WiFi Antennas Explained

best wifi antennas

The technology behind WiFi antennas and GPS antennas made it all possible for the advent of wireless communication to happen. It marked a new age for every one of us, a revolution in the very way we share and exchange information.

Wireless communication is simply defined as the exchange or the transfer of information from one media to another in the absence of physical connection to each other but is made possible, though, by electrical conduction.

What is Antenna?

Before we delve into something else, we need to define first what an antenna is and do it from its technical side. An antenna is a device designed and structured to convert electrical signals to EM waves, or vice versa.

The electrical signals that are coming from the transmitting circuits of an antenna will be transformed into EM waves, after which they would be radiated into the atmosphere. As for the receiving antenna, its work will begin by capturing those EM waves in the atmosphere and convert them back to the original electrical signals for further processing.

As for the dimensions of the different parts of the antenna, this would greatly depend upon the EM wave frequency that is being transmitted. When it comes to the components of the antenna and their dimensions, they will vary so as to match or be at par with the wavelength or frequency of the transmitted signal.

The vast majority of wireless communication devices we have today that are separated from each other by considerable distance will need to make use of some kind of antenna. There are occasions that these antennas will have to be external, and thus they can be easily observed, much like routers. Others are indelibly etched in the module of the PCB itself.  

WiFi

WiFi is a wireless technology that almost every one of us is most familiar with because we use it in our home network to access the cyberspace or the Internet. People nowadays know one important value of WiFi, it helps us communicate with other people, even if both parties are situated in the far-flung corners of the world.

We can also take advantage of WiFi technology in transferring files and information across devices at amazing warp speeds. Modern pieces of home and office equipment such as scanners, desktop and laptop computers, printers and other similar hardware can be shared and accessed wireless, without needing to use wires that will lay and hang around the floor.

WiFi Antennas

Long range WiFi antennas work in much the same way as to how the above-stated communication block diagram. However, instead of using voice, network data packets are used and transmitted instead.

reliable wifi antennas

These data packets would be converted to EM waves via the access point/wireless router and they are radiated out via a transmitting antenna. Your mobile device has its antenna inside and this will convert the EM waves back to its original form as electrical signals for data processing.

The Advantages of Interactive Touch Screen Displays

The availability of touchscreens systems has greatly revolutionized the way how we communicate today with a range of electronic devices like cellphones, retail kiosks, and computers. While interactive touch screen displays are becoming very common and are utilized almost everywhere, their significance in a business setting could not be undermined. On the other hand, in a corporate setting, displays and monitors are used as entertainment centers, interactive video conferencing systems, and presentation tools.

The mere use of these systems is one reason why it is easy to find a range of touch screens in the market for business purposes. Below are some reasons why such technology is important for modern businesses.

The Importance of Interactive Touch Screen Displays

Fast and Easy to Use

We can never deny that touchscreens are very easy to use. Also, they allow users to navigate through the details without having to continuously click buttons just to change pages or go through the menus. In the case of a presentation, the very last thing that you would want is to wait while the presenter shuffles through a keyboard or mouse. With the help of a touch screen monitor, the presenter would be able to keep going with the presentation without interruptions. In addition, touchscreens help increase the speed of the presentation as there is no need to pick up the computer mouse to locate the pointer on the screen.

touch screen display

Reduces the Size of a Device

With the use of a conventional computer and system, the presenter would need to work on equipment that includes a mouse, computer monitor, keyboard, and presentation tools. On the other hand, the interactive display is an all-in-one-system. Furthermore, there is a wide range of touch screens so choosing the most suitable one is easy.

Reduces Cost of Operations

Presentation equipment like a mouse, keyboards, desktops computers, and projectors need maintenance. A projector needs so much maintenance by regularly cleaning the air filters, as well as replacing the bulbs. On the other hand, touch screen displays do not need a lot of maintenance and they can even operate longer without issues. You also must factor in components such as a projector, along with other things. It is a must that relevant issues should be considered when deciding.

Based on LED and LCD technologies

Just like with the touchscreen display that is found on a smartphone, there is a variety of touch screens that can be found in the market that utilize LED and LCD technologies. This gives a very clear, sharp, and rich image. Such high definition and high-resolution displays ensure that during presentations all members would be able to focus on intricacies that are discussed without having to lose track of what is going on because the display is not clear.

With all these things, it is no wonder why our lives are becoming so much more convenient, fast, and easy in today’s time. With this technology, the use of gadgets has become very user-friendly and we can expect to see more developments in the next years to come.

Is UHF Antenna a Better Choice than VHF?

Is UHF Antenna a Better Choice than VHF?

Knowing the differences between these two will help recognize the best signal frequency to use for a two-way radio. For example, a UHF antenna doesn’t travel as far as very high frequency, but it has a higher bandwidth.

Different wireless communications systems like two-way radios and cell phones operate operating frequency. It is the government that regulated the frequencies, as well as equipment that is used to communicate. It is a given that various kinds of radio signals, thus different wireless equipment is needed to satisfy the needs. Below are some more information you need to know about UHF and VHF.

VHF Antenna

VHF is often used for long-range communication, marine communication, long-range data communication, two-way land mobile radio system, and FM radio broadcast. It includes radio waves that are from 30Mhz-300Mhz.

VHF wave should not be over the local radio horizon to 100 miles. The frequencies are not likely to be disrupted by any issues with any electrical equipment, atmospheric noise, and other types of interferences. As it has a lot of different users, the low-band VHF is not very much recommended to be used for serious applications because of the level of radio noise that is present in these frequencies. In spite of the possibility of background noise, this remains a great choice because of being a low cost. Its transmission power is restricted to below 50mW, unless you will be functioning an assistive listening system that should be in 72-76MHz range. At the same time, a big antenna booster is needed, measuring as much as 3ft, thus limiting its portability.

UHF Antenna

Indoor UHF antenna radio waves are shorter when it comes to length compared to VHF, measuring at around 12-24 inches. This results in antenna length and radio range that is reduced. Anything from a human body to a building can disturb the transmission. Interferences and dropouts are more possible, but larger bandwidth occupation is allowed. This results in a broader frequency range and a wider scope of audio signals. Ut to 250mW is allowed, surpassing 50mW power restrictions.

In addition, UHF radio waves could only go as far as the line of sight. Anything that could get in the way of your eyesight would interfere with the frequency range, like tall trees, buildings, and other obstructions. For its transmission, it is high enough to be able to infiltrate through the walls of buildings, thus making the reception inside to be possible. The line of sight broadcast range is what makes the UHF incompatible in some cases. On the other hand, VHF offers a bigger broadcast range, the reason why it is preferred in some industries.UHF radio signals are utilized in many aspects of life including Wi-Fi, cellphones, cordless phones, walkie-talkies, television broadcasting, GPS, Bluetooth, and satellite communications. A large benefit of UHF transmission is its short wavelengths that are produced by high frequency. The radio wave size relates immediately to the transmission length and the reception antenna. Generally, UHF antennas are wide and short. Click this link to learn more about these two types of antennas.