The wireless microphone systems convert the audio signals created by the microphones into radio signals, which are sent by air through a transmitter to a receiver and then passed through it to the sound system. These systems eliminate the need for cables, so that you are no longer tied to a sound system or tangled with cables on stage.
Thanks to continuous advances and improvements in sound quality and reliability, wireless microphone systems are now more affordable and popular than ever. Their potential uses go far beyond the scenarios. Now you can find wireless microphone systems in schools, workplaces, conference rooms, gyms – anywhere an interpreter or presenter needs real freedom of movement.
What components are necessary to use a wireless microphone system?
A wireless microphone system consists basically of two components:
The sound quality is influenced to a large extent by the microphone capsule. The wireless system itself should not affect the quality.
Types of transmitters
There are two types of transmitters: the hand transmitter and the Petaca transmitter, which are the ones that send sound without using cables, to a wireless receiver located in the mixer:
What is a hand transmitter
The hand-held microphone transmitter is the one that integrates the transmitter into the microphone tube, so it can perform both functions in the same unit.
What is the Bodypack Transmitter
The lavalier, the head instrument and the microphones, like the guitar cables, must be connected to a band transmitter to send their audio signal. They attach very easily to clothes and look very elegant.
What are the head vocal microphones or headbands:
The microphones with head systems are comfortable and very easy to install, they offer a high quality voice signal for any high activity environment.
The Lavalier Microphones
There are different sizes that combine a low level of visibility with a high quality professional audio signal. Having a clear and complete sound for all kinds of vocal applications.
What are the Microphones for instruments with clip.
They are a very versatile solution for interpreters of metal, wind or battery instruments with a high volume level. Its systems allow safe and precise fixing and positioning.
What is a wireless system for guitar and bass.
It is the one that allows to connect any guitar or bass to a beltpack transmitter for use with any wireless system.
WHAT IS THE CORRECT WIRELESS MICROPHONE?
Depending on the application, there is virtually a specific wireless microphone configuration. The appropriate model for each case depends on how you want to use it.
The type of application is the only key factor when choosing a wireless microphone. The design of the capsule and its polar pattern should be taken into account. They are characteristics that determine the way in which any wireless microphone reproduces its direct sound. When used by a singer performing his performance on a stage with powerful monitors, he must use a hand transmitter with a cardioid or even supercardioid polar pattern to minimize feedback.
A condenser microphone helps produce the cleanest and most natural sound possible if it is sung at a low level. If a Shure microphone with a cable has been used before, the logical thing is to choose the same microphone capsule with a wireless system.
On the other hand, in presentations or plays, lavalier and head microphones with an omnidirectional polar pattern are the most suitable, since wedge-type monitors are rarely used in these applications. These microphones offer the most natural sound and are the least sensitive to the sounds of breathing. They also offer the most natural sound – which is very interesting in being used in speeches, presentations.
Each wireless microphone system has a specific maximum amount of compatible channels that can be used at the same time. A separate system is always used in a specific location, any wireless system can be chosen. Before doing so, we recommend that you consider how many systems you will consider to be added in the future. It should also include wireless intraural monitoring systems.
If you choose a system with a maximum of four compatible channels, they may run out too soon. Some systems allow the simultaneous use of eight channels, twelve or even more without interference.
If more than one wireless system is used, the carrier frequencies should be chosen carefully, since it is possible that interferences and interactions of RF signals may occur. If you are using wireless systems of the same type, there will usually be no problems since the frequencies are usually stored in groups compatible with each other.