Standby, Receive And Transmit; Noaa All Hazards/Weather Radio And Alert - Cobra Marine MR HH125 Owner's Manual

Standby, Receive
and Transmit
Operating Your Radio VHF Marine Radio Protocols

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 that are active in Marine Standby mode. While in Marine
Standby mode, the user will be able to transmit by pressing the Push to Talk (Talk)
button. Users will hear signals on the selected channel(s) in Receive (RX) mode and
can hear alerts broadcast by the Coast Guard and NOAA.
NOTE
Coast Guard alerts are broadcast on Channel 16 and you need to 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.
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:
Check Channel Number
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.
Low Power Mode
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.
If the Battery Power icon begins blinking on the
Talk Button
LCD when the Talk button is pressed, the radio
will NOT transmit.
NOTE
If the Talk button is held down for five (5) 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
18 English
resume transmission.
VHF Marine Radio Protocols Operating Your Radio
•
Monitoring the weather will probably be a frequent use of your radio. NOAA provides
continuous, around-the-clock broadcasts of the latest weather information. Taped
weather messages run every four (4) to six (6) minutes and are revised every two (2)
or three (3) hours, or as needed. The Coast Guard also announces weather and other
safety warnings on Channel 16. Smart boaters keep an eye on safety and an ear to
the radio — and never let the weather catch them unaware.
In the event of a major storm or other weather condition requiring vessels at sea
or on other bodies of water to be notified, NOAA broadcasts a 1050 Hz tone that
receivers such as your CobraMarine VHF radio can detect and warn you of a weather
alert condition. When the Weather Alert mode on your radio is On, this signal will
produce a loud tone from the speaker in the radio and will automatically switch to
the alerting weather channel so the alert broadcast can be heard.
To test this system, NOAA broadcasts the 1050 Hz signal every Wednesday sometime
between 11 a.m. and 1 p.m. in each local time zone. Any receiver that can detect the
weather alert tone may use this service to verify that this system is functioning properly.
These signals will be received in Marine or Weather Standby modes as described below.
WX Standby Display
NOAA All Hazards/Weather
Radio and Alert
Weather (WX) Standby Mode
To enter the WX Standby mode, press and hold the
Power Level/Weather button. All common operating
functions of the radio will work the same in WX Standby
mode as they do in the normal Marine Standby mode. The
radio will be monitoring for all alerts in the background when
in the WX Standby mode.
Nothing Comes Close to a Cobra ® 19