The Best UHF Antenna Frequencies for Your Wireless Microphone System

A wireless microphone system receives and transmits on a radio frequency or also known as operating frequency. The allocation and regulation of frequencies and bands vary from country to country. Aside from frequency that present in a UHF antenna, government agencies also specify other aspects of the equipment. This includes maximum deviation, allowable transmitter power, and spurious emissions among others. All these specifications vary from one band to the next and from one user to another.

VHF and UHF Antenna for your System

UHF and VHF regions has various bands that are utilized for various systems. But there are some regulatory, physical, and economic disparities between these two that needs to be noted. The main physical attributes of a UHF radio wave is the shorter length of antenna for a UHF wireless microphone system.

One consequence is lesser radio wave transmission both through air and non-metallic materials like human bodies and walls. As a result, there is less transmitting reach for radiated power. One more consequence is the higher amount of radio wave reflection by smaller-sized metal objects which results in more severe and frequent duo to multi-path.

Knowing the Regulations

The regulations for both users and for licensing are the same in the UHF and VHF bands, regulations for the material would allow two possible differences. In the case of FM signals in the UHF band, greater bandwidth is possible. This allows greater deviation for wider frequency scope, as well as wider dynamic range of audio signal.

Additionally, a transmitter power up to 250mv is possible. Lastly, the available radio spectrum for UHF wireless microphone system usage is eight times higher than those with a VHF. With this, there is a larger number for a wireless microphone system to be operated.

The effective higher deviation limits of a UHF are not used as this results in the reduction in the number of systems that is operated: the corresponding enhanced occupied bandwidth of every system utilizes more than the available frequency reach. At the same time, the use of improved transmitter power is not common as this results in a decreased battery life and mutual interference.

But for UHF systems that has less than the maximum limit of power and deviation, the capability of a higher number of simultaneous systems is an important benefit in specific applications. This is true since a UHF system could be used along with a VHF system.

The main economic difference of a UHF and VHF operation is that UHF equipment has higher cost. Usually, it is a lot more difficult and expensive to design and make UHF devices. This is the result of the behavior of short wavelength/high frequency radio signals. The current UHF system cost more than a VHF system. Such cost differential is applicable to cables, antennas, and other accessories and the basic receiver and transmitter.It is very evident that the use of UHF antenna has greatly change our lives today. If you want to upgrade your wireless microphone system, be sure that you opt for the best quality one. Click right here to know the other benefits of using a UHF or VHF antenna.

How to Install a GPS Antenna System for Your Car?

In the first place, what exactly is a GPS antenna? How does it work? GPS with antenna, these are modern tech devices that receive and amplify radio signals that are being transmitted by GPS satellites on specific frequencies. They are then converted and become an electronic signal to be used by a GPS receiver, which allows the device to make a precise computation of its location. 

When you install an in-dash navigation receiver, it is somehow comparable to the installation of regular touch screen stereos, well at least for the most of it. But know that there are a handful of setbacks here, the reverse direction sensor and the antenna. 

Proper Installation of GPS Antennas 

When it comes to installing external GPS antennas equipped with in-dash navigation receivers, there are simple guiding rules you need to keep in mind. The first one here never attempt to modify the antenna in any way. 

Even making cuts to it can lead to serious repercussions. Another thing to remember, you need to ensure it is always in perpetual contact with various GPS satellites that are in orbit to the earth. The best way to ensure this is to mount it in a position that will have minimal interference with its signal.  

How Obstructions Affect Your GPS Reception

GPS navigation systems will only carry out their expected functions when they can receive needed signals coming from a web of global satellites that comprises the Global Positioning System. 

By taking into account directions that is being indicated by multiple satellites, the GPS machine can make calculations of its physical geographic location. The margin of error here is very much alleviated. 

One of the requisites for a GPS device to work optimally is a clear sky, completely void of any obstruction. Otherwise, it will have difficulty in grasping satellite signals. This happening can pave the way for it not to operate, or it will still function but with a much-degraded accuracy. 

When GPS for car’s level of accuracy deteriorates, it can be due to surrounding structures such as surrounding tall buildings, or skyscrapers that are yonder your location or any other similar infrastructures. However, it must be remembered that car roofing systems can also serve as an obstruction to the strength of the GPS signal. 

Car GPS
Best GPS antennas

If surrounding obstructions are inevitable, there is one effective way to mitigate its effects and that can be done by placing your GPS antenna locator by your car window. But then again, there is a possibility that doing this in your own car may present you with some unique challenges as opposed to vehicles.

And there is no other way to determine this other than giving it a try. For example, metal roofs have a natural tendency to produce an even more intense RF shield when compared to ragtops. If your vehicle happens to have tinted windows, chances are high that they have tiny metal particles in them which can also cause some disruption to your GPS signal’s strength.  

If the GPS with antenna  you have fails on you when it is trying to obtain a signal, or if there are many observable occasions that it is giving you inaccurate and obviously unreliable data, then acquiring an external antenna is highly recommended. Usually, this measure will significantly help in fixing the problem.

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