Icom iC-706MKTMG manual Packet operation, Connections for packet, Data socket

Page 40

4 RECEIVE AND TRANSMIT

■Packet operation

DConnections for packet

DATA IN

wGND

q

PTTP e

r DATA OUT

y SQ

tAF OUT

DATA

TX AUDIO

GND

TNC SIDE

RX AUDIO

SQL

PTT

RS-232C

Rear panel

TU or TNC

 

Personal computer

DData socket

qw

e r

ty

PIN #/NAME

DESCRIPTION

qDATA IN Communication data input.

w

GND

Ground for DATA IN, DATA OUT and AF OUT.

e

PTTP

Transmits when grounded.

rDATA OUT Outputs 9600 bps receive data.

tAF OUT Outputs 1200 bps receive data.

Rear panel view

y SQ

Squelch output.

Goes to ground when squelch opens.

DAdjusting the transmit signal output from the TNC

 

☞ NOTE: For packet operation the transceiver can

1. When using a level meter or synchroscope, adjust

 

be set to one of two data speeds: 1200 bps or

the TX audio level (DATA IN level) from the TNC as

 

9600 bps. Data speed is set in initial set mode

follows.

 

(see p. 54 item 29 9600 MODE).

0.4 Vp-p (0.2 Vrms): recommended level

 

Data speed is set in initial set mode (see p. 53 item

0.2 Vp-p–0.5 Vp-p (0.1 Vrms–0.25 Vrms):

 

acceptable level

 

29 9600 MODE).When setting data transmission

 

 

 

speed to 9600 bps, the DATA signal coming from the

2. When not using a measuring device.

 

TNC is applied exclusively to the internal limiter cir-

➀Connect the IC-706MKIIG to a TNC.

 

cuitry to automatically maintain bandwidth.

➁Enter a test mode (“CAL”, etc.) on the TNC, then

 

NEVER apply data levels from the TNC of over 0.6

transmit some test data.

 

Vp-p, otherwise the transceiver will not be able to

➂When the transceiver fails to transmit test data or

 

maintain the band width and may possibly interfere

transmits sporadically (TX indicator doesn’t appear

 

with other stations.

or flashes):

 

☞ NOTE: Read the instructions supplied with your

Decrease the TNC output level until the transmit

 

indicator lights continuously.

 

TNC carefully before attempting packet operation

 

When transmission is not successful even though

 

with the IC-706MKIIG.

 

the TX indictor lights continuously:

 

 

 

 

Increase the TNC output level.

37

 

 

 

 

Page 39 Page 41
Image 40
Page 39 Page 41
Contents I706MKG Precautions Word Definition RwarningTable of Contents Front panel Panel Description0MAIN Dial Tension Latch 2LOCK Switch Lock @2PREAMP/ATTENUATOR Switch P.AMP/ATTFunction switches VOX Function p Speech Compressor pBREAK-IN p Function pRear and side panels ACC PIN # Name Description Specifications Color When connecting the ACC conversion cable OPC-599ACC Socket 1DOT Matrix Indicators 3FUNCTION Indicators4DSP Indicators Function display➊UP/DOWN Switches UP/DN ➋LOCK Switch Lock ➌PTT Switch PTTMicrophone Connector HM-103 Schematic DiagramInstallation and Connections PL-259 Connector Installation ExampleUnpacking GroundingInstallation Single body mountingStand Front panel separationRequired connections Rtty TerminalAdvanced connections Power supply connections Connecting the PS-85 DC Power SupplyConnecting a NON-ICOM DC Power Supply Connecting a NON-ICOMConnecting the AH-4 Connecting the AT-180Connecting the IC-PW1 External antenna tuners and linear amplifierFrequency Setting When first applying power CPU resettingInitial settings Power OFFVFO Mode Memory Mode pgsVFO description VFOFrequency setting Programmable tuning stepsHz and 10 Hz tuning steps Band selectionMHz quick tuning step TS Switch Flow ChartSSB/CW/RTTY modes Any mode FM/WFM/AM modes Sub dial functionMode selection Operating Mode SelectionQuick band change function ➁ Push F-1-F-3 to select a band stacking registerReceive and Transmit Functions for receiveIf shift function RIT functionNoise blanker AGC time constantPreamp and attenuator Peak meter holdSimple band scope RF gain and squelchRF/SQL control priority Filter Presetting Optional filter selectionFilter ON/OFF SSBANF Automatic Notch Filter function Ceiver maintains the ON/OFF condition when pushing F-2NRNR Noise Reduction function Functions for transmit Output power and mic gainDMeter function Speech compressor VOX operationOptional AT-180 Automatic Antenna Tuner operation Manual TuningTuner Operation ➂ The Tuner light lights constantly when tuning is complete Optional AH-4AUTOMATIC Antenna Tuner operationAH-4 operation PTT tune functionSplit frequency operation Quick split function➀ Select VFO a and set the frequency to 7.057 MHz/CW Split lock functionRepeater operation ➄ Push and hold PTT to transmit release PTT to receiveTone squelch operation Tone scan operation➅ Communicate in the usual manner ➂ Push F-3SCN to toggle tone scan operation on and OFFOne-touch repeater function Auto repeater functionThis function automatically activates the repeater set Frequency Duplex DirectionFunctions for CW Connections for CWCW operation Elec KEYCW reverse mode DElectronic CW keyer Quick SET ModeSetting the electronic keyer CW pitch controlConnections for Rtty FSK Functions for RttyConnections for Afsk Rtty FSK operation Presetting for RttyRtty Afsk operation Adjusting the transmit signal output from the TNC Packet operationConnections for packet Data socketSpot measurement Measuring SWRPlot measurement Memory and Scan Operation Memory channelsMemory channel selection Memory clearingProgramming in memory mode Programming in VFO modeMemory/call programming Frequency transferring Memory namesCalling up memory names Editing programming memory namesMemo pads Writing frequencies and operating modes into memo padsCalling up a frequency from a memo pad ➀ Select the S1 displayScan types PreparationProgrammed scan operation Memory scan operationSelect memory scan operation Priority watchCI-V connection example Remote Jack CI-V InformationData format Command Table VFO A=BSET Mode Quick set mode operationInitial set mode operation GeneralQuick set mode items Q3 VOX Delay SSB/AM/FM onlyQ2 MIC Gain SSB/AM/FM only Q4 VOX Gain SSB/AM/FM onlyQ5 Anti VOX SSB/AM/FM only Initial set mode items RF/SQL SQL/AUTO/RFSQL Quick Split quick split function Split Lock split lockSPL Offset split offset DUP HF duplex offsetAM NB Noise blanker in AM mode PWR on CHK Power on checkAuto Rptr auto repeater Scan Resume scan resume29 9600 Mode Data socket speed Tune Strt auto tuner startPTT Tune PTT tune function Vsend SEL ACC socket outputLVL Spch S-level speech CI-V Addres CI-V addressCI-V Baud CI-V data rate CI-V TRN CI-V transceiveMaintenance Fuse replacementMemory backup CleaningTroubleshooting Power Supply Receive Problem Possible Cause SolutionTransmit Display Scan Problem Possible Cause Solution Optional INSTALLATIONS/SETTINGS Opening the transceiver caseIf filters Installation DOperationS2 S1 B a AT-180 internal switch descriptionPIN no Description Name Top view Internal ViewsBottom view Options SP-7EXTERNAL Speaker SP-10EXTERNAL Speaker SP-12EXTERNAL SpeakerSP-20EXTERNAL Speaker SP-21EXTERNAL SpeakerSpecifications + power on Power OFF then on to exit initial set modeMenu Guide Indication Description No. IndicationSSB/AM/FM mode CW mode Rtty mode Mode DisplayFor 2 sec Menu DisplayCount on us
Top Page Image Contents