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Radio: Difference between revisions
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Introduction and body text for page Radio.
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(Introduction and body text for page Radio.) |
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== Introduction == | |||
This page introduces radio as a practical and reliable communications infrastructure for use in a situations and events where Internet access and mobile communications are not available. | |||
The Internet and mobile networking are complex infrastructures dependent on a stack of technology for their function, from internet exchanges to routing and switching hardware, submarine cables, base stations and their antennae and a stable power grid. This complexity introduces multiple points of vulnerability. For instance, a flood could damage a power station, causing a black out that results in no Internet access at home nor mobile data, texts or calls via the cellular network. | |||
It is here that radio offers a valuable fallback technology for not only receiving critical status updates and information from local authorities and other communities, but also can allow for transmissions from your own community or group that can help you reach others and get needed assistance. | |||
=== Receiving broadcasts === | |||
In an emergency where critical infrastructure is experiencing outage, local information will almost always be broadcast over AM (also referred to as Medium Wave) and/or FM. It is for this reason, at the least, a simple AM(MW)/FM radio with charged batteries and spares should be acquired and stored in an accessible place. They can usually be bought very cheaply. [[File:Am-fm-radio.jpg|thumb|A photo of 2 AM(MW)/FM radios, each with extendable antenna and headphone jack.]] | |||
It is good to buy am AM(MW)/FM radio with a mini-jack socket and extendable antenna. The mini-jack socket allows for plugging in headphones which can be useful when reception quality is poor. The extendable antenna can greatly aid in finding and receiving a broadcast. | |||