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2. Wireless Emergency Alerts - Wikipedia

   en.wikipedia.org/wiki/Wireless_Emergency_Alerts

   An example of a Wireless Emergency Alert on an Android smartphone, indicating a Tornado Warning in the covered area. Wireless Emergency Alerts (WEA, formerly known as the Commercial Mobile Alert System (CMAS), and prior to that as the Personal Localized Alerting Network (PLAN)), [1] is an alerting network in the United States designed to disseminate emergency alerts to mobile devices such as ...

3. Mobile phone signal - Wikipedia

   en.wikipedia.org/wiki/Mobile_phone_signal

   Mobile phone signal. A mobile phone signal (also known as reception and service) is the signal strength (measured in dBm) received by a mobile phone from a cellular network (on the downlink). Depending on various factors, such as proximity to a tower, any obstructions such as buildings or trees, etc. this signal strength will vary.

4. Cell Broadcast - Wikipedia

   en.wikipedia.org/wiki/Cell_Broadcast

   Cell Broadcast messaging was first demonstrated in Paris in 1997. Some mobile operators used Cell Broadcast for communicating the area code of the antenna cell to the mobile user (via channel 050), [4] for nationwide or citywide alerting, weather reports, mass messaging, location-based news, etc. Cell broadcast has been widely deployed since 2008 by major Asian, US, Canadian, South American ...

5. How can you turn on weather alerts on iPhone, Android ... - AOL

   www.aol.com/turn-weather-alerts-iphone-android...

   How to turn on weather alerts on an Android device. Android Authority says the short answer is to long-press the Weather app. Go to App info, then Notifications, then Weather alert to enable ...

6. Why your phone weather app probably won’t tell you if you’re ...

   www.aol.com/why-phone-weather-app-probably...

   And the temperatures can be significantly higher than what the weather app on your phone suggests. “If you walk around with your weather app, they don’t really change based on location ...

7. Wireless Emergency Alerts in Germany - Wikipedia

   en.wikipedia.org/wiki/Wireless_Emergency_Alerts...

   Katwarn (also known as KATWARN) is an alert and information system that informs the affected citizen in disasters and dangerous situations (e.g. large fires, power outages, bomb finds). Since 2011, Katwarn has been in use in Germany in various cities, counties and city states, as well as at the state (Bundesländer) and federal level.