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VHF Marine Radio ProtocolsOperatingYour Radio VHF Marine Radio ProtocolsOperatingYour Radio
11
Nothing Comes Close to a Cobra
®
10
English
Getting Started Getting Started
Getting Started
•
Refer to the foldout at the front of this manual to identify the
various controls and indicators on your radio. Throughout
this manual you will be instructed to “Press” or to “Press
and Hold” various buttons (except “Push to Talk”) on the
radio. “Press” means a momentary press of approximately
one (1) second. “Press and Hold” means to hold the button
down for approximately three (3) seconds.
Whenever you press any button except the Talk button on
your radio, a brief tone (beep) will sound to confirm the
button press. With all button presses, the appropriate icon
will appear on the LCD and the backlight will turn On. The
backlight will stay On for 10 seconds after the button is
released.
At times, you will hear two (2) other sounds. Two (2) beeps
will sound to confirm your setting changes and three (3)
beeps will sound to notify you of an error.
Common Radio Functions
The following procedures define common operating functions of the radio when in
either Marine Standby or Weather (WX) Standby modes.
Power/Volume Control
Power On/Off Control
The On/Off/Volume control is located at the upper right side
of the radio. Turning the On/Off/Volume control past the
detent position will turn the radio On or Off.
Power Saver
Your radio has a unique circuit designed to extend battery life. If
there are no transmissions, signals, or button presses for ten
(10) seconds, the radio will automatically switch to Power
Save mode. Signal reception or any button press will take the
radio out of Power Save mode.
Volume Control
Volume is controlled by turning the On/Off/Volume control.
■ To increase the volume, turn the On/Off/Volume control
clockwise.
■ To decrease the volume, turn the On/Off/Volume control
counterclockwise.
Radio Speaker and Microphone
The internal Radio Speaker and Microphone are located on the
bottom front face of the radio below the lower control buttons.
An optional
Speaker/Microphone jack is located at the top of
the radio between the antenna and the On/Off/Volume control.
Flip the protective cap open and insert the plug into the jack.
Talk Button
Press and hold the Talk button to transmit messages.
Release the Talk button to stop transmitting. If the Talk
button is pressed while on a receive only channel, a three
beep error signal will sound.
Squelch Control
This radio is equipped with an automatic squelch control.
Squelch filters weak signals and radio frequency (RF) noise
so you can hear the main signal clearly.
To receive weak signals, the automatic squelch can be
turned Off (opened) by pressing the Squelch Defeat button.
You will likely hear a lot of static and RF noise along with
the weak signal.
Press the Squelch Defeat button for up to five (5) seconds to
briefly open squelch. To hold squelch open for longer periods,
press and hold the Squelch Defeat button for more than five
(5) seconds. Squelch will remain open until you press the
Squelch Defeat button again or you change channels.
Squelch Control
Speaker/Mic Jack
Talk Button
On/Off/Volume Control
(Counterclockwise)
On/Off/Volume Control
(Clockwise)
MR HH125 Radio