Cobra MRHH400 Owner's Manual page 19

Getting Started
Operating Your Radio
U.S.A./International/Canada Channel Maps
Three (3) sets of VHF Channel Maps have been established for marine use in the
U.S.A., Canada, and the rest of the world (International). Most of the channels
are the same for all three (3) maps, but there are definite differences (see table on
pages 16 through 23). Your radio has all three (3) maps built into it and will
operate correctly in whichever area you choose.
To Set Your Radio For The Area
Weather/UIC Button
In Which You Will Be Using It:
1. From Standby mode, press and hold the Weather/UIC
button for two (2) seconds. The radio will shift one (1)
channel map and the Active Channel Map icon on
the LCD will show the change on the LCD.
Active Channel Map Icon
Repeat step 1 to shift to the next channel map(s).
Channels
Your radio will receive and transmit VHF signals
on the Channel indicated on the LCD. You can change
the Channel at any time using the Channel Up and
Channel Down buttons.
To Change Channels:
Channel Up/Down Buttons
1. Press the Channel Up or Channel Down button.
You are on Channel 88, pressing the Channel Up
button will advance to Channel 1. If you are on
Channel 1, pressing the Channel Down button
will advance to Channel 88.
You can hold the Channel Up or Channel Down
button for fast advance.
Currently On Channel 88
The beep sound will occur only at the first press
of the button and not during 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.
32 English
Getting Started
Operating Your Radio
Transmit Power Output
Low Power Mode
Your radio can Transmit selectively at one (1) or five (5)
watts of power. Cobra
power setting for short-range communications, to conserve
battery life, and to avoid overpowering nearby stations with
your signal. Use the high power setting for long-range
High Power Mode
communications or when you do not receive a response
to a signal sent at one (1) watt.
To Toggle Between The High And Low Power Modes:
1. Press the High/Low Power button. The LCD will show
High/Low Power Button
which mode is in effect.
Some channels are restricted to use at a maximum of
one (1) watt. Your radio will automatically set the power
to Low Power mode when you select those channels.
While using the U.S.A. channel map, if, in an emergency,
you need to increase the output power on Channel 13 and
Channel 67 for your signal to be heard, you can override
the Low Power mode by pressing and holding the High/
Low Power button.
Backlight
The LCD will be illuminated by the Backlight as long as any key is pressed and will
remain on for five (5) seconds after the button is released.
If You Need To Turn On The Backlight
Backlight/Key Lock Button
Without Disturbing Any Settings:
1. Press the Backlight/Key Lock button. The backlight will
remain On for ten (10) seconds.
If the backlight is On, a press of the Backlight/Key Lock
button will turn it Off.
® suggests you maintain the low
Nothing comes close to a Cobra ® 33