Operating Your Radio - Cobra MR HH450 DUAL Owner's Manual

Advanced Operation

Operating Your Radio

VHF Marine Radio Protocols Introduction
Burp Feature
16 and Scan
Cobra's Burp feature allows the operator to expel water from
inside the speaker grill. This is especially useful if the radio is
dropped overboard or during extreme foul weather
conditions. In these conditions, water can become trapped in
the speaker grill and muffle the audio.
To Activate Burp:
1. Press and release the 16/9 and SCAN keys at the
Burp Feature same time.
GMRS 2. The Burp tone(s) at maximum level will sound
VHF
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from the internal speaker for eight seconds.
X
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3. During this time, the matrix will display BURP.
A
B
U C I
4. Hold the radio with the speaker grill down to help
ATIS VOX LOMEDHI SAME MEM
the water drain out.
5. After an 8-second interval, the radio will return to
standby.
Floating Radio
This radio is designed to float if dropped overboard. The
orange center makes it visible and easy to retrieve. This
rugged radio is also designed to meet JIS7 (IPX7)
specifications. This means it's designed to operate properly
after being submerged in one meter deep water for 30
minutes.
NOTE
Do not leave the radio floating in water permanently.
This could cause premature corrosion of the battery
contacts and other damage.
The radio is only designed to float with its included
Lithium-ion battery. Using other approved batteries
might cause the radio to sink. This includes the optional
AA battery tray, depending on the weight of the AA
batteries used.
50 English
Operating Your Radio
Operating Your Radio VHF Marine Radio Protocols
Marine (VHF), GMRS and Weather Standby
Transmit (Tx) Icon
V
Band Selections
R
X
The BAND button allows you to quickly toggle between the
T
Marine (VHF), GMRS and WX Alert Standby bands.
To Make a Band Selection:
A
Press BAND button to toggle between the Marine (VHF)
Receive (Rx) Icon V
Standby, GMRS Standby or WX Standby.
R
X Marine (VHF) Standby Mode
T
Marine Standby mode is the default mode for the radio
whenever it is turned On. From this mode, you can change
A
current settings by becoming familiar with the different key
functions. While in Marine Standby mode, the user will be
able to Transmit (Tx) by pressing the Push to Talk (Talk)
button. Signals in Receive (Rx) mode will be received on
the selected channel(s).
NOTE
Coast Guard alerts are broadcast on Channel 16 and
you need to have the WX Alert or SAME turned On to
receive NOAA weather alerts. While in Marine
Standby mode, you will receive any messages sent on
the channel to which you are tuned.
Nothing Comes Close to a Cobra ® 51