What is Meteor burst communication?
{{no sources|date=November 2024}} [[File:Meteor Burst SNOTEL.jpg|thumb|300px|Meteor scatter propagation as used by [[SNOTEL]]]] '''Meteor burst communication''' uses [[radio waves]] which bounce off the [[ion]]ized trails made by [[meteor]]s as they enter the [[earth|earth’s]] [[atmosphere]]. It is also called '''Meteor scatter communication'''. Meteors are lumps of [[Rock (geology)|rock]] which are floating about in [[Outer space|space]]. There are always meteors which are entering the earth’s atmosphere. They normally burn up in the atmosphere. A few very large ones that hit the earth are called 'meteorites'. Most meteors are only tiny specks of dust. As they enter the atmosphere the heat made by air friction rips off [[electron]]s. This produces an [[Ionization|ionized]] trail. This trail can [[reflection|reflect]] [[radio]] [[wave]]s in the same way that a [[wire]] would. The meteors that are used for meteor burst communication are between one thousandth and one hundredth of a [[gram]]. Meteors which are smaller than this are too weak to be used. Larger ones are not frequent enough. The ionized trail can last for several [[second]]s. During this time [[:wikt:message|messages]] can be sent between two radio communication stations. The messages will be transmitted very fast: about 200 times as fast as with ordinary [[shortwave radio]] communication. A [[teletypewriter]] may type several lines of text during a meteor burst. The two stations that want to communicate will have to be ready all the time as they never know when the next burst of communication will come. They may have to use several meteor bursts before the whole message is received. The transmitters are often put on [[buoy]]s in the [[sea]]. Meteor burst communication was first widely used in the 1950s. It was particularly useful for [[military]] communications, because a receiver could not tell exactly which direction the message had come from. This was because the message was reflected on the way, so it did not travel in a str