VHF Marine Radio Protocols
Operating Your Radio
23
Nothing
Comes Close to a Cobra
®
Standby/Receive
and Transmit
To Set WX Auto Search (SCAN) On or Off:
WX
auto search setup is only shown if
WX Alert
is set to
ON
.
1.
Display will show
Weather
icon and the matrix will display
WX SCAN
with
ON
or
OFF
flashing.
2.
Press
Channel Up/Down
button to select
ON
or
OFF
.
3.
Press the
Call/Enter/Setup
button to save entry.
You have now ended the
WX Setup
programming mode
and will enter the
WX Alert Standby
mode.
NOTE
When
WX Auto Search (SCAN)
is set to On, weather
channel scanning will start automatically and scan all
available weather channels until the strongest channel
is found. This will happen under the following
conditions:
■
WX Alert
is engaged.
■
WX
received signal level falls below
a preset squelch and
– radio is in
WX Standby
OR
– radio is in
VHF Standby
and there is no
channel activity.
Standby/Receive and Transmit
•
Marine Standby and Receive (Rx) Mode
Marine Standby
mode is the default mode for the radio whenever it is turned on.
From this mode, you can change current settings by becoming familiar with the
different key functions in
Marine Standby
mode. While in
Marine Standby
mode, the
user will be able to transmit by pressing the
Push to Talk (Talk)
button. Signals in
Receive (Rx)
mode will be received on the selected channel(s), and alerts broadcast
by NOAA will activate the corresponding NOAA weather alert channels in your radio.
NOTE
Coast Guard alerts are broadcast on Channel 16. You must have the
WX Alert
turned On to receive NOAA weather alerts. While in
Marine Standby
mode, you
will receive any messages sent on the channel to which you are tuned.
22 English
VHF Marine Radio Protocols
Operating Your Radio
Standby/Receive
and Transmit
Transmit (Tx) Mode
Transmit (Tx)
mode gives you the ability to interact with
safety services, other vessels and shore stations. When you
use this capability, be sure to follow the procedures and to
observe the courtesies that govern its use so everyone
benefits. See Appendix to help you select the proper
channels.
To Transmit a Message:
1.
Check to see that your radio is set to a proper channel for
the type of message you plan to send.
2.
Toggle to the
Low Power
setting.
3.
With the microphone about 2 in. [51 mm] from your
mouth, press and hold the
Talk
button and speak into the
microphone. The
Transmit
icon will appear on the LCD.
4.
Release the
Talk
button when you are finished speaking.
Your radio can only operate in either
Transmit (Tx)
or
Receive (Rx)
mode at any given time. You will not hear
the response to your message unless the
Talk
button is
released.
Battery Power
icon is frozen for TX at whatever
level it was during receive.
S
X
LO
MEDHI
A
B
I
U
Low Power Mode
SAM
ATIS VOX
LO
MEDHI
T
R
A
B
X
C
I
U
Check Channel Number
Talk Button
MEM
SAME
ATIS VOX
LOMEDHI
VHF
T
R
A
B
GMRS
X
C
I
U
WX Auto Search (SCAN)
MRHH350W_FLT_MANL_ENG_MRHH330_ENG_Body 10/30/13 2:39 PM Page 22
