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Power On/Off
To turn the radio on or off:
1. Press and hold the Power On/Off
the radio on.
• The LCD display will show all icons for one second and then
display the most recent selected channel.
2. Press and hold the Power On/Off
the radio off.
• LCD display will go blank when the radio turns off.
Channel Selection
IMPORTANT! To communicate between two MXT105B radios, both radios
must be set to the same channel and privacy code (see Selecting a
Privacy Code) selections.
1. Be sure the radio is turned on (see Power On/Off).
2. Press the Channel Up
channels. Press the Channel Down
through the available channels.
• The Channel icon on the LCD will show the currently selected
channel.
Transmitting and Receiving a Call
1. To transmit a call, press and hold the PTT button on the microphone,
and speak into the microphone in a normal voice.
• The RX/TX
transmitting.
NOTE: For maximum clarity, hold the microphone 2 to 3 inches from your
mouth when speaking.
2. To receive a call, release the PTT button on the microphone.
• The RX/TX
receiving a transmission.
3. If necessary, press the Volume Up
increase or decrease radio volume.
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button to scroll forward through the available
icon will show continuously on the LCD display while
icon will show on the LCD display when your radio is
button for two seconds to turn
button for two seconds to turn
button to scroll backward
or Volume Down
Model MXT105B
button to
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