Noaa Weather Channels; Noaa Weather Alert; Noaa Weather Alert Testing - Standard Horizon HX400 Owner's Manual

6.5 NOAA WEATHER CHANNELS

In the event of a major storm or other appreciable weather condition requiring
vessels at sea (or other bodies of water) to be notified, the NOAA (National
Oceanographic and Atmospheric Administration) broadcasts a 1050 Hz tone
which the HX400 can detect and alert you of pending storm warnings. The
1050 Hz tone, when detected, will produce a loud beep in the speaker of the
HX400, to signal that a Weather Alert Broadcast is being received.
1. To receive a NOAA (National Oceanic and Atmospheric Administration)
weather broadcast, press and hold the
transceiver changes to the weather channel mode and
recalls the last used NOAA weather channel. This mode
consists of a preset memory bank containing the NOAA
weather channels.
2. Press the
3. To exit from the weather channel mode, press and hold the
transceiver will revert to the channel you were using prior to switching to
the weather channel mode.

6.5.1 NOAA WEATHER ALERT

In the event of extreme weather disturbances such as storms and hurricanes,
NOAA sends a "weather alert" consisting of a 1050 Hz tone, followed by weather
reports on the weather channels.
When a "weather alert" is received on a weather channel,
the transceiver emits a beep tone. Press the
stop the beep tone and listen to the weather reports.

6.5.2 NOAA WEATHER ALERT TESTING

In order to test this system, NOAA broadcasts the 1050 Hz tone every Wednes-
day sometime between 11 AM and 1 PM local time. You may use this opportu-
nity to test your HX400 periodically to confirm that the Weather Alert feature is
working, or for training crew members on how to configure the HX400 to re-
ceive the NOAA Weather Alerts.
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or key to change to other weather channels.
key. The
key to
key. The
HX400