Gme TX3120S User Manual download pdf (Page 12)

PAGE 12 INSTRUCTION MANUAL TX3120S

NOTE: The Squelch level can be actively adjusted

while the radio is scanning. This allows you to

tighten the Squelch in cases where an undesired

weak or noisy signal is interrupting the scan.

SIGNAL METER

The signal meter indicates the relative strength of

the incoming signal in numerical format. A digital

signal strength level is displayed on the lower

left of the Channel Display in values from 0 to 9.

Signals above strength 9 are displayed as 9+.

The signal strength is also displayed on a bar graph

in the upper left of the display with a longer bar

indicating a stronger signal.

By default the digital signal strength meter displays

signal strengths in the standard logarithmic format

however it can be set to display signal strengths in

linear format or the location can be used to display

the battery voltage instead.

To change the digital signal strength options;

1. Press and hold the Channel control to enter

the menu. The display will show the current

Squelch level setting.

2. Rotate the Channel control until ‘S-MET’,

‘S-LIN’ or ‘BATT’ is displayed then press the

Channel control to select it. The selected

option will be ﬂashing.

3. Rotate the Channel control to make the

desired selection.

• Select‘S-MET’todisplaythelogarithmicsignal

meter.

• Select‘S-LIN’todisplaythelinearsignalmeter.

• Select‘BATT’todisplaythebatteryvoltage

instead of signal strength.

When ﬁnished brieﬂy press the Channel control to

return to the menu or press and hold the Channel

control to exit the menu.

TRANSMITTING

Prior to transmitting, always check the channel

is not being used. This can be done by listening

to the channel or by visually checking that the

icon is not visible or the signal meter is not

indicating a signal.

To transmit, press the PTT on the microphone. The

icon will appear. Hold the microphone about

5-8 cm from your face and speak at a normal voice

level. The microphone is quite sensitive so it is not

necessary to raise your voice or shout. Release the

PTT when you have ﬁnished talking. The icon

will disappear.

IMPORTANT: Always listen to ensure the channel

is free before transmitting.

TIME-OUT TIMER

The radio has a built-in time-out timer that

automatically limits transmissions to a maximum

of 3 minutes of continuous operation. This feature

is required by the ACMA to prevent accidental

blocking of the frequency should your PTT become

jammed or be otherwise pressed accidentally.

Ten seconds before time-out occurs, ‘TOT’ will

ﬂash on the display. Once time-out has occurred an

alert beep will be heard and the radio will return

to receive mode. If the PTT remains pressed, ‘TOT’

will continue ﬂashing on the display until the PTT

is released. Normal operation will then be restored.

BACKLIGHTING

The Liquid Crystal Display and keys are backlit for

easier viewing at night. The backlight remains on

whenever the radio is switched on.

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Gme TX3120S User Manual Page 12

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