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Standby/Receive
and Transmit
VHF Marine Radio Protocols
Operating Your Radio
26 English
Standby/Receive
and Transmit
Introduction
VHF Marine Radio Protocols
Operating Your Radio
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).
NOTE
Coast Guard alerts are broadcast on Channel 16. While in
Marine Standby
mode, you will receive any messages sent on the channel to which you are
tuned.
27
Nothing
Comes Close to a Cobra
®
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 held at the level it was at
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
V
T
R
A
G
X
Transmit (Tx) Icon
V
T
R
A
G
X
Receive (Rx) Icon
NOTE
If the Talk button is held down for four (4) minutes,
the radio will automatically sound a series of beeps
and cease transmitting to prevent unwanted signal
generation and battery drain. As soon as the Talk
button is released, it can be pressed again to
resume transmission.
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