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Cobra MR HH125 Manual

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VHF Marine Radio Protocols
Maintenance and
Troubleshooting
26
English
Advanced Operation
Channel Scan Mode
During Channel Scan mode, the radio will rapidly switch
from channel to channel through ALL the channels.
Whenever any activity is detected, the radio will stop the
scan for 10 seconds to allow you to listen briefly on that
channel. The radio will then continue to scan unless you
switch out of the Channel Scan mode.
To Enter Channel Scan:
1. From Marine Standby mode, press and hold the
DUAL WATCH/SCAN button. The radio will immediately
begin to scan the entire channel map selected in
the active channel map. The SCAN icon will show
on the LCD.
2. A signal on any channel will stop the scan for
10 seconds to allow you to listen to the traffic
on that location.
3. Press the Channel Up or Channel Down button
to resume scanning the Channel Scan channels
or to change the scan direction.
4. To EXIT Channel Scan mode, press and hold the
DUAL WATCH/SCAN button again. The SCAN icon
will disappear from the LCD and the radio will
return to Marine Standby mode.
SCAN Button
SCAN Icon
Scanning
Channel Up/Down Buttons
Operating Your Radio
VHF Marine Radio ProtocolsOperating Your Radio
No display on LCD when
radio is turned On
Batteries are exhausted
Batteries not installed
properly
Recharge or
replace batteries
Remove batteries and
reinstall according to
polarity markings
NiMH batteries run
down quickly
Batteries are at the
end of their life
Replace with new
batteries
Will transmit at
one (1) watt, but not
at three (3) watts
Batteries are low
Selected channel is
limited to one (1) watt
Recharge or
replace batteries
Switch to
another channel
Will not transmit Selected channel is
limited to receive only
Switch to
another channel
No sound from speaker Volume level is too low Re-adjust volume
No response to
button press
Button lock is On Press Backlight/
Key Lock button
No answer to calls Out of range of
other station
Signal is blocked
by terrain
Switch to three (3) watts
or move closer
Move until you have a “line-
of-sight” to the other station
Problem Possible Cause(s) Solution(s)
Maintenance
•
Very little maintenance is required to keep your CobraMarine VHF radio
in good operating condition:
■
Keep the radio clean by wiping with a soft cloth and mild detergent. Do not use
solvents or harsh or abrasive cleaners, which could damage the case or scratch
the LCD screen.
■
If the radio is exposed to salt water, wipe with a soft, moist cloth at least once a day to
prevent buildup of salt deposits, which could interfere with button operation.
■
If the radio will be stored for a long period, such as over the winter,
remove the batteries from the battery tray and store them in a separate
package. This is especially important if you are using alkaline batteries.
Troubleshooting
•
27
Nothing Comes Close to a Cobra
®
www.busse-yachtshop.de | info@busse-yachtshop.de
… 16 …


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