What are those parabolic dishes on lampposts used for?

  • Thread starter DaveC426913
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In summary, a parabolic dish is a type of antenna that uses a curved reflector to focus radio waves and signals. It works by reflecting incoming waves towards a focal point, making it efficient for long-distance communication. It has various applications, including satellite communication, radar systems, and solar power generation. The advantages of using a parabolic dish include its ability to amplify signals, ease of installation, and durability. When choosing a parabolic dish, factors such as frequency range, distance of communication, and environmental conditions should be considered.
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DaveC426913
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I've seen a couple of these dishes high on lampposts over the highway. They're about 18 inches high. Bars are about 2-3 inches apart.


Not common, I've only spotted two so far. Both were pointing SouthEast. The reason I mention this is because one of them was on a shoreside highway and was pointed out over the water (Lake Ontario). The next land is about 30 miles away.

What kind of communications is this used for?
 

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Microwave.
 
  • #3
Integral said:
Microwave.
More likely UHF.
 

1. What is a parabolic dish?

A parabolic dish is a type of antenna that uses a parabolic reflector to focus radio waves and signals. It is commonly used for satellite communication and radar systems.

2. How does a parabolic dish work?

A parabolic dish works by reflecting incoming radio waves or signals towards a focal point, where the receiver is located. The curved shape of the dish helps to concentrate and amplify the signals, making it more efficient for long-distance communication.

3. What are the applications of parabolic dishes?

Parabolic dishes have various applications, including satellite communication, radar systems, wireless internet, and even solar power generation. They are also used in telescopes and microphones.

4. What are the advantages of using a parabolic dish?

One of the main advantages of using a parabolic dish is its ability to focus and amplify signals, making it ideal for long-distance communication. It is also relatively easy to install, has a simple design, and can withstand harsh weather conditions.

5. How do you choose the right parabolic dish for a specific application?

The size and shape of the parabolic dish will depend on the desired frequency range, the distance of communication, and the power of the signal. Factors such as cost, durability, and environmental conditions should also be taken into consideration when choosing a parabolic dish.

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