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HX500S Page 25
8.4 NOAA WEATHER ALERT TESTING
In the event of a major storm or other appreciable weather condition requir-
ing vessels at sea (or other bodies of water) to be notified, the NOAA (Na-
tional Oceanographic and Atmospheric Administration) broadcasts a 1050
Hz tone that some VHF radios, including your HX500S, can detect for
“Weather Alarm” purposes (refer to section “6.4.1 NOAA WEATHER ALERT”
for a discussion of how to use this feature). The 1050 Hz tone, when de-
tected, will produce a loud beep in the speaker of the HX500S, to signal that
a Weather Alert Broadcast is being received.
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 oppor-
tunity to test your HX500S periodically to confirm that the Weather Alert fea-
ture is working, or for training crewmembers on how to configure the HX500S
to receive the NOAA Weather Alerts.