Getting Started
Nothing Comes Close to a Cobra
®
25
24 English
Getting Started
Getting Started
•
Refer to the foldout on the front cover 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
buttons on the transceiver. Press means a momentary press, then release; press and
hold means to hold the button.
Tones And Alarms
When your Cobra Marine VHF radio is
On
, you can expect to hear the following tones
and alarms. The volume of these sounds is controlled by the circuitry in the radio and
is not affected by the volume set with the
On-Off Power/Volume
knob.
Confirmation Tone
Single high-pitched beep confirms all button presses except the
Talk
button.
It can be turned
On
or
Off
. See set-up routines on page 30.
Error Tone
Three low-pitched beep indicates an invalid button press.
DSC Distress Alarm
High—low—high—low—high. Pause, then repeat. The volume of all alarms will
increase after 10 seconds. Press any button to turn it Off.
NOTE
This alarm sounds only for DSC distress calls on Channel 70.
It does not sound for voice calls on Channel 16 — you still
must listen for those.
Distress Acknowledgement Alarm
High—low—high—low—high. Pause, then repeat. The volume of all alarms will
increase after 10 seconds. Press any button to turn it Off.
DSC Routine Call Alarm
High—pause—high—pause—high. Long pause, then repeat. Press any button to turn
it Off.
DSC Geographical Alarm
Loud, continuous, medium-pitched, high-low tones (warble) — sounds
when a geographical call is received. Press any button to turn it Off.
DSC Position Request Alarm
Medium-loud, continuous, low-pitched series of closely spaced, four (4) beeps [three
(3) short – one (1) long] groups — sounds when a position request call
is received. Press any button to turn it
Off
.
DSC Individual Alarm
High—pause—high—pause—high. Long pause, then repeat. Press any button to turn
it Off.
Weather Alarm
Medium-loud, continuous, medium-pitched series of one-half (
1
⁄
2
) second beeps
spaced one-half (
1
⁄
2
) second apart — sounds when weather alert is turned
On
and NOAA sends a 1050 Hz weather alert tone on the selected weather channel. Press
any button to turn it
Off
.
Power On-Off
Transceiver power can be turned
On
or
Off
by the
On-Off Power/Volume
knob on the transceiver.
To Turn Your Radio On Or Off:
1.
Rotate the
Off Power/Volume
knob clockwise to turn on
the transceiver. To turn off the transceiver, rotate the
Off
Power/Volume
counter clockwise until a “click” is heard.
When the radio is powered
On
, the confirmation tone
will sound.
The radio will return to the settings in effect when it was
last powered
Off
, the LCD will show the corresponding
information, and all controls will be operative. The radio
will then be in
Standby
mode.
Volume
The
On-Off Power/Volume
knob on the transceiver controls the
speaker volume. The volume adjustment applies only to what
you hear from the speaker and does not affect the volume of
your outgoing messages. That is controlled by the circuitry of
your radio. The volume bar graph will be shown to indicate
the volume setting. 2 seconds after finishing the volume
adjustment, the radio will return to the
Standby
mode.
To Increase The Volume:
•
Turn the
On-Off Power/Volume
knob clockwise.
To Decrease The Volume:
•
Turn the
On-Off Power/Volume
knob counter-clockwise.
Squelch
Squelch
control filters weak signals and radio frequency noise so that you can more
clearly hear the signals you want. You can think of it as a variable barrier that blocks
what you don’t want to hear.
Operating Your Radio
Operating Your Radio
On-Off Power/
Volume Knob
VOlume
On-Off Power/
Volume Knob
On-Off Power/
Volume Knob
