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from the radio. Once the PTT has been released the TOT is
reset and transmissions can recommence.
BACKLIGHTING
The Liquid Crystal Display and keys are backlit for easy
viewing at night. The backlighting remains on at while the
TX3500S is switched ON.
Adjusting the backlighting
The backlighting brightness and colour can be adjusted for
personal preference. There are three settings available;
br' - Brightness Setting: Provides a continuously variable
brightness adjustment from very dim to full brightness.
'cL' - Colour Setting: Provides a continuously variable
colour change via a smooth blend of Red, Green and
Blue colours.
'Li' - Lightness Setting: Provides a continuously variable
lightness or colour saturation of the selected colour
from full colour to white (no colour).
To make adjustments to the backlighting,
1. Press and hold the Channel Control to enter the Menu.
'br' will be displayed indicating the Brightness mode
is selected.
2. Rotate the Channel Control to adjust the display
brightness.
3. Briefly press the Channel Control to select the Colour
mode. 'cl' will be displayed.
4. Rotate the Channel Control to adjust the colour.
5. Briefly press the Channel Control to select the Lightness
mode. 'Li' will be displayed.
6. Rotate the Channel Control to adjust the lightness
(saturation) of the chosen colour. For the deepest colour
range, reduce the lightness setting.
When finished, press and hold the Channel Control to
return to normal operation.
NOTE:
The Menu function will automatically time out after 6
seconds if no further adjustments have been made.
T X 3 5 0 0 S
BEEP TONE VOLUME
The Key Beeps provide audible feedback whenever the keys
are pressed. You can adjust the volume of the key beeps
as follows.
1. Press and hold the Channel Control to enter the Menu.
'br' will be displayed.
2. Press the Channel Control repeatedly until 'bP' (Beep)
is displayed.
3. Rotate the Channel Control clockwise to increase the
Beep volume or counter-clockwise to decrease the Beep
volume. The signal meter bars will increase or decrease
with the volume level setting.
When finished, press and hold the Channel Control to
return to normal operation.
BANDWIDTH FILTER SETTINGS
The TX3500S is fitted with two user-selectable receiver
bandwidth filters which allow the receiver to be adjusted
for either wide or narrow band reception on channels
1 – 40. This feature provides additional compatibility
with older 40-channel radios. The wide setting increases
the tolerance of the TX3500S receiver to older wideband
40 channel radios or to signals that might be slightly off
frequency. The narrow setting increases the selectivity of the
receiver to help reduce interference from strong interfering
signals on adjacent channels.
To change the filter setting
1. Press and hold the Channel Control to enter the Menu.
'br' will be displayed.
2. Press the Channel Control repeatedly until 'FL' (Filter)
is displayed.
3. Rotate the Channel Control clockwise to select the
Narrow Band Filter. The close spacing of the signal meter
bars confirms the Narrow Band Filter is selected.
I N S T R U C T I O N M A N U A L
PA G E 7
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