Icom I706MKTMG, IC-706MKIIG Transmit Display Scan Problem Possible Cause Solution

Page 61

TROUBLESHOOTING 9

TRANSMIT

DISPLAY

SCAN

PROBLEM

POSSIBLE CAUSE

SOLUTION

REF.

Transmitting

is impossi-

The operating frequency is not set to

Set the frequency to a ham band.

p. 17

ble.

 

a ham band.

 

 

 

 

 

 

Output power is too low.

Power is set to a lower power than

Set the output power in quick set

p. 44

 

 

maximum.

mode.

 

 

 

Microphone gain is set too low.

Set microphone gain to a suitable

p. 44

 

 

 

position using quick set mode.

 

 

 

The antenna is not connected properly.

Reconnect the antenna connector.

—

 

 

The antenna feed line is cut or shorted.

Check the feed line and correct any

—

 

 

 

improper conditions.

 

 

 

An antenna for another band is selec-

Select an antenna suitable for the op-

p. 14

 

 

ted.

erating frequency.

 

 

 

The antenna is not properly tuned.

Push [TUNE] to manually tune the

pgs. 27,

 

 

 

antenna when an optional antennal

28

 

 

 

tuner is connected.

 

 

 

 

 

No contact possible with

RIT function is activated.

Push RIT to turn the function OFF.

p. 20

other stations.

Split function is activated.

Push [SPLIT] to turn the function OFF.

p. 29

 

 

 

 

 

 

Repeater cannot be ac-

Split function is not activated.

Push [DUP] to turn the function ON.

p. 29

cessed.

 

An incorrect transmit frequency is set.

Set the proper frequencies into VFO

p. 17

 

 

 

 

 

A and B or into one of the memory

 

 

 

 

channels.

 

 

 

Subaudible tone encoder is OFF and

Use [TON] to select FM-T.

p. 30

 

 

repeater requires a tone for access.

 

 

 

 

Programmed subaudible tone fre-

Program the required frequency using

p. 49

 

 

quency is wrong.

quick set mode.

 

 

 

 

 

 

Transmitted

signals are

Microphone gain is set too high.

Set gain in quick set mode.

p. 48

distorted.

 

[COMP LEVEL] is rotated too far

Set [COMP LEVEL] to a suitable pos-

p. 5

 

 

 

 

clockwise with the speech compres-

ition.

 

 

 

sor ON.

 

 

Displayed

frequency

The dial lock function is activated.

Push [LOCK] to deactivate the func-

p. 2

does not change proper-

 

tion.

 

ly.

 

The internal CPU has malfunctioned.

Reset the CPU.

p. 15

 

 

 

 

 

(While pushing [UP] and [DN] push [POW-

 

 

 

 

ER] to turn power ON.

 

Programmed scan does

Squelch is open.

Set squelch to the threshold position.

p. 23

not stop.

 

 

 

 

Programmed scan does

The same frequencies have been

Programm different frequencies into

p. 44

not start.

 

programmed in scan edge memory

scan edge memory channels.

 

 

 

channels.

 

 

 

 

 

 

Memory scan does not

2 or more memory channels have not

Program 2 or more memory chan-

p. 41

start.

 

been programmed.

nels.

 

 

 

 

 

Memory select scan

2 or more memory channels have not

Designate 2 or more memory chan-

p. 44

does not start.

been designated as select channels.

nels as select channels for the scan.

 

 

 

 

 

 

58

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Contents I706MKG Word Definition Rwarning PrecautionsTable of Contents Front panel Panel Description0MAIN Dial Tension Latch @2PREAMP/ATTENUATOR Switch P.AMP/ATT 2LOCK Switch LockFunction switches Speech Compressor p VOX Function pBREAK-IN p Function pRear and side panels ACC PIN # Name Description Specifications Color When connecting the ACC conversion cable OPC-599ACC Socket 3FUNCTION Indicators 1DOT Matrix Indicators4DSP Indicators Function display➌PTT Switch PTT ➊UP/DOWN Switches UP/DN ➋LOCK Switch LockMicrophone Connector HM-103 Schematic DiagramPL-259 Connector Installation Example Installation and ConnectionsUnpacking GroundingSingle body mounting InstallationStand Front panel separationRtty Terminal Required connectionsAdvanced connections Connecting the PS-125 / PS-85 DC Power Supply Power supply connectionsConnecting a NON-ICOM DC Power Supply Connecting a NON-ICOMConnecting the AT-180 Connecting the AH-4Connecting the IC-PW1 External antenna tuners and linear amplifierWhen first applying power CPU resetting Frequency SettingInitial settings Power onMemory Mode pgs VFO ModeVFO description ExampleProgrammable tuning steps Frequency settingHz and 10 Hz tuning steps Band selectionTS Switch Flow Chart MHz quick tuning stepSSB/CW/RTTY modes Any mode FM/WFM/AM modes Sub dial functionOperating Mode Selection Mode selectionQuick band change function ➁ Push F-1-F-3 to select a band stacking registerFunctions for receive Receive and TransmitIf shift function RIT functionAGC time constant Noise blankerPreamp and attenuator Peak meter holdSimple band scope RF gain and squelchRF/SQL control priority Optional filter selection Filter PresettingFilter ON/OFF SSBNR Noise Reduction function ANF Automatic Notch Filter functionFunctions for transmit Output power and mic gainDMeter function VOX operation Speech compressorOptional AT-180 Automatic Antenna Tuner operation Manual TuningTuner Operation Optional AH-4AUTOMATIC Antenna Tuner operation ➂ The Tuner light lights constantly when tuning is completeAH-4 operation PTT tune functionQuick split function Split frequency operation➀ Select VFO a and set the frequency to 7.057 MHz/CW Split lock function➄ Push and hold PTT to transmit release PTT to receive Repeater operation➆ To return to simplex operation, push F-1SPL Tone scan operation Tone squelch operation➅ Communicate in the usual manner ➂ Push F-3SCN to toggle tone scan operation on and OFFAuto repeater function One-touch repeater functionThis function automatically activates the repeater set Frequency Duplex DirectionConnections for CW Functions for CWCW operation Elec KEYDElectronic CW keyer Quick SET Mode CW reverse modeSetting the electronic keyer CW pitch controlConnections for Rtty FSK Functions for RttyConnections for Afsk Rtty FSK operation Presetting for RttyRtty Afsk operation Packet operation Adjusting the transmit signal output from the TNCConnections for packet Data socketSpot measurement Measuring SWRPlot measurement Memory channels Memory and Scan OperationMemory channel selection Memory clearingProgramming in memory mode Programming in VFO modeMemory/call programming Memory names Frequency transferringCalling up memory names Editing programming memory namesWriting frequencies and operating modes into memo pads Memo padsCalling up a frequency from a memo pad ➀ Select the S1 displayPreparation Scan typesMemory scan operation Programmed scan operationSelect memory scan operation Priority watchCI-V connection example Remote Jack CI-V InformationData format VFO A=B Command TableQuick set mode operation SET ModeInitial set mode operation GeneralQ3 VOX Delay SSB/AM/FM only Quick set mode itemsQ2 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 Split Lock split lock Quick Split quick split functionSPL Offset split offset DUP HF duplex offsetPWR on CHK Power on check AM NB Noise blanker in AM modeAuto Rptr auto repeater Scan Resume scan resumeTune Strt auto tuner start 29 9600 Mode Data socket speedPTT Tune PTT tune function Vsend SEL ACC socket outputCI-V Addres CI-V address LVL Spch S-level speechCI-V Baud CI-V data rate CI-V TRN CI-V transceiveFuse replacement MaintenanceMemory backup CleaningPower Supply Receive Problem Possible Cause Solution TroubleshootingTransmit Display Scan Problem Possible Cause Solution Opening the transceiver case Optional INSTALLATIONS/SETTINGSIf filters DOperation InstallationS2 S1 B a AT-180 internal switch descriptionPIN no Description Name Top view Internal ViewsBottom view Options SP-7EXTERNAL Speaker PS-125DC Power SupplySP-10EXTERNAL Speaker SP-12EXTERNAL Speaker SP-20EXTERNAL SpeakerSpecifications Power OFF then on to exit initial set mode + power onMenu Guide Indication Description No. IndicationMode Display SSB/AM/FM mode CW mode Rtty modeFor 2 sec Display MenuCount on us Declaration Conformity About CETypical amateur radio installation Installation NotesForward clearance, Eirp by frequency band Eirp Clearance heights by frequency bandAbout SP-7 External Speaker Installation Note

I706MKTMG, IC-706MKIIG specifications

The Icom IC-706MKIIG and the Icom IC-706MKTMG are two prominent transceiver models known for their compact design and versatile capabilities. These radios cater to amateur radio enthusiasts, providing a wide range of features suitable for both HF and VHF/UHF operations.

The IC-706MKIIG is a well-regarded dual-band transceiver that operates on HF frequencies from 160 meters to 10 meters and VHF/UHF from 6 meters to 70 centimeters. One of its main features is its compact footprint, making it an excellent choice for mobile operations as well as fixed installation. The transceiver provides up to 100 watts of output power on HF and 50 watts for VHF/UHF, ensuring robust performance for various amateur applications.

On the other hand, the IC-706MKTMG brings the same foundational performance but includes enhanced features aimed at improving user experience. It boasts a high-resolution LCD display with clear visibility under varying light conditions. This model offers advanced digital signal processing (DSP) technology, enhancing audio clarity and reducing noise interference. The built-in auto notch filter and noise blanker efficiently eliminate unwanted signals, allowing users to focus on their desired contacts without distraction.

Both models support multiple modes of operation, including SSB, CW, AM, and FM, which provides versatility in how users can communicate. They feature an easy-to-navigate menu system, allowing users to access settings quickly. With built-in memories and a large number of program settings, operators can customize their experience and quickly switch between configurations.

One standout feature of the IC-706 series is its built-in antenna tuner, which helps match the transceiver to various antenna types, optimizing performance and simplifying setup. The radios also include support for external control via CAT commands, accommodating advanced integration into larger station setups.

In terms of user connectivity, both transceivers come equipped with USB ports and support sound card capabilities, enabling digital modes such as PSK31 and RTTY easily. This integration enhances versatility, catering to modern digital communications alongside traditional voice modes.

Robust, reliable, and feature-rich, the Icom IC-706MKIIG and IC-706MKTMG models stand out as exemplary choices for amateur operators looking for a compact yet comprehensive transceiver solution. Their combination of technologies and characteristics continues to make them popular in the ham radio community.
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