Icom HF/VHF/UHF ALL MODE TRANSCEIVER Rtty FSK operation, Rtty Afsk operation, Presetting for Rtty

Page 39

RECEIVE AND TRANSMIT 4

DRTTY (FSK) operation

➀Connect a terminal unit as at left.

➁Select RTTY (or åRTTY—see bottom of page) mode with [MODE].

➂Select the desired FSK tone/shift frequencies and keying polarity as below.

➃Set the desired frequency with the main dial.

•Use [(F-1)1/4] in the M4 display when critical setting is required.

 

RTTY

 

RTTY mode is selected.

S1 3 5 7 9

20 40

60dB

VFO A

PO

5

10

CH

M1 SPL A/B A=B

➄Operate the connected PC or TNC (TU).

PRESETTING FOR RTTY

Tone frequency

➀Push [DISPLAY] for 2 sec. to select quick set mode.

➁Push [MENU] one or more times to select Q2

RTTY

RTTY mark frequency

 

is set to 2125 Hz.

RTTY TONE; then rotate the main dial to select

the desired tone frequency (p. 48).

Shift frequency

➀Push [DISPLAY] for 2 sec. to select quick set mode.

➁Push [MENU] one or more times to select Q3 RTTY SHIFT; then rotate the main dial to select the desired shift frequency (p. 48).

Q2 RTTY TONE

RTTY

Q3 RTTY SHIFT

2125 and 1615 Hz are available.

RTTY shift frequency is set to 170 Hz.

170/200/425 Hz are available.

RTTY keying

➀Push [DISPLAY] for 2 sec. to select quick set mode.

➁Push [MENU] one or more times to select Q4 RTTY KEYING; then rotate the main dial to select the desired keying polarity (p. 48).

RTTY

RTTY keying is set to

 

‘normal’.

 

normal: key open=mark

 

key close=space

Q4 RTTY KEYING

reverse: key open=space

 

key close=mark

DRTTY (AFSK) operation

➀Connect a terminal unit as at left.

➁Select SSB (LSB) mode with [MODE].

•Generally, LSB is used on the HF bands and FM is used for the VHF band.

➂Select the desired FSK tone/shift frequencies and keying polarity as below.

➃Set the desired frequency with the main dial.

•Use [(F-1)1/4] in the M4 display when critical setting is required.

➄Operate the connected PC or TNC (TU).

RTTY reverse mode

Received characters are occasionally garbled when the receive signal is reversed between MARK and SPACE. This reversal can be caused by incorrect TNC connections, settings, commands, etc.

To receive a reversed RTTY signal correctly, select åRTTY (RTTY reverse) mode.

➥Push [MODE] for 1 sec. (while RTTY is selected) to select åRTTY mode.

•Check the receive signal.

PRESETTING FOR RTTY Tone frequency

Same as above.

Shift frequency

Same as above.

RTTY keying

Same as above.

 

 

Normal

 

 

Reverse

space mark

 

 

 

space mark

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

170

 

2125

 

2125

 

 

170

 

 

 

 

Hz

 

Hz

 

 

Hz

 

 

Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BFO

 

BFO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

displayed freq.

 

 

 

 

displayed freq.

36

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Contents I706MKG Word Definition Rwarning PrecautionsTable of Contents Panel Description Front panel0MAIN Dial Tension Latch @2PREAMP/ATTENUATOR Switch P.AMP/ATT 2LOCK Switch LockFunction switches Function p VOX Function pSpeech Compressor p BREAK-IN pRear and side panels When connecting the ACC conversion cable OPC-599 ACC PIN # Name Description Specifications ColorACC Socket Function display 1DOT Matrix Indicators3FUNCTION Indicators 4DSP IndicatorsHM-103 Schematic Diagram ➊UP/DOWN Switches UP/DN ➋LOCK Switch Lock➌PTT Switch PTT Microphone ConnectorGrounding Installation and ConnectionsPL-259 Connector Installation Example UnpackingFront panel separation InstallationSingle body mounting StandRtty Terminal Required connectionsAdvanced connections Connecting a NON-ICOM Power supply connectionsConnecting the PS-85 DC Power Supply Connecting a NON-ICOM DC Power SupplyExternal antenna tuners and linear amplifier Connecting the AH-4Connecting the AT-180 Connecting the IC-PW1Power OFF Frequency SettingWhen first applying power CPU resetting Initial settingsVFO VFO ModeMemory Mode pgs VFO descriptionBand selection Frequency settingProgrammable tuning steps Hz and 10 Hz tuning stepsSub dial function MHz quick tuning stepTS Switch Flow Chart SSB/CW/RTTY modes Any mode FM/WFM/AM modes➁ Push F-1-F-3 to select a band stacking register Mode selectionOperating Mode Selection Quick band change functionRIT function Receive and TransmitFunctions for receive If shift functionPeak meter hold Noise blankerAGC time constant Preamp and attenuatorRF gain and squelch Simple band scopeRF/SQL control priority SSB Filter PresettingOptional filter selection Filter ON/OFFCeiver maintains the ON/OFF condition when pushing F-2NR ANF Automatic Notch Filter functionNR Noise Reduction function Output power and mic gain Functions for transmitDMeter function VOX operation Speech compressorManual Tuning Optional AT-180 Automatic Antenna Tuner operationTuner Operation PTT tune function ➂ The Tuner light lights constantly when tuning is completeOptional AH-4AUTOMATIC Antenna Tuner operation AH-4 operationSplit lock function Split frequency operationQuick split function ➀ Select VFO a and set the frequency to 7.057 MHz/CW➄ Push and hold PTT to transmit release PTT to receive Repeater operation➂ Push F-3SCN to toggle tone scan operation on and OFF Tone squelch operationTone scan operation ➅ Communicate in the usual mannerFrequency Duplex Direction One-touch repeater functionAuto repeater function This function automatically activates the repeater setElec KEY Functions for CWConnections for CW CW operationCW pitch control CW reverse modeDElectronic CW keyer Quick SET Mode Setting the electronic keyerFunctions for Rtty Connections for Rtty FSKConnections for Afsk Presetting for Rtty Rtty FSK operationRtty Afsk operation Data socket Adjusting the transmit signal output from the TNCPacket operation Connections for packetMeasuring SWR Spot measurementPlot measurement Memory clearing Memory and Scan OperationMemory channels Memory channel selectionProgramming in VFO mode Programming in memory modeMemory/call programming Editing programming memory names Frequency transferringMemory names Calling up memory names➀ Select the S1 display Memo padsWriting frequencies and operating modes into memo pads Calling up a frequency from a memo padPreparation Scan typesPriority watch Programmed scan operationMemory scan operation Select memory scan operationRemote Jack CI-V Information CI-V connection exampleData format VFO A=B Command TableGeneral SET ModeQuick set mode operation Initial set mode operationQ4 VOX Gain SSB/AM/FM only Quick set mode itemsQ3 VOX Delay SSB/AM/FM only Q2 MIC Gain SSB/AM/FM onlyQ5 Anti VOX SSB/AM/FM only Initial set mode items RF/SQL SQL/AUTO/RFSQL DUP HF duplex offset Quick Split quick split functionSplit Lock split lock SPL Offset split offsetScan Resume scan resume AM NB Noise blanker in AM modePWR on CHK Power on check Auto Rptr auto repeaterVsend SEL ACC socket output 29 9600 Mode Data socket speedTune Strt auto tuner start PTT Tune PTT tune functionCI-V TRN CI-V transceive LVL Spch S-level speechCI-V Addres CI-V address CI-V Baud CI-V data rateCleaning MaintenanceFuse replacement Memory backupPower Supply Receive Problem Possible Cause Solution TroubleshootingTransmit Display Scan Problem Possible Cause Solution Opening the transceiver case Optional INSTALLATIONS/SETTINGSIf filters DOperation InstallationAT-180 internal switch description S2 S1 B aPIN no Description Name Internal Views Top viewBottom view Options SP-21EXTERNAL Speaker SP-7EXTERNAL SpeakerSP-10EXTERNAL Speaker SP-12EXTERNAL Speaker SP-20EXTERNAL SpeakerSpecifications Indication Description No. Indication + power onPower OFF then on to exit initial set mode Menu GuideMenu Display SSB/AM/FM mode CW mode Rtty modeMode Display For 2 secCount on us
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