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1. OPERATIONAL OVERVIEW
1.1 Controls
Transceiver unit
Description of controls for transceiver unit
Control Function
VOLUME/PWR knob • Turns the power on or off.
• Adjusts the volume.
CHANNEL/ENTER
knob
• Rotate to select channel.
• Rotate to select menu items or change the page in multi-page screens
(e.g., log data); push to confirm a selection.
SQUELCH knob Rotate to adjust the squelch. The squelch mutes the audio output in the ab-
sence of an incoming signal. AUTO position automatically reduces white
noise.
DISTRESS key Press and hold down the key four seconds to transmit the distress alert.
DISTRESS MSG key Composes DSC TX message for DISTRESS ALERT.
OTHER DSC MSG
key
Composes DSC TX message except DISTRESS ALERT and DROBOSE
(Distress Relay On Behalf Of Someone Else).
DROBOSE MSG key Composes DSC TX message for DROBOSE (Distress Relay On Behalf Of
Someone Else). Press the DISTRESS MSG key and the OTHER DSC
MSG key simultaneously.
BRILL key Adjusts the brilliance.
TAB key • Switches control to the tab area.
• Switches the session.
key
Turns the main speaker on or off.
MENU key Opens/closes the menu.
CANCEL key • Cancels the creation of the DSC message currently being created.
• Silences the audio alarm.
• Erases error message and pop-up message.
• Returns previous layer in multi-layer menu.
• Erases character input.
RT/REGION key • Switches to the RT (radiotelephone) screen.
• Opens/closes the option window for channel region.
HI/LO key Changes the output power to high (25 W) or low (1 W).
CH16 key Switches to the RT (radiotelephone) screen and sets CH16.
RT/
REGION
HI/LO
1
23
46
97
5
8
0
COMPOSE
DROBOSE MSG
PUSH TO ENTER
DISTRESS
MSG
OTHER
DSC MSG
BRILL
TAB
MENU
CANCEL
HANDSET
VOLUME
PWR OFF
ALARM
DISTRESS
Keep pressed for 4 sec in case
of DISTRESS. The alert is
transmitted with steady lighting.
AUTO
SQUELCH
CHANNEL
CH16
REPLAY
DW/
SCAN