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