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1. OPERATIONAL OVERVIEW
1-2
1.1.2 Controls
The functions of keys of the transceiver unit and the remote station are almost
the same. The table below shows the controls and keys for the transceiver unit.
Control Function
CHANNEL
(PUSH TO
ENTER)
• Selects a channel.
• Moves the cursor in menu opened.
• Registers selected item when pressed.
SQUELCH
• Mutes the receiver when no signal is present on
the channel selected.
• AUTO position automatically reduces white noise.
• With the SHIFT key is pressed, adjust the contrast of the
display.
VOLUME/POWER
• Turns the power on/off and adjusts the volume of the
loudspeaker.
Key Function
DISTRESS
• Transmits the distress alert after pressing three seconds.
When the key is pressed, the LED in the key blinks and the
buzzer sounds. Pressing the key three seconds
continuously the distress alert is transmitted and the LED
lights continuously and buzzer also sounds continuously.
These conditions are continued until the distress
acknowledge is received or you cancel the distress alert.
ALARM
(INDICATOR)
• Blinks in red when a distress alert or urgent call is received.
Also, the acoustic alarm sounds. To stop the blinking and
silence the buzzer, press the CANCEL key.
• Blinks in green when a safety call or routine call is received.
The acoustic alarm sounds and stops automatically five
seconds later.
CANCEL
• Stops audible and visual alarms.
• Erases an error message.
• Cancels numeric entry.
• Returns to previous menu.
• Cancels transmission or printing.
CALL
MSG
• Transmits various DSC messages. To transmit a distress
message, press this key more than three seconds.