Cobra-electronics MRF45 User Manual download pdf (Page 15)

Nothing Comes Close to a Cobra

NOAA Weather Channels

And Alert

NOAA W eather Channels And Alert

•

Monitoring the weather will probably be a frequent use of your radio. The National

Oceanic and Atmospheric Administration (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 and DSC Channel 70. Smart boaters keep an eye on safety and an

ear to the radio — and never let the weather catch them unaware.

NOAA Emergency Weather Alert

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 the weather alert alarm tone from the speaker and a “weather alert”

message on the LCD to signal that a weather alert is being broadcast.

The radio will automatically switch to Weather Radio mode.

Test

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 feature to verify that this feature is functioning properly.

Weather Frequency/Channel

Channel RX Frequency MHz Weather Channel

1 162.550 NOAA

2 162.400 NOAA

3 162.475 NOAA

4 162.425 NOAA

5 162.450 NOAA

6 162.500 NOAA

7 162.525 NOAA

8 161.650 Canadian

9 161.775 Canadian

10 163.275 NOAA*

*This frequency is no longer in use.

VHF Marine Radio Protocols

English

World City Time Zones

W orld City Time Zones

•

Longitudinal Zone Offset City

E172.50 to W172.50 -12 IDLW (International Date Line West)

W172.50 to W157.50 -11 Nome

W157.50 to W142.50 -10 Honolulu

W142.50 to W127.50 -9 Yukon STD

W127.50 to W112.50 -8 Los Angeles

W112.50 to W097.50 -7 Denver

W097.50 to W082.50 -6 Chicago

W082.50 to W067.50 -5 New York

W067.50 to W052.50 -4 Caracas

W052.50 to W037.50 -3 Rio de Janeiro

W037.50 to W022.50 -2 Fernando de Noronha

W022.50 to W007.50 -1 Azores Islands

W007.50 to E007.50 GMT +0 London

E007.50 to E022.50 +1 Rome

E022.50 to E037.50 +2 Cairo

E037.50 to E052.50 +3 Moscow

E052.50 to E067.50 +4 Abu Dhabi

E067.50 to E082.50 +5 Maldives

E082.50 to E097.50 +6 Dhuburi

E097.50 to E112.50 +7 Bangkok

E112.50 to E127.50 +8 Hong Kong

E127.50 to E142.50 +9 Tokyo

E142.50 to E157.50 +10 Sydney

E157.50 to E172.50 +11 Solomon Islands

E172.50 to W172.50 +12 Auckland

VHF Marine Radio Protocols

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Cobra-electronics MRF45 User Manual Page 15

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