two data formats, Text and HTML, are available for PC data storage.The USB-Memory is not supplied by Icom.F-1 F-2 F-4F-3DEL SPACEF-1 F-4 EXIT/SET Main dialSymbol ABC123SAVE EDIT/DIR/FILE<MENU1> /• Decode file save screen— file name editF-4 EXIT/SET Main dialF-5SAVE/OPTDEFF-1 F-5SAVE/OPTF-4F-2 F-3DIR/FILEREN DELMAKE• Save option screenWhen a PC keyboard is connected to [USB] connector on the front panel, the file name can also be edited from the keyboard. In this case, a USB hub is required.614RECEIVE AND TRANSMIT
N Repeater operationA repeater retransmits a received signal on a differ-ent frequency. When using a repeater, the transmit frequency is shifted from the receive frequency by an offset frequency. A repeater can be accessed using split frequency operation with the transmit frequency shifted to the repeater's receive frequency.For accessing a repeater which requires an access tone, set the tone frequency in tone frequency set mode as described below.q Set the offset frequencies (HF, 50 MHz) and turn ON the quick split function in Others set mode in advance. (pgs. ??, ??)w Push [VFO/MEMO] to select VFO mode.e Push the desired band key.r Push [AM/FM] several times to select FM mode.t Set the receive frequency (repeater output fre-quency).y Push and hold [SPLIT] for 1 sec. to start repeater operation. • Repeater tone is turned ON automatically. • [SPLIT] indicator lights and “ ” appears on the LCD. • Shifted transmit frequency and “TX” appear in the sub band. • The transmit frequency can be monitored while push-ing [XFC].u Push and hold [PTT] to transmit; release [PTT] to receive.i To return to simplex, push [SPLIT] momentarily.D Repeater access tone frequency settingSome repeaters require subaudible tones to be accessed. Subaudible tones are superimposed on your normal signal and must be set in advance. The transceiver has 50 tones from 67.0 Hz to 254.1 Hz.q During FM mode operation, push and hold [TONE] (MF7) for 1 sec. to enter tone frequency set mode.w Push [Y] (F-1) or [Z] (F-2) to select REPEATER TONE item.e Rotate the main dial to select the desired repeater tone frequency. • Push and hold [DEF] (F-4) for 1 sec. to select the default setting.r Push [EXIT/SET] to return to the previous indication.• Available tone frequencies (unit: Hz)67.069.371.974.477.079.782.585.4088.5091.5094.8097.4100.0103.5107.2110.9114.8118.8123.0127.3131.8136.5141.3146.2151.4156.7159.8162.2165.5167.9171.3173.8177.3179.9183.5186.2189.9192.8196.6199.5203.5206.5210.7218.1225.7229.1233.6241.8250.3254.1Maindial[SPLIT]indicator Band keysAM/FMSPLITVFO/MEMOXFCAppearsF-4 EXIT/SET Main dialF-2F-1DEFTONE• Tone frequency set mode624RECEIVE AND TRANSMIT123456789101112131415161718192021
N Tone squelch operationThe tone squelch opens only when receiving a sig-nal containing a matching subaudible tone. You can silently wait for calls from group members using the same tone.q Set the desired frequency band and select FM mode.w Push [TONE] (MF7) to turn the tone squelch func-tion ON. • “ ” appearse Push and hold [TONE] (MF7) for 1 sec. to enter tone frequency set mode.r Push [Y] (F-1) or [Z] (F-2) to select T-SQL TONE item.t Rotate the main dial to select the desired tone squelch frequency. • Push and hold [DEF] (F-4) for 1 sec. to select the default setting.y Push [EXIT/SET] to return to the previous indica-tion.u When the received signal includes a matching tone, squelch opens and the signal can be heard. • When the received signal’s tone does not match, tone squelch does not open. However, the S-indicator shows signal strength. • To open the squelch manually, push [XFC].i Operate the transceiver in the normal way.o To cancel the tone squelch, push [TONE] (MF7) to clear “TSQL.”• Available tone frequencies (unit: Hz)67.069.371.974.477.079.782.5085.4088.5091.5094.8097.4100.0103.5107.2110.9114.8118.8123.0127.3131.8136.5141.3146.2151.4156.7159.8162.2165.5167.9171.3173.8177.3179.9183.5186.2189.9192.8196.6199.5203.5206.5210.7218.1225.7229.1233.6241.8250.3254.1F-4 EXIT/SET Main dialF-2F-1DEFTONE XFCAppears• Tone frequency set mode634RECEIVE AND TRANSMIT
N Data mode (AFSK) operationWhen operating AMTOR or PACKET with your TNC and/or PC software, consult the manual that comes with the TNC and/or the software.q Connect a PC and TNC to the transceiver. (p. ??)w Push a band key to select the desired band.e Push [SSB] or [AM/FM] to select the desired oper-ating mode.r Push and hold [SSB] or [AM/FM] that is pushed in step e for 1 sec. to turn data mode ON. • One of “-D1,” “-D2” or “-D3” is additionally appears. • During data mode selection, push and hold [SSB] or [AM/FM] for 1 sec. to select data mode 1 (D1), 2 (D2) and 3 (D3) in sequence.t Rotate the main dial to tune to the desired signal and decode it correctly. • Also use the tuning indicator of the TNC or software. • During SSB data mode, the 1⁄4 tuning function can be used for critical tuning.y Operate the PC (software) or TNC to transmit. • When operating in SSB data mode, adjust the TNC output level so that the ALC meter reading doesn’t go outside the ALC zone.NOTE: When data mode 1 (D1) is selected, the audio input from the [ACC1] (pin 4) is used for transmission instead of [MIC]’s. (Modulation input connector can be changed in ACC set mode (pgs. ??, ??)The fixed condition is used for SSB data transmis-sion as follows:• [COMP] : OFF• Tx bandwidth : MID• Tx Tone (Bass) : 0• Tx Tone (Trebles) : 0 For your informationCarrier frequency is displayed when SSB data mode is selected.See the diagram at right for the tone-pair example.MaindialBand keysAM/FMSSBAppears• Tone-pair example200 Hz 2125 Hz2325 HzCarrier frequency(displayed frequency)644RECEIVE AND TRANSMIT123456789101112131415161718192021
N Spectrum scope screenThis DSP-based spectrum scope allows you to dis-play the frequency and relative signal strength of received signals on the strengths of signals. The IC-7600 has two modes for the spectrum display— one is center mode, and the other is fixed mode.In addition, the IC-7600 has a mini scope screen to save screen space.D Center modeDisplays signals around the set frequency within the selected span. The set frequency is always displayed at the center of the screen.q Push [EXIT/SET] several times to close a multi-function screen, if necessary.w Push [SCOPE] (F-1) to select the scope screen.e Push [CENT/FIX] (F-5) to select the center mode. • “ ” is displayed when center mode is selected.r Push [SPAN] (F-1) several times to select the scope span. • ±2.5, ±5.0, ±10, ±25, ±50, ±100 and ±250 kHz are available. • Push and hold [SPAN] (F-1) for 1 sec. to return to ±2.5 kHz span. • Sweep speed is selectable for each span indepen-dently in scope set mode. (pgs. ??, ??)t Push [ATT] (F-2) several times to activate an attenuator or turn the attenuator OFF. • 10, 20 and 30 dB attenuators are available. • Push and hold [ATT] (F-2) for 1 sec. to turn OFF the attenuator.y Push [MARKER] (F-3) to turn the marker for trans-mit frequency ON or OFF. • “ ” displays the marker at the transmit frequency. • “ ” displays the marker at the sub readout frequency. • “<<” or “>>” appears when the marker is out of range. • The spectrum scope shows the transmit signal while transmitting. This can be deactivated in scope set mode. (p. ??) • The spectrum scope shows the peak level hold func-tion. Peak levels are displayed in the background of the current spectrum in a different color until the receive frequency changes. This can be deactivated and the waveform color can be set in scope set mode. (p. ??)u Push [HOLD] (F-4) to freeze the current spectrum display. • “ ” appears while the function is in use. • The peak hold function can be deactivated in scope set mode. (p. ??)i Push [EXIT/SET] to exit the scope screen.NOTE: If a strong signal is received, a ghost signal may also appear. Push [ATT] (F-2) several times to activate the spectrum scope attenuator in this case.Spurious signals may be displayed. They are gen-erated in the internal scope circuit and do not indi-cate a transceiver malfunction.F-1 F-2 F-3F-5F-4EXIT/SET/SCOPE SPAN AT T MARKERHOLD CENT/FIX• Scope spurious signal exampleSpurious signals may be received on the spectrum scope screen regardless of the transceiver’s state (TX or RX). They are generated in the scope circuit. This does not indicate a transceiver malfunction.Scope spurious example654RECEIVE AND TRANSMIT
D Fixed modeDisplays signals within the specified frequency range. Conditions on the selected frequency band can be observed at a glance when using this mode.q Push [EXIT/SET] several times to close a multi-function screen, if necessary.w Push [SCOPE] (F-1) to select the scope screen.e Push [CENT/FIX] (F-5) to select the fixed mode. • “ ” is displayed when fixed mode is selected.r Push [ATT] (F-2) several times to activate an attenuator or turn the attenuator OFF. • 10, 20 and 30 dB attenuators are available. • Push and hold [ATT] (F-2) for 1 sec. to turn OFF the attenuator.t Push [MARKER] (F-3) several times to select the marker for transmit frequency or turn the marker OFF. • “ ” displays the marker at the transmit frequency. • “ ” displays the marker at the sub readout frequency. • “ ” displays the marker at the main readout fre-quency. (always displayed) • “<<” or “>>” appears when the marker is out of range. • The spectrum scope shows the transmit signal while transmitting. This can be deactivated in scope set mode. (p. ??) • The spectrum scope shows the peak level hold func-tion. Peak levels are displayed in the background of the current spectrum in a different color until the receive frequency changes. This can be deactivated and the waveform color can be set in scope set mode. (p. ??)y Push [HOLD] (F-4) to freeze the current spectrum waveform. • “ ” appears while the function is in use. • The peak hold function can be deactivated in scope set mode.u Push [EXIT/SET] to exit the scope screen.NOTE: If a strong signal is received, a ghost signal may appear. Push [ATT] (F-2) several times to activate the spectrum scope attenuator in this case.The scope bandwidth can be specified for each fre-quency band independently in scope set mode. (pgs. ?? to ??)F-1 F-2 F-3F-5F-4EXIT/SET/SCOPE SPAN AT T MARKERHOLD CENT/FIX664RECEIVE AND TRANSMIT123456789101112131415161718192021
D Mini scope screen indicationThe mini scope screen can be displayed with another screen display, such as set mode menu, decode screen, memory list screen, etc. simultaneously.q Set the scope mode (center or fixed), marker, attenuator, span, etc. in advance. (pgs. ??, ??)w Push and hold [MAIN/SUB M.SCOPE] for 1 sec. to select the mini scope indication. • The S/RF meter type during mini scope indication can be selected in display set mode (Meter Type (Wide Screen) item). (p. ??)D Scope set modeThis set mode is used to set the waveform color, sweeping speed, scope range for fixed mode, etc.q During spectrum scope display ON, push [SET] (F-6) to select scope set mode screen. • Push [WIDE] (F-6) to toggle the screen size between normal and wide.w Push [Y] (F-1) or [Z] (F-2) to select the desired set item.e Set the desired condition using the main dial. • Push and hold [DEF] (F-4) for 1 sec. to select the default condition or value. • Push [Ω ≈] (F-3) to select the set contents for some items.r Push [EXIT/SET] to exit from set mode.MAIN/SUBM.SCOPEM.SCOPEF-1 F-2 F-3 F-4F-6EXIT/SET [DIAL]SETDEF674RECEIVE AND TRANSMIT
D Scope set mode (continued) Scope during Tx (CENTER Type) ONTurn display of the transmit signal ON and OFF. NOTE: Transmit signal display is available for the center mode only. Max Hold ONTurn the peak level hold function ON and OFF. CENTER Type Display Filter CenterSelect the center frequency of the spectrum scope indication (center mode only).• Filter Center : Shows the selected filter’s center frequency at the center.• Carrier Point Center : Shows the selected operating mode carrier point frequency at the center.• Carrier Point Center (Abs. Freq.) : In addition to the carrier point center setting above, the actual frequency is displayed for the bottom of the scope.Waveform Color (Current)217 241 247Set the waveform color for the currently received signals.• The color is set in RGB format.• Push [Ω ≈] (F-3) to select R (Red), G (Green) and B (Blue), and rotate the ratio from 0 to 255 range. • The set color is indicated in the box beside the RGB scale.Waveform Color (Max Hold)58 110 147Set the waveform color for the received signals max-imum level.• The color is set in RGB format.• Push [Ω ≈] (F-3) to select R (Red), G (Green) and B (Blue), and rotate the ratio from 0 to 255 range. • The set color is indicated in the box beside the RGB scale. Sweep Speed (± 2.5k) MIDSelect the sweep speed for the ±2.5 kHz span selec-tion from SLOW, MID and FAST. NOTE: Signals may be displayed incorrectly with “FAST” setting. (± 5k) MIDSelect the sweep speed for the ±5 kHz span selec-tion from SLOW, MID and FAST. NOTE: Signals may be displayed incorrectly with “FAST” setting. (± 10k) FASTSelect the sweep speed for the ±10 kHz span selec-tion from SLOW, MID and FAST.684RECEIVE AND TRANSMIT123456789101112131415161718192021
D Scope set mode (continued) (± 25k) FASTSelect the sweep speed for the ±25 kHz span selec-tion from SLOW, MID and FAST. (± 50k) FASTSelect the sweep speed for the ±50 kHz span selec-tion from SLOW, MID and FAST. (± 100k) FASTSelect the sweep speed for the ±100 kHz span selection from SLOW, MID and FAST. (± 250k) FASTSelect the sweep speed for the ±250 kHz span selection from SLOW, MID and FAST. Fixed Edges ( 0.03 − 1.60) 0.750 − 1.250 MHzSet the scope edge frequencies for fixed mode for bands below 1.6 MHz.• Set the frequencies within 0.030 to 1.600 MHz range in 1 kHz steps. As edge frequencies are set, the other edge fre-quency will be automatically set for a display band width of 5 kHz to a maximum of 500 kHz. ( 1.60 − 2.00) 1.800 − 2.000 MHzSet the scope edge frequencies for fixed mode scope when the 1.6 to 2 MHz band is selected.• Set the frequencies within 1.600 to 2.000 MHz range in 1 kHz steps. ( 2.00 − 6.00) 3.500 − 4.000 MHzSet the scope edge frequencies for fixed mode scope when the 2 to 6 MHz band is selected.• Set the frequencies within 2.000 to 6.000 MHz range in 1 kHz steps. As edge frequencies are set, the other edge fre-quency will be automatically set for a display band width of 5 kHz to a maximum of 500 kHz. ( 6.00 − 8.00) 7.000 − 7.300 MHzSet the scope edge frequencies for fixed mode scope when the 6 to 8 MHz band is selected.• Set the frequencies within 6.000 to 8.000 MHz range in 1 kHz steps. As edge frequencies are set, the other edge fre-quency will be automatically set for a display band width of 5 kHz to a maximum of 500 kHz.694RECEIVE AND TRANSMIT
D Scope set mode (continued) ( 8.00 − 11.00) 10.100 − 10.150 MHzSet the scope edge frequencies for fixed mode scope when the 8 to 11 MHz band is selected.• Set the frequencies within 8.000 to 11.000 MHz range in 1 kHz steps. As edge frequencies are set, the other edge fre-quency will be automatically set for a display band width of 5 kHz to a maximum of 500 kHz. (11.00 − 15.00) 14.000 − 14.350 MHzSet the scope edge frequencies for fixed mode scope when the 11 to 15 MHz band is selected.• Set the frequencies within 11.000 to 15.000 MHz range in 1 kHz steps. As edge frequencies are set, the other edge fre-quency will be automatically set for a display band width of 5 kHz to a maximum of 500 kHz. (15.00 − 20.00) 18.068 − 18.168 MHzSet the scope edge frequencies for fixed mode scope when the 15 to 20 MHz band is selected.• Set the frequencies within 15.000 to 20.000 MHz range in 1 kHz steps. As edge frequencies are set, the other edge fre-quency will be automatically set for a display band width of 5 kHz to a maximum of 500 kHz. (20.00 − 22.00) 21.000 − 21.450 MHzSet the scope edge frequencies for fixed mode scope when the 20 to 22 MHz band is selected.• Set the frequencies within 20.000 to 22.000 MHz range in 1 kHz steps. As edge frequencies are set, the other edge fre-quency will be automatically set for a display band width of 5 kHz to a maximum of 500 kHz. (22.00 − 26.00) 24.890 − 24.990 MHzSet the scope edge frequencies for fixed mode scope when the 22 to 26 MHz band is selected.• Set the frequencies within 22.000 to 26.000 MHz range in 1 kHz steps. As edge frequencies are set, the other edge fre-quency will be automatically set for a display band width of 5 kHz to a maximum of 500 kHz.704RECEIVE AND TRANSMIT123456789101112131415161718192021
D Scope set mode (continued) (26.00 − 30.00) 28.000 − 28.500 MHzSet the scope edge frequencies for fixed mode scope when the 26 to 30 MHz band is selected.• Set the frequencies within 26.000 to 30.000 MHz range in 1 kHz steps. As edge frequencies are set, the other edge fre-quency will be automatically set for a display band width of 5 kHz to a maximum of 500 kHz. (30.00 − 45.00) 30.000 − 30.500 MHzSet the scope edge frequencies for fixed mode scope when the 30 to 45 MHz band is selected.• Set the frequencies within 30.000 to 45.000 MHz range in 1 kHz steps. As edge frequencies are set, the other edge fre-quency will be automatically set for a display band width of 5 kHz to a maximum of 500 kHz. (45.00 − 60.00) 50.000 − 50.500 MHzSet the scope edge frequencies for fixed mode scope when the 45 to 60 MHz band is selected.• Set the frequencies within 45.000 to 60.000 MHz range in 1 kHz steps. As edge frequencies are set, the other edge fre-quency will be automatically set for a display band width of 5 kHz to a maximum of 500 kHz.714RECEIVE AND TRANSMIT
N PreamplifierThe preamp amplifies received signals in the receiver front end, to improve the S/N ratio and sensitivity. Set this to preamp 1 or preamp 2 when receiving weak signals.± Push [P.AMP] (MF3) several times to set the pre-amp OFF, preamp 1 ON or preamp 2 ON.± Push and hold [P.AMP] (MF3) for 1 sec. to turn the preamp function OFF. For all HF bands High-gain preamp for 24 MHz band and above About the “P.AMP2”The “P.AMP 2” is a high gain receive amplifier. When the “P.AMP 2” is used in the presence of strong elec-tromagnetic fields, distortion sometimes results. In such cases, use the transceiver with the “P.AMP 1” or “P.AMP OFF” setting.The “P.AMP 2” is most effective when:• Used on bands above 24 MHz and when signals are weak.• Receive sensitivity is insufficient when using low-gain antennas, or while using a narrow band antenna (such as small loop, a Beverage antenna or a short Yagi antenna).N AttenuatorThe attenuator prevents a desired signal from distor-tion when very strong signals are near the desired frequency or when very strong electromagnetic fields, such as from broadcast stations near your location.± Push [ATT] (MF4) several times to set the attenua-tor 6 dB, 12 dB, 18 dB or attenuator OFF.± Push and hold [ATT] (MF4) for 1 sec. to turn the attenuator function OFF. 6 dB attenuation 12 dB attenuation 18 dB attenuationP.AMPATT724RECEIVE AND TRANSMIT123456789101112131415161718192021
N RIT functionThe RIT (Receive Increment Tuning) function com-pensates for off-frequency operation of the received station.The function shifts the receive frequency up to ±9.99 kHz in 10 Hz steps without moving the trans-mit frequency.q Push [RIT] to turn the RIT function ON and OFF. • “ ” and the shifting frequency appear when the function is ON.w Rotate the [RIT/∂TX] control. • Push and hold [CLEAR] for 1 sec. to reset the RIT fre-quency. • Push [CLEAR] momentarily to reset the RIT frequency when the quick RIT/∂TX clear function is ON. (p. ??) • Push and hold [RIT] for 1 sec. to add the shift fre-quency to the operating frequency.D RIT monitor functionWhen the RIT function is ON, pushing and holding [XFC] allows you to monitor the operating frequency directly (RIT is temporarily cancelled). For your convenience— Calculate functionThe shift frequency of the RIT function can be added/subtracted to the displayed frequency.± While displaying the RIT shift frequency, push and hold [RIT] for 1 sec.[RIT/∂TX]CLEARRITXFCRIT shifting frequency734RECEIVE AND TRANSMIT
N AGC functionThe AGC (auto gain control) controls receiver gain to produce a constant audio output level even when the received signal strength varies greatly.The transceiver has 3 preset AGC characteristics (time constant: fast, mid, slow) for non-FM mode. The FM mode AGC time constant is fixed as ‘FAST’ (0.1 sec.) and AGC time constant cannot be changed.D Selecting the preset valueq Select any non-FM mode.w Push [AGC] (MF5) several times to select AGC fast, AGC medium (MID) or AGC slow.F-4 EXIT/SET [DIAL]DEF[AGC]D Setting the AGC time constant preset valueq Select any non-FM mode.w Push and hold [AGC] (MF5) for 1 sec. to enter AGC set mode.e Push [AGC] (MF5) several times to select FAST time constant.r Rotate the main dial to set the desired time con-stant for ‘AGC FAST.’ • AGC time constant can be set between 0.1 to 8.0 sec. (depends on mode) or turned OFF. • Push and hold [DEF] (F-4) for 1 sec. to select a default value.t Push [AGC] (MF5) to select medium time con-stant.y Rotate the main dial to set the desired time con-stant for ‘AGC MID.’ • AGC time constant can be set between 0.1 to 8.0 sec. (depends on mode) or turned OFF. • Push and hold [DEF] (F-4) for 1 sec. to select a default value.u Push [AGC] (MF5) to select slow time constant.i Rotate the main dial to set the desired time con-stant for ‘AGC SLOW.’ • AGC time constant can be set between 0.1 to 8.0 sec. (depends on mode) or turned OFF. • Push and hold [DEF] (F-4) for 1 sec. to select a default value.o Select another non-FM mode. Repeat steps e to i if desired.!0 Push [EXIT/SET] to exit the AGC set mode screen.• Selectable AGC time constant (unit: sec.)Mode Default Selectable AGC time constantSSB0.3 (FAST) 0.1, 0.2, 0.3, 0.5, 0.8, 1.2, 1.6, 2.0, 2.5, 3.0, 4.0, 5.0, 6.02.0 (MID)6.0 (SLOW)CW0.1 (FAST) 0.1, 0.2, 0.3, 0.5, 0.8, 1.2, 1.6, 2.0, 2.5, 3.0, 4.0, 5.0, 6.00.5 (MID)1.2 (SLOW)RTTYPSK0.1 (FAST) 0.1, 0.2, 0.3, 0.5, 0.8, 1.2, 1.6, 2.0, 2.5, 3.0, 4.0, 5.0, 6.00.5 (MID)1.2 (SLOW)AM3.0 (FAST) 0.3, 0.5, 0.8, 1.2, 1.6, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0, 7.0, 8.05.0 (MID)7.0 (SLOW)FM 0.1 (FAST) Fixed744RECEIVE AND TRANSMIT123456789101112131415161718192021
N Twin PBT operation<MODE> SSB/CW/RTTY/PSK/AMPBT (Passband Tuning) electronically narrows the IF passband width by shifting the IF frequency slightly outside of the IF filter passband to reject interference. The IC-7600 uses DSP for the PBT function. Moving both [TWIN-PBT] controls to the same position shifts the IF both above and below the received frequency.± The LCD shows the passband width and shift fre-quency graphically. • The indicator on the [PBT-CLR] switch lights when PBT is in use.± Push and hold [FILTER] for 1 sec. to enter the filter set screen. Current passband width and shift fre-quency is displayed in the filter set screen.± To set the [TWIN-PBT] controls to the center posi-tions, push and hold [PBT-CLR] for 1 sec.The variable range depends on the passband width and mode. The edge of the variable range is half of the passband width, and PBT is adjustable in 25 (SSB/CW/RTTY/PSK modes) or 100 Hz (AM mode) steps. • The [TWIN-PBT] controls should normally be set to the center positions (PBT setting is cleared) when there is no interference.• When PBT is used, the audio tone may be changed.• Not available for FM mode.• While rotating the [TWIN-PBT] controls, noise may occur. This comes from the DSP unit and does not indicate an equipment malfunction.• PBT operation examplePBT1PBT2PBT1PBT2PBT1PBT2IF center frequency Interference Desired signalPassbandBoth controls at center positionCutting the lower passband edgeCutting both lower and higher passband edgesInterference InterferenceDesired signalPassband[TWIN-PBT]PBT-CLRFILTERShows filter width, shifting value and condition• Filter set screen754RECEIVE AND TRANSMIT
N IF filter selectionThe transceiver has 3 passband width IF filters for each mode.For SSB, CW and PSK modes, the passband width can be set within 50 to 3600 Hz in 50 or 100 Hz steps. A total of 41 passband widths are available. For RTTY mode, the passband width can be set within 50 to 2700 Hz in 50 or 100 Hz steps. A total of 32 passband widths are available.For AM mode, the passband width can be set within 200 Hz to 10 kHz in 200 Hz steps. A total of 50 pass-band widths are available.For FM mode, the passband width is fixed and 3 passband widths are available.The filter selection is automatically memorized in each mode.The PBT shift frequencies are automatically mem-orized in each filter.D IF filter selectionq Select the desired mode.w Push [FILTER] several times to select the IF filter 1, 2 or 3. • The selected passband width and filter number is dis-played in the LCD.D Filter passband width setting (except FM mode)q Push and hold [FILTER] for 1 sec. to enter filter set screen.w Select any mode except FM. • Passband widths for FM modes are fixed and cannot be set.e Push [FILTER] several times to select the desired IF filter.r Rotate the main dial after pushing [BW] (F-1) to set the desired passband width. Then push [BW] (F-1). • In SSB, CW and PSK modes, the passband width can be set within the following range. 50 to 500 Hz 50 Hz steps 600 to 3600 Hz 100 Hz steps • In RTTY mode, the passband width can be set within the following range. 50 to 500 Hz 50 Hz steps 600 to 2700 Hz 100 Hz steps • In AM mode, the passband width can be set within the following range. 200 Hz to 10 kHz 200 Hz steps • Push and hold [DEF] (F-4) for 1 sec. to select a default value.t Repeat steps w to r if desired for other modes.y Push [EXIT/SET] to exit filter set screen.FILTERF-1BWF-4DEFEXIT/SET Main dialSelectedIF filterPassbandwidth The PBT shift frequencies are cleared when the passband width is changed. This filter set screen graphically displays the PBT shift frequencies and CW pitch operations.764RECEIVE AND TRANSMIT123456789101112131415161718192021
D Roofing filter selectionThe IC-7600 has 3, 6 and 15 kHz roofing filters at the 1st IF frequency. The roofing filter provides interfer-ence reduction from nearby strong signals.q Push and hold [FILTER] for 1 sec. to enter filter set screen.w Select any mode except FM.e Push [ROOFING] (F-5] to select the desired filter width from 15 kHz, 6 kHz and 3 kHz. • Push and hold [DEF] (F-4) for 1 sec. to select a default value.r Push [EXIT/SET] to exit filter set screen.D DSP filter shape The type of DSP filter shape for each SSB, SSB data and CW can be selected independently from soft and sharp.q Push and hold [FILTER] for 1 sec. to enter filter set screen.w Select SSB, SSB data or CW mode.e Push [SHAPE] (F-6) to select the desired filter shape from soft and sharp.r Push [EXIT/SET] to exit filter set screen.The filter shape can be set for each band (HF and 50 MHz bands), mode, as well as the passband width setting (CW only) independently from your default setting in filter shape set mode.D Filter shape set modeThe type of DSP filter shape for SSB, SSB data and CW can be selected independently from soft and sharp.q Push and hold [FILTER] for 1 sec. to enter filter set screen.w Push and hold [SHAPE] (F-6) for 1 sec. to enter fil-ter shape set mode.w Select the desired item using [Y] (F-1) or [Z] (F-2).e Rotate the main dial to select the filter shape from soft and sharp. • Push and hold [DEF] (F-4) for 1 sec. to select a default value.t Push [EXIT/SET] to exit filter shape set mode.F-5F-4DEF ROOFINGEXIT/SETFILTER• Filter set screen• Default roofing filter (unit: kHz)Mode FIL1 FIL2 FIL3 Mode FIL1 FIL2 FIL3SSB 15 15 6 RTTY 15 6 6SSB-D 666PSK 666CW 666AM 15 15 15F-1 F-2F-6F-4DEF SHAPEEXIT/SET Main dialFILTER• Filter shape set mode774RECEIVE AND TRANSMIT
D Filter shape set mode (continued) HF SSB (600Hz – ) SHARPSelect the filter shape for SSB mode in HF bands. The set filter shape is automatically used only when the IF filter is set to 600 Hz or wider. SSB-D (600Hz – ) SHARPSelect the filter shape for SSB data mode in HF bands. The set filter shape is automatically used only when the IF filter is set to 600 Hz or wider. CW ( – 500Hz) SHARPSelect the filter shape for CW mode in HF bands. The set filter shape is automatically used only when the IF filter is set to 500 Hz or narrower. CW (600Hz – ) SHARPSelect the filter shape for CW mode in HF bands. The set filter shape is automatically used only when the IF filter is set to 600 Hz or wider. 50M SSB (600Hz – ) SOFTSelect the filter shape for SSB mode in 50 MHz band. The set filter shape is automatically used only when the IF filter is set to 600 Hz or wider. SSB-D (600Hz – ) SHARPSelect the filter shape for SSB data mode in 50 MHz band. The set filter shape is automatically used only when the IF filter is set to 600 Hz or wider. CW ( – 500Hz) SHARPSelect the filter shape for CW mode in 50 MHz band. The set filter shape is automatically used only when the IF filter is set to 500 Hz or narrower. CW (600Hz – ) SHARPSelect the filter shape for CW mode in 50 MHz band. The set filter shape is automatically used only when the IF filter is set to 600 Hz or wider.784RECEIVE AND TRANSMIT123456789101112131415161718192021
N Dualwatch operationDualwatch monitors 2 frequencies simultaneously.During dualwatch, both frequencies should be on the same band, because the bandpass filter in the RF cir-cuit is selected for the main readout frequency.q Set a desired frequency into the main band.w Push and hold [DUALWATCH] for 1 sec. • “ ” appears. • Equalized receive frequency appears on the sub band frequency readout. This quick dualwatch function can be turned OFF in set mode. (p. ??) • Pushing [DUALWATCH] momentarily activates the dualwatch with the previously operated frequency.e Rotate the main dial to set another desired fre-quency.r Push [MAIN/SUB M.SCODE] to enables the sub band access when changing the frequency band, operating mode, etc. in sub band. • Push [MAIN/SUB M.SCODE] again for the main band access.t Adjust the [BAL] control to set a suitable signal strength balance between the main and sub read-out frequencies. • S-meter shows the combined signal strength.y To transmit on the sub readout frequency, push [CHANGE] or [SPLIT].NOTE:• A beat note may be heard depending on the fre-quency combination.• The RIT function can be used for the main read-out only.• The ∂TX function can be used for the transmit readout (main readout when the split function OFF; sub readout when the split function ON).[BAL] controlDUALWATCH SPLITCHANGEMAIN/SUBM.SCOPEM.SCOPEAppears794RECEIVE AND TRANSMIT
• Scanning during dualwatchScanning operates only for the main readout. To operate the scan during dualwatch, scan on the main readout and use the sub readout for your QSO using both dualwatch and split frequency operation.q Program the desired programmed scan edges in the same amateur band. See p. ?? for program-ming. • If you plan to operate a ∂F scan, programming the scan edges may not be necessary.w Push [SPLIT] to turn the split frequency function ON. • “ ” appears.e Select VFO mode for the main readout.r Set the desired operating frequency for the main readout.t Push and hold [DUALWATCH] for 1 sec. • “ ” appears. • The main and sub readout frequencies are equalized and the dualwatch function is turned ON.y Push [SCAN] (F-5) to select the scan screen. • Push [EXIT/SET] several times to close a multi-func-tion screen, if necessary.u Push [PROG] (F-1) or [∂F] (F-2) to start the pro-grammed scan or ∂F scan, respectively. • Scan activates on the main readout between the pro-grammed scan edges or within the ∂F span. • Transmitting on the sub readout stops the scan.i To cancel the scan, push [EXIT/SET].F-1 F-2 F-5 EXIT/SETDUALWATCH SPLITPROG SCAN∂F804RECEIVE AND TRANSMIT123456789101112131415161718192021
N Noise blanker<MODE> SSB/CW/RTTY/PSK/AMThe noise blanker eliminates pulse-type noise such as the noise from car ignitions. The noise blanker is not available for FM mode.± Push [NB] to turn the noise blanker function ON and OFF. • The indicator on this switch lights green when when the noise blanker is ON.When using the noise blanker, received signals may be distorted if they are excessively strong or for other types of noise than impulse. Turn the noise blanker OFF, or set the noise blanker thresh-old level (see below) to a shallow position in this case.D NB set modeTo deal with various type of noise, attenuation level and noise blanking duration can be set in NB set mode.q Push and hold [NB] for 1 sec. to enter NB set mode.w Select the desired item using [Y] (F-1) or [Z] (F-2).e Rotate the main dial to the desired set value or condition. • Push and hold [DEF] (F-4) for 1 sec. to select a default value.r Push [EXIT/SET] to exit NB set mode.F-1 F-2 F-4DEFEXIT/SET Main dialNB• NB set modeNB Level50%Set the noise blanker threshold level from 0% to 100%.NB Depth8Set the noise attenuation level from 1 to 10.NB Width50Set the blanking duration from 1 to 100.814RECEIVE AND TRANSMIT
N Noise reductionThe noise reduction function reduces random noise components and enhances desired signals which are buried in noise. The DSP performs the random noise reduction function.q Push [NR] to turn the noise reduction ON. • The indicator on this switch lights green.w Rotate the [NR] control to adjust the noise reduc-tion level.e Push [NR] to turn the noise reduction OFF. • The indicator goes off.Large rotations of the [NR] control results in audio signal masking or distortion. Set the [NR] control for maximum readability.N Dial lock function The dial lock function prevents frequency changes by accidental movement of the tuning dial. The lock function electronically locks the dial.± Push and hold [SPEECH/LOCK] for 1 sec. to tog-gle the dial lock function ON and OFF. • The [LOCK] indicator lights when the dial lock function is in use.NOTE: When “LOCK/SPEECH” is selected in [[SPEECH/LOCK] Switch] item in others set mode, pushing [SPEECH/LOCK] activates the dial lock function. (p. ??)[NR]controlNRNoise reduction OFF Noise reduction activatedDesired signal (CW)Noise components[LOCK] indicatorSPEECHLOCK824RECEIVE AND TRANSMIT123456789101112131415161718192021
N Notch functionThis transceiver has auto and manual notch func-tions.The auto notch function uses DSP to automatically attenuate up to 3 beat tones, tuning signals, etc., even if they are moving. The manual notch can be set to attenuate a frequency via the [NOTCH] control.The auto notch can be used in SSB, AM and FM mode.The manual notch can be used in SSB, CW, RTTY, PSK and AM modes.± Push [NOTCH] to toggle the notch function between auto, manual and OFF in SSB and AM modes.± Push [NOTCH] to turn the manual notch function ON and OFF in CW, RTTY, PSK modes.± Push [NOTCH] to turn the auto notch function ON and OFF in FM mode. • The indicator on this switch lights green. • When the manual notch function is ON, push and hold [NOTCH] for 1 sec. to select the notch filter width for manual notch from wide, middle and narrow. • Set to attenuate a frequency for manual notch via the [NOTCH] control. • “ ” appears when auto notch is in use. • “ ” appears when manual notch is in use.While tuning the manual notch, noise may be heard. This comes from the DSP unit and does not indicate an equipment malfunction.N Autotune function<MODE> CW/AMThe Automatic tuning function tunes the displayed fre-quency (max. CW: 500 Hz, AM: ±5 kHz) automatically when an off-frequency signal is received. This func-tion is active while in CW or AM mode is selected. ± Push [AUTOTUNE] to toggle the autotune function ON or OFF. • “ ” blinks when autotune function is acti-vated. • After 30 sec. has passed, the autotune function stops tuning automatically even it’s still off-frequency.[NOTCH]controlNOTCH• Auto notch indicationAppears• Manual notch indicationAppearsUnwanted tone frequencyDesired signal (AF)Desired signal (AF)Particular frequencyis attenuatedAuto notch OFF Auto notch ONAUTOTUNEAppears834RECEIVE AND TRANSMIT

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