Thomson 3-5811 User Manual

TriSquare Communications

Page 1

1)  On/Off/Volume

– Turn

counter-
clockwise to

power

ON and increase
listening volume.

Rotate

clockwise  to
decrease volume

and 

turn

power OFF.

2)  PTT (Push to

Talk) –

Press to transmit,

release

to receive.

3)  PAGE – Press to

send  a

call tone to other

radios

tuned to the

same

channel.

4)  CHANNEL  (up/down)  – Press the up arrow to

increment and down arrow to decrement.

5)  MON – Press to deactivate the automatic squelch

feature and listen to the air traffic on the current
channel before initiating transmission.  Press the
MON button again to return to standby.

6)  MODE – Use for setting individual CTCSS

codes and selecting call tones.

7)  Accessory Jack – Insert optional headphones

into the accessory jack to listen to calls.  This will
disable the built-in speaker.

8)  MIC – Built-in microphone

9)  Speaker – Built-in speaker

10) Antenna

1)  Battery Icon – Indicates the battery level.  When

the batteries are nearly drained, the icon will start
to blink, and the unit beeps peridically.

2)  RX icon – Indicates when the unit is receiving a

transmission.

3)  TX icon – Indicates when the unit is transmitting.
4)  Subcode CTCSS icon – Shows the current sub

code number (0-38).

5)  Channel number – Shows the current channel

(1-14).

6)  CALL icon – Displays call tone number (1-5).
7)  Lock Icon – Displays when the keypad lock is

turned on.

Your radio uses 3 AA Alkaline batteries for power.
To install the batteries:
1)  Remove the battery compartment door by

sliding it down from the unit.

2)  Install 3 AA Alkaline batteries (not included)

into the battery compartment.  Be certain to
follow the + and – symbols in the compartment.
Installing the batteries incorrectly will prevent
the unit from operating.

Note:  In order to maintain your user settings
(CTCSS code assignment, current channel, etc.)
make sure the unit is off before removing the
batteries.  Your settings will remain for
approximately 10 minutes while you install the new
batteries.

When the batteries in the unit are low, the unit will
emit a “low battery” tone indication.  Replace the
batteries immediately to continue using the radio.

To install the belt clip, line up the grooves on the
clip with the grooves on the back of the unit.  Push
downward until it snaps into place.

To remove the belt clip, release the snap with your
finger or a tool while firmly pushing the clip upward.

1.  Turn on power.
2.  Check the battery condition on the display
3.  Set to desired channel.
4.  Adjust volume to comfortable level.

Press the PTT button.  Speak slowly and clearly 2-3
inches from the microphone.  To avoid cutting off
the first part of your transmission, pause slightly
after pressing the PTT button before you start
talking.  The transmit symbol is displayed while the
unit is transmitting.

When you are finished talking, release the PTT
button to listen to the transmission.  The receive icon
is displayed while the unit is receiving.