VHF Marine Radio Protocols
Operating Your Radio
33
Nothing
Comes Close to a Cobra
®
Advanced Operation
Tri-Watch Mode
Tri-Watch
mode gives you one (1) button access to scan
a total of three (3) channels of most importance to you.
Channel 16 is preprogrammed and will always be one (1)
of the scanned locations. Two (2) other channels of your
choice can be stored in the radio. These channels can be
edited and/or recalled during future engagements of
Tri-Watch
mode.
NOTE
The radio must be squelched for
Tri-Watch
mode to
function. See page 18 for
Squelch
procedure.
Tri-Watch Setup
To Program or Edit the Tri-Watch Channels:
1.
Press and hold the
TRI-WATCH
button from
Marine
Standby
mode for two (2) seconds to activate
Tri-Watch Setup
mode. The
MEM
icon on the display
will turn On and the matrix will display
TW MEM
ENTER 01
.
NOTE
The main channel number will flash to indicate channel
position. If there is no input activity for 15 seconds, the
radio will sound three (3) beeps and return to
Marine
Standby
mode.
2.
Press
Channel Up/Down
button to select the desired
Tri-Watch
channel.
3.
Press and release
TRI-WATCH
button or
Call/Enter/Setup
button to confirm entry.
4.
Repeat steps 2 and 3 to program the remaining
additional
Tri-Watch
memory channel.
5.
After programming both
Tri-Watch
memory
channels the radio will immediately engage
Tri-Watch
mode.
TW
ESC
MEM
ENT SET
CALL
TRI-WATCH Button
MEM
SAME
ATIS
VOX
LO
MEDHI
VHF
T
R
A
B
GMRS
X
C
I
U
TRI and MEM Icons
ENT SETUP
CALL
MARINE HH50
Channel Up/Down Button
VHF Marine Radio Protocols
Operating Your Radio
32 English
Advanced Operation
Using Tri-Watch
Tri-Watch Scan Mode:
1.
From
Marine Standby
mode, press the
TRI-WATCH
button. The
TW SCAN
will display on the matrix
along with the three marine channels stored in the
Tri-Watch
memory.
2.
The radio will scan through the three (3)
Tri-Watch
memory channels.
3.
A signal on any one (1) of the three (3) channels will
stop the scan for 10 seconds to allow you to listen to
the traffic on that location.
NOTE
After the
Tri-Watch
scan stops to monitor a channel,
as long as you do not press any buttons within 10
seconds, your radio will automatically resume
scanning the
Tri-Watch
channels.
4.
Press the
Channel Up/Down
button to resume
scanning the
Tri-Watch
channels or to change the
scan direction.
5.
To EXIT the
Tri-Watch
scan, press the
TRI-WATCH
button again, and the radio will return to
Marine
Standby
mode.
TW
ESC
MEM
ENT SETUP
CAL
TRI-WATCH Button
MEM
SAME
ATIS
VOX
LO
MEDHI
VHF
T
R
A
B
GMRS
X
C
I
U
Tri-Watch Scan Mode
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