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Microwave towers are simply masts for transceivers that use frequencies above 1 gigahertz.

Due to the shortness of the wave length, the normal types of radio aerials are not efficient at such high frequencies therefore microwave towers are usually covered in dish and horns antennas which usually provide point to point communications.

Microwave signals are such high frequency that they tend to only work line of sight (LOS). Like light waves they are attenuated by objects in the way (This can include rain and weather). Radio signals at this frequency can get around obstacles by reflection & refraction, literally bouncing off objects or bending around corners like light going through water. This explains why microwave towers are generally at the highest point in the landscape.

Most peoples experience of microwave transmitting towers are in the form of mobile phone masts, but like any radio transmitter, microwave transceivers can carry any information or data. For example, they can be used for non-information systems such as RADAR systems for the Coastguard and location beacon systems such as are used along rivers and coasts to provide navigation information for ships.

Systems that use microwave transmitters and might be on a tower near you;

Sat Nav

RADAR

Phone Systems and data

microwave relay

Location Beacons

Point to point communications

Wireless LAN Systems

Other unspecified data systems

Space communications

telemetry data

.

...and probably many more.

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15y ago

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