
MR HH450 DUAL
Printed in China Part No. 480-907-P Version A
Own
e
r’
s
M
a
n
u
a
l
Nothing
Comes Close to a Cobra
®
English
A1
English
Our Thanks to You and
C
ustomer A
ssistance
I
nt
r
oduc
t
i
on
O
ur T
ha
nk
s to You
•
Thank
you
for
purchasi
ng
a
C
obra
VH
F/
G
M
RS
D
ual
Band
radi
o.
Properl
y
used,
thi
s
C
obra
®
product
w
i
l
l
gi
ve
you
m
any
years
of
rel
i
abl
e
servi
ce.
HowYour
Cobr
a
VHF/
GMRS
Radi
o
W
or
ks
T
h
is
d
u
a
l b
a
n
d
ra
d
i
o
is
a
b
a
tte
ry
-p
o
w
e
re
d
p
o
rta
b
le
tra
n
s
c
e
iv
e
r fo
r u
s
e
a
flo
a
t o
r o
n
l
a
n
d
. In
M
a
rin
e
VHF
m
o
d
e
it g
i
v
e
s
y
o
u
tw
o
-w
a
y
v
e
s
s
e
l-to
-v
e
s
s
e
l a
n
d
v
e
s
s
e
l
-to
-s
h
o
re
s
ta
ti
o
n
c
o
m
m
u
n
ic
a
ti
o
n
s
, p
rim
a
rily
fo
r s
a
fe
ty
a
n
d
s
e
c
o
n
d
a
rily
fo
r n
a
v
ig
a
tio
n
a
n
d
o
p
e
ra
tio
n
a
l
p
u
rp
o
s
e
s
.
In
GM
RS m
o
d
e
i
t a
llo
w
s
y
o
u
to
re
a
c
h
o
th
e
r GM
RS c
a
p
a
b
l
e
ra
d
io
s
fo
r s
h
o
rt-d
is
ta
n
c
e
tw
o
-w
a
y
la
n
d
m
o
b
i
le
c
o
m
m
u
n
ic
a
tio
n
. T
h
i
s
m
o
d
e
is
n
o
rm
a
ll
y
u
s
e
d
fo
r s
m
a
ll g
ro
u
p
c
o
m
m
u
n
ic
a
tio
n
s
u
c
h
a
s
in
a
g
e
n
e
ra
l re
s
id
e
n
tia
l a
re
a
o
r d
u
rin
g
re
c
re
a
tio
n
a
l g
ro
u
p
o
u
tin
g
s
.
No
te
: GM
RS ra
d
io
u
s
a
g
e
re
q
u
ire
s
a
n
F
CC L
ic
e
n
s
e
.
Custom
er A
ssista
nc
e
•
Sh
o
u
ld
y
o
u
e
n
c
o
u
n
te
r a
n
y
p
ro
b
l
e
m
s
w
ith
th
is
p
ro
d
u
c
t, o
r n
o
t u
n
d
e
rs
ta
n
d
its many features, please refer to this owner’s manual. If you require further
assistance after reading this manual, Cobra Electronics offers the following
customer assistance services:
For Assistance in the U.S.A.
Automated Help Desk
English only.
24 hours a day, 7 days a week 773-889-3087 (phone).
Customer Assistance Operators
English and Spanish.
8:00 a.m. to 5:30 p.m. Central Time Mon. through Fri. (except holidays)
773-889-3087 (phone).
Questions
English and Spanish.
Faxes can be received at 773-622-2269 (fax).
Technical Assistance
English only.
www.cobra.com (on-line: Frequently Asked Questions).
English and Spanish. productinfo
@
cobra.com (e-mail).
For Assistance Outside the U.S.A.
Contact Your Local Dealer
C
us
tom
e
r
A
s
s
i
s
ta
nc
e
©
2013 Cobra Electronics Corporation
6500 West Cortland Street
Chicago, Illinois 60707 USA
www.cobra.com
A2
English
R
adio C
ontrols
and Indicators
MEM
SA
ME
A
TIS VOX H
I
ROG
V
HF
T
R
A
B
GMRS
X
C
I
U
Instant
Channel
16/9 Button
Channel
Up Button
O
N
/
O
FF/
V
ol
um
e
C
ont
rol
S
peaker/
M
i
crophone
E
xt
ernal
C
over
A
nt
enna
B
ackl
i
t
LC
D
S
creen
Tri-Watch
Button
B
at
t
ery
Backlight/
Key Lock
Button
Memory/Escape
Button
P
ush
t
o
T
al
k
B
ut
t
on
C
hannel
D
ow
n
Button
Speaker
B
el
t
C
l
i
p
B
at
t
ery
D
oor
S
crew
Power
Level/Weather
Button
SCAN Button
Call/E
nter/
S
etup Button
VHF/GMRS
Microphone
Rewind-S
ay-Again
®
Button
Band Button
MRHH450DUAL_BODY_MRHH330_ENG_Body 12/5/13 5:57 PM Page 1

MEMSAMEVOX
ROG
VHF
T
GMRS
X
U
A
B
LOMEDHI
Introduction
Backlit LCD (Liquid Crystal Display) Screen
•
UIC Active Channel Map Icons
Button Lock Icon
Low/Medium/High
Power Icons
Power Settings
Selectable power settings produce
1, 3 or 6 Watts (marine) and 1, 3 or 4.5
Watts (GMRS) of output power for
near or distant calling.
USA/International/Canada Channels
Allows operation on any of the three (3)
different channel maps established for
these areas.
All NOAA Weather Channels
Instant access to all National Weather
Channels, 24 hours a day.
Submersible to JIS7/IPX7 Standards
Waterproof to 3.3 ft (1 m) of water
for 30 minutes.
Button/Key Lock
Prevents accidental setting changes
when button lock is set.
Channel Scan/Memory Scan
Use to scan through unlimited
channels or memory locations
to find conversations in progress.
Matrix Display
The display at the bottom of the LCD
screen displays text letting the user know
the current radio mode, function or
operation.
AA Battery Compatible
Good for emergency backup.
Includes AA battery tray (P/N CM 110-024).
Instant Channel 16/9
Provides instant access to priority
Channel 16 and calling Channel 9.
Tri-Watch
Use to monitor three (3) channels
at once — Channel 16 and two (2)
programmable channels.
Floating
This radio will float if dropped overboard.
Must use included battery to float.
120V/12V Charger Included
Use to charge battery pack, at home,
in a car or in a boat.
Product Features
•
Backlit LCD Screen
and Product Features Product Features
Introduction
Bands
Dual VHF (Very High Frequency) and
GMRS (General Mobile Radio Service)
bands allow you to use different
frequencies while using this radio either
on land or water. VHF can be used for
two-way vessel-to-vessel and vessel-toshore station communications.
GMRS can be used for small group
communication such as in a general
residential area or during recreational
group outings. Note: GMRS radio usage
requires an FCC License.
Rewind-Say-Again
®
Replays missed VHF and GMRS calls.
Locking Desktop Charger
Holds the radio or battery in place while
charging. Vertical or horizontal mounting.
Call Tones (Selectable)
10 selectable call tones
Emergency Weather Alert with SAME
Can alert you with an audible tone and
visual alarm if threatening weather is
nearby. The SAME alerts provide you with
additional alerts for specific local areas.
Speaker/Mic Jack
Allows connecting optional Cobra
Lapel Speaker/Mic and other Cobra
accessories.
Unlimited Memory Channels
Allows programming of unlimited
VHF and GMRS memory channels.
15 GMRS Channels
Seven (7) shared with GMRS/FRS and
eight (8) GMRS only.
121 Privacy Codes
Allows semi-secure communications,
creating up to 1815 privacy combinations
(38 CTCSS codes-83 DCS codes).
Signal Strength Meter
Shows the strength of incoming or
outgoing signals.
Noise Canceling Microphone
Reduces effect of environmental
noise when speaking.
Illuminated Buttons
Allows high visibility of all function
buttons.
Roger Beep Tone (Selectable)
Confirmation tone indicates the
completion of the user’s transmission
and signals to others it is clear to talk.
On or Off selectable.
BURP
The Cobra exclusive BURP feature expels
water from the speaker grill if the unit is
dropped in the water or is subjected to
extreme rain and weather.
Product Features (continued)
•
A4
English
Introduction
Notes
Call Alert Icon
Weather Alert Icon
Frequency Band Icons
Roger Beep Icon
Battery Power Icon
Memory Icon
Matrix Display
VHF Simplex
Operation Icon
Weather Icon
Active Channel
T
ransmit and
Receive Icons
K
ey Tone
I
con
Signal Level
Icon
Left blank intentionally for your notes
Rewind-Say-Again®Icon
VOX Icon
S.A.M.E. Icon
MRHH450DUAL_BODY_MRHH330_ENG_Body 12/5/13 5:57 PM Page 4

1
Nothing Comes Close to a Cobra
®
Table of Contents
Introduction
Our Thanks to You . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1
Customer Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1
Radio Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2
Backlit LCD (Liquid Crystal Display) Screen . . . . . . . . . . . . . . . . . . . . . . . . A3
Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A3
Important Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Recommendations for Marine Communication . . . . . . . . . . . . . . . . . . . . . . 4
VHF Marine Radio Protocols
Radio Check Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
VHF Radio Procedures and SAME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Installation
Included in this Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Install/Remove Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Wrist Strap and Belt Clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Batteries and Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Operating Your Radio
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
VHF Mode Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Weather Mode Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
GMRS Mode Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Advanced Operation (Rewind-Say-Again, Tri-Watch, BURP, etc.) . . . . . . . . 44
Floating Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Operating Your Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Maintenance and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Warranty and Trademark
Limited 3-Year Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Trademark Acknowledgement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Customer Service
Product Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
FCC Licensing Information
VHF Licensing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
GMRS Licensing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Appendix
GMRS/FRS Frequency Allocation and Compatibility . . . . . . . . . . . . . . . . . .63
VHF Marine Channel Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Weather Channel Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
MRHH450DUAL_BODY_MRHH330_ENG_Body 12/5/13 5:57 PM Page 1

3
Nothing Comes Close to a Cobra
®
General Precautions
General Precautions
•
The following WARNINGS and NOTICE information will make you aware of RF
exposure hazards and how to assure you operate the radio within the FCC RF
exposure limits established for the radio.
WARNINGS
Your radio generates electromagnetic RF (radio frequency) energy when it is transmitting.
To ensure that you and those around you are not exposed to excessive amounts of
that energy, DO NOT touch the antenna when transmitting. KEEP the radio at least
two (2) inches (5 cm) away from yourself and others when transmitting.
DO NOT operate with more than a duty cycle of 5% transmit, 5% receive and
90% standby. The radio is transmitting when the Talk button is pressed and the
transmit information shows on the LCD screen.
ALWAYS use only Cobra authorized accessories.
DO NOT operate the radio in an explosive atmosphere, near blasting sites,
or in any area where signs are posted prohibiting radio transmissions.
NEVER place the transceiver or microphone/speaker where they might interfere
with operation of your vessel or cause injury.
DO NOT allow children or anyone unfamiliar with proper procedures to operate
the radio without supervision.
Failure to observe any of these warnings may cause you to exceed FCC RF
exposure limits or create other dangerous conditions.
Introduction
2
English
Important Safety Information
Introduction
Important Safety Information
•
Before installing and using your Cobra VHF/GMRS Dual Band radio, please
read these general precautions and warnings.
Warning and Notice Statements
To make the most of this radio, it must be installed and used properly.
Please read the installation and operating instructions carefully before installing
and using the radio. Special attention must be paid to the WARNING and NOTICE
statements in this manual.
WARNING
Statements identify conditions that could result in personal injury or loss of life.
NOTICE
Statements identify conditions that could cause damage to the radio
or other equipment.
Safety Training Information
This Cobra VHF/GMRS Dual Band radio also complies with the following guidelines
and standards regarding RF energy and electromagnetic
energy levels as well as evaluation of those levels for human exposure:
■
FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with
FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields.
■
American National Standards Institute (C95.1-1992), IEEE Standard for Safety
Levels with Respect to Human Exposure to Radio Frequency Electromagnetic
Fields, 3 kHz to 300 GHz.
■
American National Standards Institute (C95.3-1992), IEEE Recommended
Practice for the Measurement of Potentially Hazardous Electromagnetic
Fields — RF and Microwave.
■
Industry Canada RSS-102-Radio Frequency (RF) Exposure Compliance of
Radiocommunication Apparatus (All Frequency bands).
Conformité d'exposition de la fréquence du Canada RSS-102-Radio d'industrie
(rf) de l'appareillage de communication par radio (toutes les bandes de
fréquence).
Industry Canada Antenna Notice
Under Industry Canada regulations, this radio transmitter may only operate using an
antenna of a type and maximum (or lesser) gain approved for the transmitter by
Industry Canada. To reduce potential radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent isotropically radiated power
(e.i.r.p.) is not more than that necessary for successful communication.
Avis d'antenne du Canada d'industrie
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut
fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé
pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage
radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et
son gain de sorte que la puissance isotrope rayonnée quivalente (p.i.r.e.) ne dépassepas
l'intensité nécessaire à l'établissement d'une communication satisfaisante.
MRHH450DUAL_BODY_MRHH330_ENG_Body 12/5/13 5:57 PM Page 2

5
Nothing Comes Close to a Cobra
®
Radio Check Procedure
4
English
General Precautions
Introduction
NOTICE
Your radio is waterproof only when the batteries are properly installed.
AVOID using or storing the radio at temperatures below -4˚F (-20˚C) or above
140˚F (60˚C).
KEEP your radio at least 3 ft (0.9 m) away from your vessel’s magnetic
navigation compass.
DO NOT attempt to service any internal parts yourself. Have any necessary
service performed by a qualified technician.
This radio is supplied with a lithium-ion (LiON) rechargeable battery pack.
■
Use only the Cobra charger to recharge lithium-ion (LiON) batteries in the radio.
■
Do not short circuit the battery pack.
■
When replacing the batteries, dispose of the old batteries properly. Batteries
may explode if disposed of in a fire.
Changes or modifications to your radio MAY VOID its compliance with
FCC (Federal Communications Commission) rules and make it illegal to use.
Recommendations for Marine Communication
•
The frequencies your radio uses are set aside to enhance safety afloat and for vessel
navigation and operational messages over a range suitable for nearshore voyages.
If the 6 watt maximum output of your radio is not sufficient for the distances you travel
from the coast, consider a higher powered handheld or installing a Cobra Marine fixed
mount radio with up to 25 watts of output power. (Visit www.cobra.com or your
local dealer for model availability.)
If traveling far offshore, you should consider adding even more powerful radio
equipment such as HF single side band or satellite radio for your vessel.
The U.S. Coast Guard does not endorse cellular telephones as substitutes for marine
radios. They generally cannot communicate with rescue vessels and, if you make
a distress call on a cellular telephone, only the party you call will be able to hear
you. Additionally, cellular telephones may have limited coverage over water and
can be hard to locate. If you do not know where you are, the Coast Guard will have
difficulty finding you if you are using a cellular telephone.
However, cellular telephones can have a place on board where cellular coverage
is available — to allow social conversations and keep the marine frequencies
uncluttered and available for their intended uses.
Introduction
Sea Tow Automated Radio Check (ARC) System
Please try the Sea Tow Automated Radio Check service. Areas where the safety check
service is available include the East Coast, Gulf of Mexico, and Southern California,
as well as in select inland regions. The first and only boating safety program of its
kind, the Sea Tow Automated Radio Check service is fully automated and allows 24
hour a day automatic responses to radio check calls.
Conducting a radio check through the Sea Tow Automated Radio Check service
couldn’t be simpler. All boaters need to do is tune their VHF radios to Channel 24, 25,
26, 27 or 28, depending on the region, key the mic, and ask for a radio check. The
Automated Radio Check system responds to each radio check with an automated
reply, and also replays to the boater’s original radio transmission, allowing him or her
to assess the strength of the signal and confirm the VHF radio is in good working
order.
To find the Sea Tow Automated Radio Check service channel in an area, owners
should visit http://www.seatow.com/arc. The web page links to an instructional video
demonstrating how to use the service step by step.
MRHH450DUAL_BODY_MRHH330_ENG_Body 12/5/13 5:57 PM Page 4