Icom IC-7700 Manuel d'utilisateur

HF/50 MHz TRANSCEIVERi7700Instruction ManualA-6612H-1EXPrinted in Japan© 2007 Icom Inc.

Fuse replacement …………………………………………………… 13-7 Resetting the CPU …………………………………………………… 13-7 About protection indications ………………………………………… 13-8 Scre

5-12 Twin PBT operationPBT (Passband Tuning) electronically narrows the IFpassband width by shifting the IF frequency slightlyoutside of the IF filte

5-13 IF filter selectionThe transceiver has 3 passband width IF filters foreach mode. For SSB, CW and PSK modes, the passband widthcan be set within

5-14DDRoofing filter selectionThe IC-7700 has 3, 6 and 15 kHz roofing filters at the1st IF frequency. The roofing filter provides interfer-ence reduct

5-15DDFilter shape set mode (continued)5FUNCTIONS FOR RECEIVESelect the filter shape for CW mode in HF bands. The set filter shape is automatical

Noise blankerThe noise blanker eliminates pulse-type noise such asthe noise from car ignitions. The noise blanker is notavailable for FM mode.q Push

5-175FUNCTIONS FOR RECEIVE Noise reductionThe noise reduction function reduces random noisecomponents and enhances desired signals which areburied in

Notch functionThis transceiver has auto and manual notch functions. The auto notch function uses DSP to automatically at-tenuate more than 3 beat to

5-195FUNCTIONS FOR RECEIVE Autotune functionThe Automatic tuning function tunes the displayed fre-quency (max. CW: 500 Hz, AM: ±5 kHz) automaticallyw

6-1FUNCTIONS FOR TRANSMIT Section 6 VOX function …………………………………………………………… 6-2D Using the VOX function …………………………………………… 6-2D Adjusting the VOX funct

1-1PANEL DESCRIPTION Section1 Front panel ……………………………………………………………… 1-2 Rear panel ……………………………………………………………… 1-12 LCD display ………………………………………………………

6-2 VOX functionThe VOX (Voice-Operated Transmission) functionswitches between transmit and receive with your voice.This function provides “hands-fre

6-3 Break-in functionThe break-in function is used in CW mode to automat-ically toggle the transceiver between transmit and re-ceive when keying. The

6-4 ∂∂TX functionThe ∂TX function shifts the transmit frequency up to±9.999 kHz in 1 Hz steps (10 Hz steps when cancellingthe 1 Hz step readout) witho

6-5 Transmit filter width setting (SSB only)The transmit filter width for SSB mode can be selectedfrom wide, middle and narrow.➥ During USB or LSB mo

6-6 Split frequency operationSplit frequency operation allows you to transmit andreceive in the same mode on two different frequencies.Split frequenc

6-7 Quick split functionWhen you find a DX station, an important considera-tion is how to set the split frequency.When you push and hold the switch

7-1VOICE RECORDER FUNCTIONS Section 7 About digital voice recorder …………………………………………… 7-2 Recording a received audio …………………………………………… 7-3D Basic re

7-2 About digital voice recorderThe IC-7700 has digital voice memories, up to 4 mes-sages for transmit, and up to 20 messages for receive. A maximum

7-3 Recording a received audioUp to 20 receive voice memories are available in theIC-7700. A total audio length of up to 209 sec. can berecorded in r

1-2q POWER SWITCH (p. 3-2)➥ Push to turn the transceiver power ON.• The [POWER] indicator above this switch lights greenwhen powered ON.➥ Push and ho

7-4 Playing the recorded audioDDBasic playingq Push several times to close a multi-func-tion screen, if necessary.w Push [F-2•VOICE] to call up the

7-5 Protect the recorded contentsThe protect function is available to protect the recordedcontents from accidental erasure, such as over-writing,etc.

7-6 Recording a message for transmitTo transmit a message using the voice recorder, recordthe desired message in advance as described below.The IC-77

7-7 Programming a memory name Memory messages can be tagged with alphanumericnames of up to 20 characters each.Capital letters, small letters, numera

7-8 Sending a recorded messageq Push several times to close a multi-func-tion screen, if necessary.w Select a phone mode by pushing or .e Push [F-

7-9 Voice set modeSets the automatic monitor function, short play andnormal recording times for voice recorder.q Push several times to close a multi

7-10 Saving a voice message into the USB-MemoryDDSaving the received audio memoryThe recorded RX memory contents can be saved intothe USB-Memory.q Du

8-1MEMORY OPERATION Section8 Memory channels ……………………………………………………… 8-2 Memory channel selection …………………………………………… 8-2D Using the / keys …………………………

8-2 Memory channelsThe transceiver has 101 memory channels. Memorymode is very useful for quickly changing to often-usedfrequencies.All 101 memory ch

8-38MEMORY OPERATION Memory channel programmingMemory channel programming can be preformed ei-ther in VFO mode or in memory mode.DDProgramming in VFO

1-3u MICROPHONE CONNECTOR [MIC]Accepts an optional microphone.• See p. 15-4 for appropriate microphones.• See p. 2-10 for microphone connector informa

Frequency transferringThe frequency and operating mode in a memory chan-nel can be transferred to the VFO. Frequency transfer-ring can be performed

8-58MEMORY OPERATION Memory list screenThe memory list screen simultaneously shows 9 mem-ory channels and their programmed contents. 15 mem-ory chann

8-68MEMORY OPERATION Memory namesAll memory channels (including scan edges) can betagged with alphanumeric names of up to 10 charac-ters each.Capital

8-78MEMORY OPERATION Memo padsThe transceiver has a memo pad function to store fre-quency and operating mode for easy write and recall.The memo pads

9-1SCANS Section 9 Scan types ……………………………………………………………… 9-2 Preparation ……………………………………………………………… 9-2 Voice squelch control function ……………………………………

9-2 Scan types•The scan function can be used on the main read-out only.•You can operate a scan while operating on a fre-quency using the split functi

9-3 Voice squelch control functionThis function is useful when you don’t want unmodu-lated signals pausing or cancelling a scan. When thevoice squelc

9-4 Programmed scan operationq Push several times to close a multi-func-tion screen, if necessary.w Select VFO mode.e Select the desired operating m

9-5 Fine programmed scan/Fine ∂F scanIn fine scan (programmed or ∂F), the scan speed de-creases when the squelch opens, but the transceiverkeeps scan

1-4!7 NOISE REDUCTION LEVEL CONTROL [NR](inner control; p. 5-17)Adjusts the DSP noise reduction level when thenoise reduction function is in use. Set

9-6 Memory scan operationq Push several times to close a multi-func-tion screen, if necessary.w Select memory mode.e Push [F-5•SCAN] to select the s

9-7 Setting select memory channelsDDSetting in scan screenq Push several times to close a multi-func-tion screen, if necessary.w Select memory mode.

9-8 Tone scanThe transceiver can detect subaudible tones in a re-ceived signal. By monitoring a signal that is beingtransmitted on a repeater input f

10-1ANTENNA TUNER OPERATION Section10 Antenna connection and selection ………………………………… 10-2 Antenna memory settings …………………………………………… 10-3D Antenna

10-2 Antenna connection and selectionThe IC-7700 has 4 antenna connectors for theHF/50 MHz bands, [ANT1], [ANT2], [ANT3], and[ANT4].For each operatin

10-3 Antenna memory settingsThis function stores the antenna connector number foreach frequency band.q Push several times to close multi-functionscr

10-4 Antenna memory settings (continued)DDTemporary memoryThe antenna temporary memory memorizes the man-ually selected antenna. The selected antenna

10-510ANTENNA TUNER OPERATIONDDReceive antenna I/O settingIn default setting, receive antenna connectors, [RXANT-IN] and [RX ANT-OUT], on the rear pan

10-610ANTENNA TUNER OPERATION Antenna tuner operationThe internal automatic antenna tuner matches thetransceiver to the connected antenna automatical

10-710ANTENNA TUNER OPERATION Antenna tuner operation (continued)• PTT TUNER STARTThe tuner is always tuned when the PTT is pushedafter the frequency

1-5@3 RF GAIN CONTROL [RF] (outer control; p. 3-9)Adjusts the RF gain level. While rotating the RF gain control, you may hearnoise. This comes from th

11-1CLOCK AND TIMERS Section11 Time set mode ………………………………………………………… 11-2 Daily timer setting ……………………………………………………… 11-3 Setting sleep timer ……………

11-2 Time set modeThe IC-7700 has a built-in calendar and 24-hour clock(accuracy ±75 sec. per month) with daily powerON/OFF timer functions. Before o

11-3 Daily timer settingThe transceiver turns power ON and/or OFF automat-ically on the specified day and time, with the specifiedfrequency settings.

11-4 Setting sleep timerThe sleep timer turns the transceiver power OFF au-tomatically after passing the set period. The timer canbe set to 5–120 min

12-1SET MODE Section 12 Set mode description ………………………………………………… 12-2D Set mode operation ………………………………………………… 12-2D Screen arrangement ………………………………

12-2 Set mode descriptionSet mode is used for programming infrequentlychanged values or conditions of functions. The IC-7700 has a level set mode, di

12-312SET MODEDDScreen arrangement• Set mode menu screen (p. 12-2)• Level set mode (p. 12-4)• ACC set mode (p. 12-7)• Time set mode (p. 11-2)• Display

12-412SET MODE Level set modeSets the bass level of the receive audio tone in SSBmode from –5 to +5. (default: 0)Tone (Bass)0Sets the treble level o

12-512SET MODE Level set mode (continued)Sets the bass level of the transmit audio tone in SSBmode from –5 to +5. (default: 0)SSB TX Tone (Bass)

Level set mode (continued)12-612SET MODESets the voice synthesizer audio output level from 0 to100% in 1% steps. (default: 50%)Speech Level50%Sets

1-6#3 MULTI-FUNCTION SWITCHESPush to select the functions indicated in the LCDdisplay to the right of these switches.• Functions vary depending on the

ACC set mode 12-712SET MODESets the desired audio output level, output from[ACC1], within 0 to 100% in 1% steps.•Outputs approx. 200 mV at 50% (defa

12-812SET MODE ACC set mode (continued)Selects the switching relay type for [RELAY] fromLead and MOSFET.Select the suitable relay type when connectin

12-912SET MODE ACC set mode (continued)Selects the transceiver’s reference signal conditionfrom IN, OFF and OUT.•IN: Use an external reference signal

12-1012SET MODE Display set mode (continued)Selects the desired S/RF meter type during normalscreen indication from Standard, Edgewise and Bar.(defau

12-1112SET MODESelect “ON” when the external display is connected. (default: OFF)• At least 800×600 pixel resolution is required for the dis-play.Exte

12-1212SET MODE Others set mode This item is used for a simple frequency check of thetransceiver. (default: OFF)See p. 13-5 for calibration procedure

12-1312SET MODE Others set mode (continued)Sets the offset (difference between transmit and re-ceive frequencies) for the quick split function. This

12-1412SET MODESelects the transverter operation condition from Autoand ON. (default: Auto)•ON: Turn the transverter operation ON.• Auto: The transcei

12-1512SET MODE Others set mode (continued)Sets the auto tuning step function for the main dial.When rotating the main dial rapidly, the tuning stepa

Others set mode (continued)12-1612SET MODESelects [DIGI-SEL] control function from DIGI-SELand APF.• DIGI-SEL : [DIGI-SEL] control functions as the

1-7MF5 (MULTI-FUNCTION 5 SWITCH)➥ Activates and selects fast, mid-rangeor slow AGC time constant whenpushed. (p. 5-11)• In FM mode, only “FAST” is ava

12-1712SET MODESets the external keypad for voice message trans-mission capability ON and OFF.See page 2-7 for the equivalent circuit of an externalke

12-1812SET MODE Others set mode (continued)Select [RS-232C] connector output data format fromCI-V and Decode.• CI-V : Outputs data in CI-V format. (d

12-1912SET MODE USB-Memory set menuDDUSB-Memory set screen arrangement• USB-Memory set menu• Setting load screen (p. 12-23)• Load option set mode (p.

DDSave option set mode12-2012SET MODESelects file save condition from All and Select.(default: All)• All : Saves all the following contents. • Select

12-2112SET MODEDDLoad option set modeSelects file load condition from All and Select.(default: Select)• All : Loads and sets the all following content

12-2212SET MODE File savingMemory channel contents, set mode settings, etc. canbe saved into the USB-Memory for backup.q During set mode menu screen

12-2312SET MODE File loadingBy loading the saved setting file from the USB-Mem-ory, you can easily set up another IC-7700—severaloperators settings c

Changing a file nameThe file name, saved in the USB-Memory, can be re-named from the transceiver as desired.q During setting save screen display, pu

12-2512SET MODE Deleting a file RECOMMENDATION! Deleting the setting file is ir-reversible. Confirm the contents before deleting asetting file!q Duri

12-2612SET MODE Formatting the USB-MemorySaved data in the USB-Memory can be erased.IMPORTANT! Formatting erases all saved data inthe USB-Memory. Mak

1-8$3 MODE SWITCHESSelects the desired mode. (p. 3-8)• Announces selected mode via the speech synthesizer.(p. 12-15)Selects USB and LSB modes alter-na

13-1MAINTENANCE Section 13 Troubleshooting ……………………………………………………… 13-2D Transceiver power ………………………………………………… 13-2D Transmit and receive ……………………………

TroubleshootingThe following chart is designed to help you correctproblems which are not equipment malfunctions.If you are unable to locate the caus

13-3DDScanningDDDisplayDDFormat USB-Memory13MAINTENANCEPROBLEM POSSIBLE CAUSE SOLUTION REF.Programmed scan doesnot stop.Programmed scan doesnot start.

13-4 SWR readingThe SWR meter indicates the SWR over the transmis-sion line in all modes.q Push to turn the antenna tuner OFF.w Push and hold [METER

13-5 Frequency calibration (approximate)A very accurate frequency counter is required to cali-brate the frequency of the transceiver. However, arough

13-6 Opening the transceiver’s caseFollow the case opening procedures shown here whenyou want to replace the clock backup battery or inter-nal fuse.C

13-7 Fuse replacementWhen no external DC output is available from [EXTDC] and ACC connectors, the internal fuse may beopen. Replace the fuse in this

13-8 About protection indicationsThe IC-7700 has a 2-step protection function to protectthe final power amplifiers.The protector monitors the power a

14-1CONTROL COMMAND Section 14 Remote jack (CI-V) information ……………………………………… 14-2D CI-V connection example ………………………………………… 14-2D Data format ………

14-2 Remote jack (CI-V) informationDDCI-V connection exampleThe transceiver can be connected through an optionalCT-17 CI-V LEVEL CONVERTER to a PC eq

1-9$7 MEMO PAD-WRITE SWITCH (p. 8-7)Programs the displayed readout frequency and op-erating mode into a memo pad.• The 5 most recent entries remain i

14-3DDCommand table14CONTROL COMMAND00 — Send frequency data01 Same as Send mode datacommand 0602 — Read band edge frequencies03 — Read operating fre

14-4DDCommand table (continued)14CONTROL COMMAND14 18 + Level data [CONTRAST] setting (0=max.CCW to 255=max. CW)19 + Level data [BRIGHT] setting (0=ma

14-5DDCommand table (continued)14CONTROL COMMAND1A 050023 Send/read CW side tone gain(0=min. to 255=max.)050024 Send/read CW side tone gain limit(0=OF

14-6DDCommand table (continued)14CONTROL COMMAND1A 050077 Send/read RTTY keying polarity(0=Normal, 1=Reverse)050078 Send/read PSK tone frequency (0=10

14-7DDCommand table (continued)14CONTROL COMMAND1A 050124 Send/read scope edge frequen-cies for 26.00 to 30.00 MHz band(see p. 14-10 for details)05012

DDCommand table (continued)14-814CONTROL COMMAND1A 050176 Send/read antenna selection for45.00 to 60.00 MHz band (see p. 14-10 for details)050177 Send

14-914CONTROL COMMANDDDTo send/read memory contentsWhen sending or reading memory contents, additionalcodes must be added to append the memory channel

14-1014CONTROL COMMANDDDOffset frequency settingThe following data sequence is used when sending orreading the offset frequency setting.DDRepeater ton

15-1SPECIFICATIONS AND OPTIONS Section15 Specifications ………………………………………………………… 15-2D General ……………………………………………………………… 15-2D Transmitter …………………………………

15-2 SpecificationsDDGeneral• Frequency coverage (unit: MHz) :Receiver 0.030000–60.000000*1Transmitter 1.800000–1.999999*2, 3.500000–3.999999*2, 5.33

iFOREWORDThank you for making the IC-7700 your radio of choice. We hope you agreewith Icom’s philosophy of “technology first.” Many hours of research

1-10^1 PASSBAND TUNING CONTROLS [TWIN-PBT] (p. 5-12)Adjusts the receiver’s IF filter “passband width” viathe DSP. • Passband width and shift frequency

15-3DDReceiver• Receive system : Double conversion superheterodyne system• Intermediate frequencies :1st 64.455 MHz2nd 36 kHz• Sensitivity (typical) :

15-4 Options• IC-PW1/EURO HF/50MHzALL BAND1kW LINEAR AMPLIFIERFull-duty-cycle 1 kW linear amplifier including an auto-matic antenna tuner. Has automa

16-1UPDATING THE FIRMWARE Section16 General ………………………………………………………………… 16-2 Caution ………………………………………………………………… 16-2 Preparation ………………………………………………………

16-2 GeneralThe IC-7700’s firmware can be updated if desired. Byupdating the firmware, new function(s) can be addedand the improvement of performance

16-3 PreparationDDFirmware and firm utility The latest firmware and the firm utility can be down-loaded from the Icom home page via the Internet. Ac-

16-4 Firmware update— USB-MemoryWhen updating the firmware with the USB-Memory, noIP address or subnet mask settings are necessary. q Copy the downlo

16-5!3 After the firmware loading is completed, the trans-ceiver starts the update automatically and the dia-log at left is displayed.RWARNING!: NEVER

16-6 Firmware update— PCDDConnections Connect the IC-7700 and the PC through a LAN (LocalArea Network) as follows.= × × × ×*Purchased sep

16-7DDIP address settingIMPORTANT!: A fixed (static) IP address is used forthe IC-7700.When you connect the IC-7700 to a LAN, ask thenetwork manager a

16-8DDUpdating from the PCq Start up the IC-7700 Firm Utility.• The window as at left appears.w Read the caution in the window carefully.e Click [Yes]

1-11^5 MANUAL NOTCH FILTER CONTROL [NOTCH](outer control; p. 5-18)Varies the “valley” frequency of the manual notch fil-ter to reject an interfering s

16-9o The screen as at left is displayed.• The following dialog appears in the IC-7700 display.RWARNING!: NEVER turn the IC-7700 powerOFF at this stag

INSTALLATION NOTESFor amateur base station installations it is recom-mended that the clearance in front of the antenna arrayis calculated relative to

ABOUT CEDECLARATIONOF CONFORMITYDüsseldorf 16th Nov.2007Place and date of issueIcom (Europe) GmbHHimmelgeister straße 100D-40225 DüsseldorfAuthorized

Please record the serial number of your IC-7700 transceiver below for future servicingreference:Serial Number :Date of purchase :Place where purchased

1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan<Intended Country of Use> AT BE CY CZ DK EE FI FR DE GR HU I

q ANTENNA CONNECTOR 1 [ANT 1] (p. 2-5)w ANTENNA CONNECTOR 2 [ANT 2] (p. 2-5)e ANTENNA CONNECTOR 3 [ANT 3] (p. 2-5)r ANTENNA CONNECTOR 4 [ANT 4] (p. 2-

1-13!5 S/P DIF INPUT TERMINAL [S/P DIF– IN] (p. 2-7)!6 S/P DIF OUTPUT TERMINAL [S/P DIF– OUT] (p. 2-7)Connects external equipment that supports S/P DI

q S/RF METER (pgs. 3-10, 3-11)Shows the signal strength while receiving. Showsthe relative output power, SWR, ALC or compres-sion levels while transmi

1-151PANEL DESCRIPTIONi APF/TPF INDICATOR➥ “” appears when the audio peak filter func-tion is in use. This function is available in CWmode. (p. 4-6)➥

1-161PANEL DESCRIPTIONThe following screens can be selected from the startup screen. Choose the desired screen using the fol-lowing chart.Pushing sev

2-1INSTALLATION AND CONNECTIONS Section2 Unpacking ……………………………………………………………… 2-2 Main dial attachment …………………………………………………… 2-2 Rack mounting handle

2-2 UnpackingAfter unpacking, immediately report any damage to thedelivering carrier or dealer. Keep the shipping cartons.For a description and a dia

2-32INSTALLATION AND CONNECTIONS Rack mounting handle detachmentThe rack mounting handles are supplied attached tothe transceiver to stabilize the tr

iiPRECAUTIONSR WARNING HIGH RF VOLTAGE! NEVERattach an antenna or internal antenna connector duringtransmission. This may result in an electrical shoc

2-42INSTALLATION AND CONNECTIONS GroundingTo prevent electrical shock, television interference(TVI), broadcast interference (BCI) and other prob-lem

2-52INSTALLATION AND CONNECTIONS Required connectionsDDFront panelPOWERTUNERTIMERVOXSSB CWRTTY/PSVOX GAINMONI GAINCOMPDRIVEBK-IN MONITORTRANSMITMICEL

2-62INSTALLATION AND CONNECTIONS Advanced connectionsDDFront panelALCADJALCRELAYCW KEYEXTKEYPADMETERDC OUT15VMAX1AREF I/O10MHz-10dBmINOUTREMOTERS-232

2-72INSTALLATION AND CONNECTIONSDDRear panel— 2ALCADJALCRELAYCW KEYEXTKEYPADMETERDC OUT15VMAX1AREF I/O10MHz-10dBmINOUTREMOTERS-232CEXT-DISPLAYRX ANTIN

DDConnecting a non-Icom linear amplifierR WARNING:Set the transceiver output power and linear ampli-fier ALC output level after referring to the linea

2-92INSTALLATION AND CONNECTIONS Transverter jack informationWhen 2 to 13.8 V is applied to pin 6 of [ACC 2], the [X-VERTER] connector is activated f

Microphone connector information(Front panel view)CAUTION: DO NOT short pin 2 to ground as thiscan damage the internal 8 V regulator.NOTE: DC voltag

2-112INSTALLATION AND CONNECTIONS Accessory connector informationACC 2PIN No.NAME DESCRIPTION SPECIFICATIONSACC 1PIN No.NAME DESCRIPTION SPECIFICATIO

3-1BASIC OPERATIONS Section 3 When first applying power (CPU resetting) ………………………… 3-2 Initial settings …………………………………………………………… 3-2 Selecting VFO

q AC power cable* ………………………………… 1w Feet …………………………………………… 1 paire Spare fuse (FGB 2 A) …………………………… 1r RCA plugs ………………………………………… 2t DC plug …………………

3-2 When first applying power (CPU resetting)Before first applying power, make sure all connectionsrequired for your system are complete by referring

VFO selectionVFO is an abbreviation of Variable Frequency Oscilla-tor, and is commonly referred to as a main tuning func-tion. The main dial is ofte

3-4 Selecting an operating bandThe triple band stacking register provides 3 memoriesfor each band key, storing frequency and mode infor-mation.This f

3-5 Frequency settingThe transceiver has several tuning methods for conve-nient frequency tuning.DDTuning with the main dialq Push the desired band k

3-6DDQuick tuning stepThe operating frequency can be changed in largersteps (0.1, 1, 5, 9, 10, 12.5, 20 or 25 kHz selectable)for quick tuning.q Push [

3-7DDSelecting 1 Hz stepA minimum tuning step of 1 Hz can be used for finetuning.q Push [TS] to turn the quick tuning function OFF.w Push and hold [TS

3-8 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),

3-9 Volume setting➥ Rotate [AF] control clockwise to increase, counter-clockwise to decrease the audio output level.• Set a suitable audio level.3BAS

DDMulti-function digital meterThe IC-7700 can display the multi-function digitalmeter on the LCD display. This meter displays alltransmit parameters s

3-11DDMeter type selectionA total of 3 meter types are available in the IC-7700—Standard, Edgewise and Bar meters. Follow the instructions below for t

ivSection 1 PANEL DESCRIPTION Front panel ……………………………………………………………… 1-2 Rear panel ……………………………………………………………… 1-12 LCD display ………………………………………………………

3-12 Basic transmit operation3BASIC OPERATIONSDDMicrophone gain adjustmentBefore transmitting, monitor your selected operatingfrequency to make sure

3-13DDDrive gain adjustmentThe drive gain is active for all modes other than SSBmode with speech compressor OFF. The [DRIVE] con-trol adjusts the ampl

4-1RECEIVE AND TRANSMIT Section4 Operating SSB ………………………………………………………… 4-2D Convenient functions for receive ……………………………………4-2D Convenient functions

4-2 Operating SSBq Push a band key to select the desired band.w Push to select LSB or USB.• “USB” or “LSB” appears.• Below 10 MHz LSB is automatical

DDAbout 5 MHz band operation (USA version only)Operation on the 5 MHz band is allowed on 5 discretefrequencies and must adhere to the following: • USB

4-4 Operating CWq Push a band key to select the desired band.w Push to select CW.• After CW mode is selected, push to toggle be-tween CW and CW-R m

4-5DDAbout CW reverse modeCW-R (CW Reverse) mode uses the opposite sideband to receive CW signals.Use when interfering signals are near a desired sign

4-6DDAPF (Audio Peak Filter) operationThe APF changes the audio frequency response byboosting a particular frequency to enhance a desiredCW signal. Th

4-7 Electronic keyer functionsThe IC-7700 has a number of convenient functions forthe built-in electronic keyer.q During CW mode, push several times

Meter indication selection …………………………………………… 3-10D Multi-function digital meter ………………………………………… 3-10D Meter type selection ……………………………………………… 3-

4-8DDMemory keyer screenPre-set characters can be sent using the keyer sendmenu. Contents of the memory keyer are set using theedit menu.•Transmitting

4-9DDEditing a memory keyer The contents of the memory keyer memories can beset using the memory keyer edit menu. The memorykeyer can memorize and re-

4-10DDContest number set modeThis menu is used to set the contest (serial) numberand count-up trigger, etc.• Setting contentsq During CW mode operatio

4-11DDKeyer set modeThis set mode is used to set the memory keyer repeattime, dash weight, paddle specifications, keyer type,etc.• Setting contentsq D

4-12DDKeyer set mode (continued)4RECEIVE AND TRANSMITThis item sets the paddle polarity. • Normal and reverse polarity can be selected.This item selec

4-13 Operating RTTY (FSK)ADSP-based high-quality Baudot RTTY encoder/de-coder is built-in to the IC-7700. When connecting a PCkeyboard (p. 2-6), RTTY

4-14DDAbout RTTY reverse modeReceived characters are occasionally garbled whenthe received signal has Mark and Space tones re-versed. This reversal ca

4-15DDFunctions for the RTTY decoder indicationq Push a band key to select the desired band.w Push to select RTTY.• After RTTY mode is selected, push

4-16DDRTTY memory transmissionPre-set characters can be sent using the RTTY mem-ory. Contents of the memory are set using the editmenu.q During RTTY m

4-17DDEditing RTTY memory The contents of the RTTY memories can be set usingthe memory edit menu. The memory can store and re-transmit 8 RTTY message

vi Repeater operation …………………………………………………… 4-32D Repeater tone frequency setting …………………………………4-33 Tone squelch operation ……………………………………………… 4-34

4-18DDRTTY decode set modeThis set mode is used to set the decode USOS func-tion, time stamp setting, etc.• Setting contentsq During RTTY mode operati

4-19DDRTTY decode set mode (continued)4RECEIVE AND TRANSMITExplicitly inserts the FIGS character even though it isnot required by the receiving statio

4-20DDData savingThe contents of the RTTY memory and received sig-nal can be saved into the USB-Memory.q During RTTY decode screen indication, push [F

4-21 Operating PSKA high-quality DSP-based PSK31 encoder/decoder isbuilt-in to the IC-7700. When connecting a PC key-board (p. 2-6), PSK31 operation

4-22DDAbout BPSK and QPSK modesBPSK and QPSK modes are available for PSK31.• BPSK (Binary Phase Shift Keying) mode is the mostcommonly used mode.• QPS

4-23DDFunctions for the PSK decoder indicationq Push a band key to select the desired band.w Push to select PSK.• After PSK mode is selected, push an

4-24DDPSK memory transmissionPre-set characters can be sent using the PSK memo-ry. Contents of the memory are set using the editmenu.q During PSK mode

4-25DDEditing PSK memory The contents of the PSK memories can be set usingthe memory edit menu. The memory can store 8 PSKmessages for often-used PSK

4-26DDPSK decode set modeThis set mode is used to set the decode USOS func-tion, time stamp setting, etc.• Setting contentsq During PSK mode operation

4-27DDPSK decode set mode (continued)4RECEIVE AND TRANSMITSelects the operating frequency display for timestamp usage.NOTE: The frequency won’t be dis

Section 7 VOICE RECORDER FUNCTIONS About digital voice recorder …………………………………………… 7-2 Recording a received audio …………………………………………… 7-3D Basic recor

4-28DDData savingThe contents of the PSK memory and received signalcan be saved into the USB-Memory.q During PSK decode screen indication, push [F-1•&

4-29 Operating AMq Push a band key to select the desired band.w Push to select AM.• “AM” indicator appears.• After AM mode is selected, push to togg

4-304RECEIVE AND TRANSMIT• VOX (voice operated transmit) (p. 6-2)➥ Push to turn the VOX function ON andOFF.•“ ” appears when the VOX function is ON.

4-31 Operating FMq Push a band key to select the desired band.w Push to select FM.• “FM” indicator appears.• After FM mode is selected, push to tog

4-32 Repeater operationA repeater amplifies received signals and retransmitsthem at a different frequency. When using a repeater,the transmit frequen

4-334RECEIVE AND TRANSMITDDRepeater tone frequency settingSome repeaters require subaudible tones to be ac-cessed. Subaudible tones are superimposed o

4-34 Tone squelch operationThe tone squelch opens only when receiving a signalcontaining a matching subaudible tone. You cansilently wait for calls f

4-354RECEIVE AND TRANSMIT Data mode (AFSK) operationWhen operating AMTOR or PACKET with your TNCand/or PC software, consult the manual that comeswith

5-1FUNCTIONS FOR RECEIVE Section 5 Spectrum scope screen ……………………………………………… 5-2D Center mode ………………………………………………………… 5-2D Fixed mode ……………………………………

viii Setting select memory channels ……………………………………… 9-7D Setting in scan screen ……………………………………………… 9-7D Setting in memory list screen ………………………………

5-2 Spectrum scope screenThis DSP-based spectrum scope allows you to displaythe conditions on the selected band, as well as relativestrengths of sign

5-3DDFixed modeDisplays signals within the specified frequency range.The selected frequency band conditions can be ob-served at a glance when using th

5-4DDMini scope screen indicationThe mini scope screen can be displayed with anotherscreen display, such as set mode menu, decodescreen, memory list s

5-5DDScope set mode (continued)5FUNCTIONS FOR RECEIVETurn the transmitting signal waveform indication ONand OFF. NOTE: The transmitting signal wavefo

5-6DDScope set mode (continued)5FUNCTIONS FOR RECEIVESelect the sweep speed for the ±50 kHz span selec-tion from SLOW, MID and FAST.

5-7DDScope set mode (continued)5FUNCTIONS FOR RECEIVESet the scope edge frequencies for fixed mode scopewhen the 8 to 11 MHz band is selected.• Set th

5-8DDScope set mode (continued)5FUNCTIONS FOR RECEIVESet the scope edge frequencies for fixed mode scopewhen the 30 to 45 MHz band is selected.• Set t

5-9 PreamplifierThe preamp amplifies received signals in the receiverfront end, to improve the S/N ratio and sensitivity. Setthis to preamp 1 or prea

5-10 RIT functionThe RIT (Receive Increment Tuning) function com-pensates for off-frequency operation of the receivedstation.The function shifts the

5-11 AGC functionThe AGC (auto gain control) controls receiver gain toproduce a constant audio output level even when thereceived signal strength var