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VHF Marine Radio Protocols
Intro
Operation
Customer
Assistance
Warranty
Notice
Main Icons
Secondary Icons
Caution
Warning
Installation
Customer
Assistance
Operating Your Radio
15
Nothing
Comes Close to a Cobra
®
Getting Started
Channel Up/Down Buttons
Your radio will
Receive (Rx)
and
Transmit (Tx)
VHF signals on
the channel indicated on the LCD display . You can change the
channel at any time using the
Channel Up/Down
buttons .
To Change Channels:
Press the
Channel Up/Down
button .
If you are on Channel 88, pressing the
Channel Up
button will advance to Channel 01 . If you are on Channel
01, pressing the
Channel Down
button will advance to
Channel 88 .
You can press and hold the
Channel Up/Down
button
for fast advance . If the new channel selected is restricted
to low power, the radio will automatically switch to
Low
Power
mode and the
Low Power
icon will appear on the
LCD .
If the radio is in the
Key Lock
mode, the channel will not
change and the three (3) beep error signal will sound .
High/Medium/Low (H/M/L) Power Selection
Your radio can transmit selectively at 1, 3 or 6 watts of power .
Cobra suggests you maintain the low power setting for short-
range communications . You will conserve battery life and avoid
overpowering nearby stations with a low power setting signal .
Use the high power setting for long-range communications or
when you do not receive a response to a signal sent at 1 watt .
To Toggle Between H-M-L Power Modes:
Press the
MORE
soft key until the screen shows as illustrated .
Pres the
H-M-L
soft key to set the power 1W, 3W, or 6W .
The LCD will show which mode is in effect . Some channels
are restricted for a maximum use of 1 watt . Your radio will
automatically set the power to
Low Power
mode when you
select those channels .
Intro
Operation
Customer
Assistance
Warranty
Notice
Main Icons
Secondary Icons
Caution
Warning
Installation
Customer
Assistance
NOTE
Some channels, frequency bands and countries of use
might not be able to operate in
High Power
mode .
Intro
Operation
Customer
Assistance
Warranty
Notice
Main Icons
Secondary Icons
Caution
Warning
Installation
Customer
Assistance
NOTE
A few channels are Receive only and will not transmit in
these channels .
Channel Up/Down Buttons
88
A
EMERGENCY
USA 6W
32 49.800N
999 11.077W
DATE:06/30
TIME:10:00 LOC
WX
MENU
CALL MORE
Currently On Channel 88
VHF Marine Radio Protocols
Intro
Operation
Customer
Assistance
Warranty
Notice
Main Icons
Secondary Icons
Caution
Warning
Installation
Customer
Assistance
Operating Your Radio
14 English
Getting Started
MOB
SQL
16+
MARINE HH600 DSC+GPS
SCAN
H/M/L
MEM MORE
16
A
EMERGENCY
USA 6W
32 49.800N
SOG: 3.7
KTS
COG: 015
M
999.11.077W
DATE:06/30
TIME:10:00 LOC
H/M/L Power Button
EMERG
USA 6W MEM
41° 54.523N
087° 47.192W
DATE:06/01
TIME:10:00
SCAN
H/M/L
MEM MORE
ROG
16
SCAN Button
SCAN
Press and release the
SCAN
soft key to scan all channels . Scanning
begins at the selected lower channel, and scans to higher channels .
Press the
Channel Up/Down
button to change the scan direction .
When a signal is received in
SCAN
mode, the radio will pause 10
seconds before resuming
SCAN
operation . The scan will stop on the
paused channel and remain there when the
Talk
button is pressed .
If memory channels are saved, press and release the
SCAN
button to
scan all memory channels .
Intro
Operation
Customer
Assistance
Warranty
Notice
Main Icons
Secondary Icons
Caution
Warning
Installation
Customer
Assistance
NOTE
If even one memory channel is saved, SCAN will only scan
memory channels .
Squelch Control
Squelch Control
filters weak signals and radio frequency (RF) noise
so that you will clearly hear the signals you want .
The
Squelch Control
on this radio is set through the following
keypad operation .
To Set Squelch Control:
1.
With the power On, press the
SQL
button to access the
squelch screen .
2.
Press the
Channel Up
and
Channel Down
soft keys to set
level . The signal level graphic shows squelch level 1 - 8 .
3.
To adjust your squelch, press the
Channel Down
soft
key until you hear a hissing sound, then press
and release the
Channel Up
soft key until the hissing
stops . This will establish a “Baseline” squelch .
4.
By pressing the
Channel Up
soft key further, you will filter
weak and medium strength signals . By pressing
Channel
Down
soft key, you will receive weaker signals .
5.
Press the
Enter
soft key to save this entry and move to the
next
Setup
mode programming .
Intro
Operation
Customer
Assistance
Warranty
Notice
Main Icons
Secondary Icons
Caution
Warning
Installation
Customer
Assistance
NOTE
If the
Squelch
is set so that you can hear a continuous hissing
sound, the
Memory Scan
and
Tri-Watch
functions will be
unusable .
Squelch Control
MRHH600EU_ENG_MANL.indd 14-15
4/4/17 2:55 PM