It is no secret to anyone that, at present, wireless networks have become a necessity, so they are widely used and humans basically depend on them. Especially thanks to the fact that, at this moment everything around us is connected to a network and, in many cases, without cables.
In this sense, despite the fact that different types of networks can be obtained, the truth is that most of them are being replaced by wireless systems at an outstanding rate. Which are known as "Wireless (or wireless) networks" and they are characterized by their easy configuration. This, because they are composed of waves and frequencies Wireless.
Therefore, it is truly important to know What is a wireless network wave, like a Wireless wave frequency. So, in this post, we will detail said information and we will make you aware of both wave types and wireless frequencies as also the main cycles of frequencies and waves.
What is a wireless network wave and what is it for in computing?
Although it is true, in the wireless networks There is no physical cable connection between the receiver and the sender of the data. Since, it is kept connected by radio or microwave waves to facilitate communications. In this sense, wireless network waves are responsible for transmitting a radio signal at a certain frequency to carry out the communication process that must be carried out between the sender and receiver of the information.
So these elements serve to simplify communication between them through space. So, in a nutshell, the basic component of type communications Wireless is a radio wave. Now, regarding its operation, we highlight that, they are carried out thanks to an antenna that allows a transmitter to send energy into space and the receiver to collect or detect it. Thus, transmitters and receivers are designed to work in a limited frequency range.
What is a wireless wave frequency and what is it for in networks?
Basically the whole pattern of a wave before it repeats, it is known as “cycle”, whereas, the number of cycles that a wave repeats in one second, it's called "frequency". So, a wireless wave frequency is defined as the number of times the latter is renewed in a given time. Usually the wave frequency is measured in the unit Hz (or Hertz) and this way, refers to several cycles per second.
Whereas, a thousand hertz is identified as 1 KHz (or Kilohertz), a million hertz is 1 MHz (or Megahertz) and a billion hertz is 1 GHz (or Gigahertz). In this sense, the wave frequency is an indication that it is used to express the number of vibrations (or waves) of a sound source per unit of time. Taking into account that, this concept is inverse to what refers to the wavelength; since, the greater the wavelength, the lower the wave frequency and vice versa.
That is, the longer the wireless network wave is, this less will be repeated. Even if a wave is transferred from one medium to a different one, the frequency will be constant, but the length and speed will fluctuate.
Types of waves and wireless frequencies What are all that exist so far?
Since the transmitters and receivers that star in wireless network waves are designed to operate in a limited frequency range, there is a classification that depends on the frequency range used to transmit these waves.
So, three types of wireless waves are distinguished based on the frequency range used to transfer them, which are:
Microwave satellite
In this case, certain links are made between two or more ground stations that they are called base stations. Thus, by means of this, the satellite receives the ascending signal in a frequency band, proceed to amplify it and then retransmit it in another band which is the descending signal.
Due, each satellite operates in a specific band. Added to that, the microwave frequency boundaries mix with each other with the infrared and high frequency radio waves. Reason why, there may be some interference with communications on specific wireless frequencies.
Terrestrial microwave
For this, satellite dishes with an approximate diameter of about three meters are used. Which, mainly, are characterized by providing a coverage of kilometers and for that, both the receiver and the sender they have to be perfectly aligned. Otherwise, the operation will be constantly truncated.
Therefore, point-to-point links are often used over short distances. In addition to this, it is a wireless system that includes frequencies from 1 to 300 GHz. However, it is possible that there is an attenuation due to rain, the most relevant being because it operates at a much more eminent frequency.
Infrared
It is defined as a system in which transmitters and receivers that modulate non-coherent infrared light are linked and for its optimal operation, they must be aligned with a reflection on a surface or directly. Thus, infrared covers a range from 300 GHz until 384 THz.
However, it is valuable to note that these they cannot break through the walls in any way. On the other hand, it is also necessary to highlight that, according to the frequencies they use, two types of signals are distinguished Wifi or, failing that, networks Wireless that transmit data by electromagnetic waves.
Below, we highlight which ones are:
- 4 GHz: This is the frequency of wireless signals most used, because they have the ability to pass through walls and windows in a completely optimal way. Thus, there are numerous devices that use this lower transmission frequency and, therefore, they are more crowded and can interfere with each other.
- 5 GHz: By its own identification, you can guess that it is a more frequent technology and thanks to that, It is characterized by its capacity to reach higher speeds. Because they are used by fewer devices and are clearer. However, cannot pass through walls or windows and its range is generally shorter.
Frequency and Wave Cycles What are Hz, MHz, and GHz?
While it is true, the cycle of a wave it is the smallest part of a repeating waveSince it is defined as the complete pattern of it. In consecuense, they consist of a positive and a negative cycle, because they all start at zero and end at zero, even the center also goes through zero. Now specifically when it comes to frequency and wave cycles, Hz, MHz and GHz come into play. Reason why, it is appropriate to discern what each of them is about.
Next, we detail it:
Hz or Hertz
Basically a Hertz It represents one cycle for every second, so it determines the frequency of a specific event. Being this, the main measure of a wireless wave and frequency cycle. Taking into account that, it refers to the frequency measurement unit in the International System of Units.
MHz or Megahertz
This consists of one of the main multiples of the Hertz and it is based on a unit of measure of the frequency that equals 106 hertz (i.e. one million Hz). Thus, a unit that very frequently used to measure network waves and the working frequency of a device, for example.
GHz or Gigahertz
This is another multiple of the hertz frequency unit of measure or Hertz and basically one GHz equals 109 Hz (or billion Hertz). Thus, they have a period of oscillation of 1 nanosecond and they are very used in communication by satellite dish, so they also have the ability to compute the waves of wireless networks. Valuing that, radio waves with frequencies close to GHz are known as "microwaves".